FCC ID: OW4-PRC4090HF Tactical HF SDR Transceiver

Compliance Barrett 4000 series Transceivers comply to the following communications standards:

Australian / New Zealand Standard MF and HF Radio Communications. Equipment in the land mobile service utilising single sideband suppressed carrier emission:

AS/NZS 4770:2000 FCC Part 90. FCC Part 87. Innovation, Science and Economic Development Canada (ISED) RSS-125 Iss: 3 Barrett 4000 series Transceivers comply to the following EMC standard:

EN301 489-1 V 1.4.1 (2002-08). Barrett 4000 series Transceivers comply to the following electrical safety standard:

EN60950-1:2002. ISED Non-interference Disclaimer This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1)

(2) This device may not cause interference. This device must accept any interference, including interference that may cause undesired operation of the device. Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

(1)

(2) Lappareil ne doit pas produire de brouillage;

Lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. FCC RF Exposure Compliance Statement The Barrett 4000 Series Transceivers have been evaluated and comply with the Federal Communications Commission (FCC) and Innovation, Science and Economic Development Canada (ISED) RF exposure limits for the General Population/Uncontrolled exposure environment. In addition, the Transceivers comply with the following standards and guidelines:

FCC 96-326, Guidelines for Evaluating the Environmental Effects of Radio-

Frequency Radiation FCC OET Bulletin 65 Edition 01-01 (2001) Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields - RF and Microwave. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1)

(2) this device may not cause harmful interference, and this device must accept any interference received, including interference that may cause undesired operation. Please note that changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. RF Exposure Warning To ensure optimal Transceiver performance and to avoid exposure to excessive electromagnetic fields, the antenna system must be installed according to the instructions provided. High voltages exist on the antenna during transmission and tuning. Do not touch the antenna during these activities. RF burns may result. Install the grounding system or counterpoise as directed to prevent RF burns from any metal part of the Transceiver. Safe working distance is based on continuous exposure to CW type transmissions, as set out in the ICNIRP Exposure Guidelines (1998) for occupational exposure. Safe working distance can be reduced with normal voice communication. For ISED and FCC compliance, when the PRC-4090 HF SDR Transceiver is used at a power level of 150 watts PEP and a 13 dBi gain antenna, the antenna(s) used with this Transceiver should be located at least 14.4 metres from the operator and should not be co-located or operating in conjunction with any other antenna or transmitter. For ISED and FCC compliance, when the PRC-4090 HF SDR Transceiver is used in a vehicular environment at a power level of 150 watts PEP with 1.5 dBi gain antenna, the antenna(s) used with this Transceiver should be located at least 3.9 metres from the operator and should not be co-located or operating in conjunction with any other antenna or transmitter. RSS-Gen Transmit Antenna Statement This radio transmitter [6468A-4090HF] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Le prsent metteur radio [identifier le dispositif par son numro de certification dISDE] a t approuv par Innovation, Sciences et Dveloppement conomique Canada pour fonctionner avec les types d'antenne numrs cidessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu pour tout type figurant sur la liste, sont strictement interdits pour l'exploitation de l'metteur. Under Innovation, Science and Economic Development regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by ISED. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (E.I.R.P.) is not more than that necessary for successful communication. Typical antenna types and minimum separation distance:

Antenna type*

Gain

(dBi) Automatic tuned and Whip 0 Magnetic Loop Multi-wire Broadband Log-Periodic Automatic tuned and Whip Magnetic Loop Multi-wire Broadband Log-Periodic Automatic tuned and Whip Magnetic Loop Multi-wire Broadband Log-Periodic 1.5 5 13 0 1.5 5 13 0 1.5 5 13 PEP

(W) 150 150 150 150 100 100 100 100 30 30 30 30 Minimum safe separation distance Typical environment

(m) 3.3 3.9 5.8 14.4 2.7 3.2 4.7 11.8 1.5 1.8 2.6 6.5 Vehicle Vehicle Fixed Fixed Vehicle Vehicle Fixed Fixed Manpack Vehicle Fixed Fixed

* All antennas listed have an impedance of 50Ohms. The above antennas are identified for reference only. It is important that the installer and operator maintain a minimum safe separation distance with the actual antenna used in the installation and to insure, in a vehicular environment, that the transmitter is only used when persons outside the vehicle are at least the recommended lateral distance away. The image below shows an example of minimum recommended separation distance from antenna in a vehicular environment. Note: References to Vehicular environments and minimum safe operating distances relate to persons outside the vehicle only and not to persons within the vehicle.

BARRETT Operating and Installation Manual Barrett PRC-4090 Tactical HF SDR Transceiver Model: PRC-4090 HF SDR Transceiver 4090-00-02/3.1 Barrett Communications RF Exposure Warning To ensure optimal transceiver performance and to avoid exposure to excessive electromagnetic fields, the antenna system must be installed according to the instructions provided. High voltages exist on the antenna during transmission and tuning. Do not touch the antenna during these activities. RF burns may result. Install the grounding system or counterpoise as directed to prevent RF burns from any metal part of the transceiver. Safe working distance is based on continuous exposure to CW type transmis-

sions for occupational exposure. Safe working distance can be reduced with normal voice communication. Important Notes:

When the PRC-4090 transceiver is used at a power level of 150 watts PEP and with a 13 dBi gain antenna, the antenna(s) used with this transceiver should be located at least 14.4 metres from the operator and should not be co-located or operating in conjunction with any other antenna or trans-

mitter. When the PRC-4090 transceiver is used in a vehicular environment at a power level of 150 watts PEP with 1.5 dBi gain antenna, the antenna(s) used with this transceiver should be located at least 3.9 metres from the operator and should not be co-located or operating in conjunction with any other antenna or transmitter. Antenna types not included in the list below that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. 3 Typical antenna types and minimum separation dis-

tance:

Antenna type Gain

(dBi) PEP

(W) Minimum safe sepa-

ration distance (m) Automatic tuned and whip Magnetic Loop Multi-wire Broadband Log-Periodic Automatic tuned and Whip Magnetic Loop Multi-wire Broadband Log-periodic Automatic tuned and Whip Magnetic Loop Multi-Wire Broadband Log-Period 0 1.5 5 13 0 1.5 5 13 0 1.5 5 13 150 150 150 150 100 100 100 100 30 30 30 30 3.3 3.9 5.8 14.4 2.7 3.2 4.7 11.8 1.5 1.8 2.6 6.5 Typical Environ-

ment Vehicle Vehicle Fixed Fixed Vehicle Vehicle Fixed Fixed Manpack Vehicle Fixed Fixed The above antennas are identified for reference only. It is important that the installer and operator maintain a minimum safe separation distance with the actual antenna used in the installation and to insure, in a vehicular environ-

ment, that the transmitter is only used when persons outside the vehicle are at least the recommended lateral distance away. The image below shows an example of minimum recommended separation dis-

tance from antenna in a vehicular environment. 4 Note: References to Vehicular environments and minimum safe oper-

ating distances relate to persons outside the vehicle only and not to persons within the vehicle. 5 Contents INTRODUCTION 1 ................................................................................1 Introduction ..................................................................................................2 Important Disclosure ............................................................................. 3 Terms & Abbreviations .......................................................................... 4 The Barrett PRC-4090 HF Transceiver Overview..............................................6 BASIC OPERATION 2 ..........................................................................17 Starting the Transceiver ...............................................................................18 Keypad ........................................................................................................18 Display ........................................................................................................19 Swipe Menu ........................................................................................ 21 Status Info ...................................................................................................23 Antenna Type ..............................................................................................24 Selecting a Channel .....................................................................................25 Making a Voice Call .....................................................................................26 Making an Emergency Call ..........................................................................27 Receiving an Emergency Call .......................................................................28 SELCALL 3...........................................................................................29 Overview .....................................................................................................30 Important Selective Calling Information ......................................................31 Summary of Calling Systems .......................................................................32 Setting up a Self ID .....................................................................................33 Setting up Contacts .....................................................................................34 Additional Contact Information .......................................................... 36 Making a Selcall ..........................................................................................37 6 Beacon Call ......................................................................................... 38 Selcall .................................................................................................. 39 Telcall .................................................................................................. 41 Advanced Call History ......................................................................... 43 Advanced Selcall Functions .........................................................................47 Selcall Settings .................................................................................... 47 Pagecall ............................................................................................... 48 GPS Request ........................................................................................ 49 GPS Position ........................................................................................ 51 Status Call ........................................................................................... 52 Secure Call .......................................................................................... 53 Hangup Call ........................................................................................ 55 Selcall Networks .................................................................................. 56 BASIC SETTINGS 4 ..............................................................................59 System Information .....................................................................................60 Head Device ID .................................................................................... 60 Serial Number ..................................................................................... 60 Version Information ............................................................................ 60 Transceiver Options ............................................................................. 61 Configuration Pack Information .......................................................... 61 SDV/4026 Serial Number ..................................................................... 61 General Settings ..........................................................................................62 Audio Settings .............................................................................................63 Display Settings ...........................................................................................64 PROGRAMMING 5 ..............................................................................65 Channel Programming ................................................................................66 7 Programming Channels Through the Handset .................................... 66 Free Scroll Rx/Tx ...........................................................................................70 Programming Via USB .................................................................................73 ADVANCED OPERATION 6 ..................................................................75 ARINC Call ...................................................................................................76 Audio - Advanced ........................................................................................77 Rx Configuration ................................................................................. 77 Tx Configuration ................................................................................. 77 Audio Bandwidth ................................................................................ 77 Line Audio ........................................................................................... 78 Line Follows Digital Voice .................................................................... 78 Line Out Level ..................................................................................... 78 Line In Level ........................................................................................ 78 Audio Record ...................................................................................... 78 Custom Filter Bandwidth .................................................................... 78 Collective Call ..............................................................................................79 Digital Voice (Encoding) ..............................................................................80 Export .........................................................................................................81 Frequency Hopping .....................................................................................82 Selecting the Hopping Band................................................................ 82 Entering the Hopping PIN ................................................................... 82 Enabling and Disabling Hopping ......................................................... 82 GPS Push .....................................................................................................83 GPS Push State .................................................................................... 83 Privacy Key .......................................................................................... 83 Preamble Time .................................................................................... 83 IO Settings ..................................................................................................84 8 RS232 Connection ............................................................................... 84 RS232 Network Encryption ................................................................. 84 RS232 Out (async. Indications) ............................................................ 84 RS232 Baud Rate ................................................................................. 85 External Alarm Type ............................................................................ 85 Antenna Select Behavior ..................................................................... 85 Antenna 1 ........................................................................................... 85 Antenna 2 ........................................................................................... 85 Modes .........................................................................................................87 Mute ...........................................................................................................88 Network ......................................................................................................90 Noise Reduction (NR) ..................................................................................93 RF Settings ..................................................................................................94 Rx Preamp ........................................................................................... 94 Tx Over Beep ....................................................................................... 94 Tx Timeout .......................................................................................... 95 Noise Blanker ...................................................................................... 95 Tx Power Level .................................................................................... 95 AGC Hang ........................................................................................... 95 Broadcast Filter ................................................................................... 95 Scanning .....................................................................................................96 Scan Settings ...................................................................................... 97 Secure Display Mode .................................................................................100 Security Settings ........................................................................................101 Use OEM Selcall Privacy Key .............................................................. 102 OEM Selcall Privacy Key ..................................................................... 102 Frequency Hop PIN ............................................................................ 102 Frequency Hop Rate .......................................................................... 102 9 OEM Secure Type .............................................................................. 102 OEM Secure Key ................................................................................ 102 Secure Digital Voice/Data Key ............................................................ 103 Digital Voice Baud Rate ..................................................................... 103 Selcall Secure Call Hop Rate .............................................................. 103 Selcall Secure Call Code .................................................................... 103 SDV/4026 Programming Mode ......................................................... 103 Service Mode .................................................................................... 103 Enable Power On PIN ........................................................................ 104 Transceiver Lock ................................................................................ 104 Over the Air Zeroise (OTAZ) ............................................................... 104 Zeroise .............................................................................................. 104 Remote Access Password .................................................................. 104 Stealth Mode .............................................................................................105 Theme Schedule ........................................................................................106 Tuning .......................................................................................................107 Zeroise ......................................................................................................108 INSTALLATION 7 ...............................................................................109 Introduction ..............................................................................................110 Installing a Secondary Control Handset .....................................................111 Manpack Installations ...............................................................................112 Control Handset Mounting ............................................................... 113 Battery Pack ...................................................................................... 115 Tactical Antenna Options .................................................................. 122 Tactical Broadband Dipole Antenna (2090-02-03) ............................. 127 Tactical Tuned Wire Dipole Antenna (2090-02-01) ............................ 130 Mobile Installations ...................................................................................133 10 PRC-4090 System Docking Station Rear ......................................... 134 Assembly ........................................................................................... 135 SDS Feet Configurations .................................................................... 136 Handset Docking Station Configurations .......................................... 137 Complete Mobile Assembly ............................................................... 140 2019 Automatic Tuning Mobile HF Antenna ..................................... 145 2018 Mobile Magnetic Loop Antenna ............................................... 156 Base Station Installations ..........................................................................158 Assembly ........................................................................................... 159 Cooling Fan ...............................................................................................161 Installing the Cooling Fan ................................................................. 161 Connection Diagram ......................................................................... 162 Site Selection Recommendations ..................................................... 164 Antennas .......................................................................................... 166 912 Multi wire Broadband Dipoles.................................................... 166 4017 Automatic Tuning Horizontal Dipole Antenna .......................... 168 4011 Automatic Antenna Tuner for Base Station Installations .......... 171 Marine Installations ...................................................................................184 APPENDICES 8 ..................................................................................189 Appendix 1 - Specifications .......................................................................190 Appendix 2 - Connectors ...........................................................................194 Appendix 3 - Overview of HF Operation ....................................................212 Appendix 4 - BITE Test ..............................................................................216 Warranty Statement ..................................................................................219 Contact Details .................................................................................. 220 Index .........................................................................................................221 11 12 INTRODUCTION 1 This chapter contains the following sections:

Introduction Terms and Abbreviations The Barrett PRC-4090 HF Transceiver Overview 1 Introduction The Barrett PRC-4090 Tactical Transceiver is an SDR based HF SSB transceiver with a frequency range of 1.5 to 30 MHz in transmit and 250kHz -30MHz in receive. The Barrett PRC-4090 is designed using the latest technology enabling a physically small package with a full feature complement. Designed to operate in the most arduous environments, as encountered in port-

able, off-road vehicles, vessels and aircraft environs, the Barrett PRC-4090 will provide many years of efficient and trouble free service. The Barrett PRC-4090 supports features such as digital voice, data transmission and remote diagnostics as well as established features such as Selective Call

(Selcall), direct dial telephone connection to base stations fitted with telephone interconnect systems (Telcall), GPS location, 2G and 3G ALE (Automatic Link Establishment) and frequency hopping. These features make the Barrett PRC-

4090 HF Transceiver one of the most economical and versatile HF transceivers available today. Up to 1000 channels are available to be field or workshop programmable. Aux-

iliary features such as Selcall, Telcall, scanning, mute status, alarm system etc. can be individually enabled or disabled for every channel as required to suit your operation. The Barrett PRC-4090 Transceiver caters for increased use of HF data transmis-

sion for Internet email access and point-to-point data applications, by providing a comprehensive data modem interface port, high speed transmit-to-receive switching, a high stability frequency standard and an efficient cooling system option. The Barrett PRC-4090 is operated by a smartphone-style touchscreen, full col-

our Control Handset. The handset integrates seamlessly into manpack, vehicle and base station installations when used with the cradle and cradle docking station. The streamlined design and unobtrusive size easily mounts to a vehicle dashboard or vessel helm. The Barrett PRC-4090 Transceiver can be controlled from all major mobile and desktop platforms. Full remote control is available via the Barrett PRC-4090 Remote Control app, providing unprecedented access to all transceiver func-

tionality across all major platforms. Teamed with other matching Barrett products which include antennas, power supplies, vehicle tracking packages and HF modems, the Barrett PRC-4090 HF Transceiver becomes a powerful tool, providing solutions to many long distance communication requirements. 2 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Important Disclosure Please note that this manual describes all the features of the PRC-4090 HF SDR Transceiver and that some variants of the PRC-4090 may not have all the features installed. Illustrations may show accessories, optional equipment or other features which are not part of the standard specifica-

tion and are not available in individual countries. 3 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Terms & Abbreviations Term /

Abbreviation Definition ALE AM ARINC Automatic Link Establishment Amplitude Modulation A set of standards as established by Aeronautical Radio, Incorporated (ARINC). Call History A list containing details of the last thirty calls received. CCIR CF CW dB dBm DSP ESU FHSS GPS HF INT LCD LSB LUF MUF OEM OTG PCB PEP PIN PRC PSTN 4 One of many possible Selcall formats as defined by the Consultative Committee on International Radio (CCIR). Custom Filter selection Continuous Wave (used for Morse code) Decibels Power ratio in decibels (dB) of the measured power refer-

enced to one milliwatt (mW). Digital Signal Processing Encryption Synchronisation Unit Frequency Hopping Spread Spectrum Global Positioning System High Frequency International Selcall format Liquid Crystal Display Lower Sideband Lowest Usable Frequency Maximum Usable Frequency Original Equipment Manufacturer, OEM Selcall Format On-The-Go (USB) Printed Circuit Board Peak Envelope Power Personal Identification Number Portable Radio Communications Public Switched Telephone Network BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Term /

Abbreviation Definition PTT Push to talk Receive Only Channel A channel that receives calls but does not transmit calls. Revertive Tone /

Signal An acknowledgment signal automatically transmitted from a station receiving a Selcall. RF RFDS Scan Table Radio Frequency Royal Flying Doctor Service A list of channels used when scanning for incoming calls. Selcall Selective Calls SCF SDR SDS SSL Suppressed Carrier Frequency Software Defined Radio System Docking Station Signal Strength Level Station ID The ID of the station being called (the receiving stations Self ID). Self ID SMS SSB Telcall USB VSWR The programmed address identification number of a local station. (Used by other stations to call you.) Short Message Service Single Sideband (a transmission format) Telephone call using the Selective Call protocol. Upper Sideband Voltage Standing Wave Ratio 5 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION The Barrett PRC-4090 HF Transceiver Overview Manpack Configuration 3 4 5 6 7 8 9 ON EMERG. OFF Z 1 2 10 11 12 PRC-4090 HF SDR Transceiver (P/N 4090-00-01) PRC-4090 16Ah battery pack (P/N 4090-03-05) Earth stud Whip antenna connection 50 Ohm antenna connection LED status indicator On/Off, Emergency and Zeroise switch PRC-4090 Control Handset connector H250 Handset connector Battery isolator Battery indicator Battery charger connector 1 2 3 4 5 6 7 8 9 10 11 12 6 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Mobile Configuration (front) 4 5 6 87 9 10 ON EMERG. OFF Z 11 1 2 3 1 2 3 4 5 6 7 8 9 10 11 PRC-4090 HF SDR Transceiver (P/N 4090-00-01) PRC-4090 System Docking Station (P/N 4090-05-00) PRC-4090 Anti-vibration plate (P/N4090-05-07) Earth stud Whip antenna connection 50 Ohm antenna connection LED status indicator On/Off, Emergency and Zeroise switch PRC-4090 Control Handset connector H250 Handset connector RF Connector (from 50 Ohm output) 7 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Mobile Configuration (rear) 1 2 3 1 2 3 4 5 6 7 8 9 8 4 5 6 7 8 9 PRC-4090 Transceiver (P/N 4090-00-01) PRC-4090 System Docking Station (P/N 4090-05-00) PRC-4090 Anti-vibration plate (P/N 4090-05-07) Ground Coaxial connection (RF out) ATU Connector Aux. PRC-4090 Control Handset connector Ethernet connection (RJ45) DC in (+11 V to +28 V DC) BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Base Station Configuration (front) 4 5 6 87 9 10 ON EMERG. OFF Z 11 1 2 3 1 2 3 4 5 6 7 8 9 10 11 PRC-4090 Transceiver (P/N 4090-00-01) PRC-4090 System Docking Station (P/N 4090-05-00) PRC-4022 Power Supply (P/N 4090-06-01) Earth stud Whip antenna connection 50 Ohm antenna connection LED status indicator On/Off, Emergency and Zeroise switch PRC-4090 Control Handset connector H250 Handset connector RF Connector (from 50 Ohm output) 9 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Base Station Configuration (rear) 1 2 3 4 5 6 7 8 9 10 11 12 13 10 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION 1 2 3 4 5 6 7 8 9 10 11 12 13 PRC-4090 Transceiver (P/N 4090-00-01) PRC-4090 System Docking Station (P/N 4090-05-00) PRC-4022 Power Supply (P/N 4090-06-01) Ground Coaxial connection (RF out) ATU Aux. PRC-4090 Control Handset connector Ethernet connection DC in (+11 V to +28 V DC) DC out (24 V DC) Auxiliary out (13.8 V DC) AC in (100-240 V AC) Battery backup (13.8 V DC) 11 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Control Handset (Front) 1 2 3 4 5 1 2 3 4 5 PTT button Handset Speaker LCD Display Keypad Microphone 12 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Control Handset (Rear) 1 2 1 2 Hot-shoe connection to cradle and USB interface unit PTT Button 13 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Cradle and Handset Docking Station (rear) 1 2 3 4 5 6 7 8 External speaker (3W, 8 Ohm) External Speaker connection USB connection for WiFi adaptor or programming H-250 handset connection H-250 Handset Control Handset Docking Station (P/N 4090-05-03) Control Handset (P/N 4090-01-09) Connection to PRC-4090 Transceiver 14 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION Auxiliary Cables 6 5 6 7 5 OR 1 2 3 4 1 2 3 4 5 6 7 Hotshoe cable (unterminated) (P/N 4090-01-34) Hotshoe adapter cable to USB male (P/N 4090-01-32) Hotshoe adapter cable to GPS or CW key (P/N 4090-01-31) 3 port accessory hub (P/N 4090-01-39) GPS adaptor (P/N 2090-01-24) CW Key (P/N 2090-01-07) USB connection 15 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION 16 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INTRODUCTION BASIC OPERATION 2 This chapter contains the following sections:

Starting the Transceiver Display Antenna Type Channel Selection Receiving and Transmitting -Voice Call Making an Emergency Call 17 Starting the Transceiver Ensure the transceiver is attached to a power source appropriate for your sit-

uation. Turn the switch from the off position to the on position. Reverse the procedure to power off. LED status:

Power on: Constant green Emergency call: Flashing green (rapid flashing green when transmitting) Zeroise: Flashing red, then solid when complete Lift and turn the switch to initiate an emergency broadcast (page 27) or to zeroise the transceiver

(see page 108). Keypad There are seven keys on the keypad. Some keys have multiple functions assigned to them depending on when or how long the key is pressed. Key Function Key Function Channel Up /

Scroll up Channel Down /

Scroll down Scroll left and right Enter /

Set a menu item Make a call Clear /

Back one step Volume Up Volume Down 18 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Display 2 3 4 5 1 17 16 15 13 14 12 11 9 8 7 1 2 3 4 5 6 7 8 9 Tune Status Date and Time ALE Status Digital Voice/Secure Digital Voice Status Indicators

(see page 20) Operation icons (see page 20) ALE (Channel) Status Selcall Network Transmit Power 6 10 11 12 13 14 15 16 17 Modulation Mode Receive/transmit status Receive Strength/Transmit Power Indicator Swipe Menu Access Channel Label Channel Frequency Channel Number ALE 3G Sync status 19 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Status Indicators Access Point GPS WiFi Client USB Storage Low Voltage Missed Call Screen Lock Ethernet Busy Networked RS232 Battery charge A number on the WiFi Client icon or the Networked RS232 icon indicates the number of connections currently made to that device. Operation Icons Cycles through low, med, high or no noise reduction. Toggles mute on/off. See page 88 for further mute details. Enables/disables scanning. Toggles Digital Voice or Secure Digital Voice encoding on or off (if fitted). Opens the channel select menu. Manually tunes the antenna. Enables/disables Frequency Hopping (if fitted). 20 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Swipe Menu To access this menu, either swipe horizontally across the screen from the left edge to drag open the swipe menu or press and hold the right arrow key. The icons (other than Settings) appear green when enabled and white if disabled. Accessing the Swipe Menu 21 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Swipe Menu 1 3 5 2 4 6 1 2 3 4 5 6 7 8 Modem Select - Tap to enable internal modem for data use Stealth Mode - When active, all lights and sounds are disabled Status Information - Displays IDs and mechanical information Settings Menu - Access to Settings menus GPS Push (if fitted) or Display Settings DV Baud Rate - Quick access to Digital Voice Baud Rate settings ALE Menu - Quick access to ALE menu Antenna Select - Quick access to antenna select menu The items displayed in the Swipe menu are determined by the options installed in the transceiver. Each of the Modem, Stealth Mode and GPS Push icons will turn green when active. 22 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Status Info The Status Info menu displays important information about the transceiver and the network. It can be accessed from the Swipe Menu. It displays the following:

Power: Receive and transmit voltage use, transceiver internal temperature and cur-

rent draw. Battery: If in Manpack Configuration, this line will display the time until battery needs to be charged, or if charging, the time until battery is fully charged as well as the charging current. GPS Position: The current GPS position of the transceiver (if acquired). IP Address: The IP address of the trans-

ceiver (if connected to an IP network). Selcall ID: The primary four and six digit selcall IDs of the transceiver. ALE 2G Self ID: The Self ID of the trans-

ceiver in an ALE 2G network (optional) ALE 3G Self ID: The Self ID of the trans-

ceiver in an ALE 3G network (optional) When charging battery:

When not charging battery:

23 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION

5. With the side latches folded outwards, place the PRC-4090 transceiver on top of the SDS so that the locating feet meet their corresponding holes. 6. Fold the side latches back into position and turn the fasteners to secure. 158 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

Cooling Fan The cooling fan is an optional extra which may be added to the PRC-4090 trans-

ceiver for situations where high volumes of data or Digital Voice transmissions may cause the transceivers internal temperature to rise above 65oC. The cooling fan requires no user input as it is temperature controlled by soft-

ware, automatically activating when necessary. Installing the Cooling Fan Attach the cooling fan to the transceiver by carefully aligning the connector pins located beneath the cooling fan with the socket on top of the transceiver as shown below. Four screws (located in the four corners of the cooling fan) are used to secure the cooling fan to the SDR. To uninstall the cooling fan, reverse the installation procedure. 159 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Connection Diagram 3 5 1 6 12 12 1 2 160 7 4 8 9 11 _

+12 V DC 10 7 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 1 2 3 4 5 Barrett PRC-4090 HF SDR Transceiver (P/N 4090-00-01) and System Docking Station (P/N 4090-05-00) PRC-4022 AC Power Supply (P/N 4090-06-01) PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) IP Network connection via RJ45 cable Coaxial cable 6 Antenna Power cable from Barrett PRC-4090 SDS to PRC-4022 Power Supply

(P/N 4090-03-02) IEC mains cord (P/N SA-00020) In-line Fuse 7 8 9 10 12 V (or 24 V) DC Battery 11 3 metre battery back-up cable for PRC-4022 Power Supply (P/N 4090-

06-08) 12 Ground (earth) 161 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Site Selection Recommendations The success of every HF Radio system is primarily measured by its ability to receive weak signals and to transmit RF power efficiently. A number of impor-

tant factors need to be considered to achieve success. These include: frequency selection, time of day and ambient noise at the receiver site. Frequency and time of day are factors which can be used to calculate the maximum usable frequency (MUF) and lowest usable frequency (LUF) using prediction software freely available on the internet. A typical example of this is VOACAP, http://

www.voacap.com/prediction.html Site selection and system design go hand in hand and should be considered before any equipment is purchased. Forcing the radio system into an unsuitable site will undoubtedly result in disappointing if not unworkable performance of the system. Little can be done to improve an installed system if, for example, the ambient RF noise is unacceptably high. It is recommended that site evaluation be done before any system designs are finalised to avoid system performance disappointment. The following should be considered when choosing a position for the trans-

ceiver:

Operating Convenience The transceiver should be placed so that the operator is comfortable and any required facilities are easily accessible. Air Circulation The PRC-4090 relies on air flow around cooling fins to dissipate heat generated by the transmitter. The mounting position must allow free air flow around these fins. Proximity of Transceiver to Antenna When using RG-58 coaxial cable from the transceiver to the antenna, a cable length of no more than 30 metres is recommended. Should a run of more than 30 metres be required, it is recommended that a low loss coax such as RG-213 or RG-8 be used. It is recommended that the transceiver chassis is connected to ground (earth) using the post on the rear panel to stop pick-up of unwanted noise from local power supplies and electrical equipment. 162 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Power Supply When 24 V DC is supplied to the PRC-4090 transceiver, the PEP Voice output power will achieve 150 W. This is only available with the PRC-4090 System Docking Station. Power output regulation is performed automatically based on the DC voltage presented to the transceiver DC input connector. The Barrett 4022 Power Sup-

ply is available in the BC402201 (24 V DC) version. This power supply version is capable of operation with AC mains input voltage between 88 and 256 V AC. In base station installations where no mains supply is available, various Barrett solar power supply solutions are available depending on the system configura-

tion requirement. Note: Some installations use an AC battery charger to float charge the supply bat-

tery. Battery chargers can produce electrical noise from the rectifier diodes. This noise causes a static type of interference in the receiver. It may be necessary, there-

fore, to switch off the battery charger whilst the transceiver is in use. If float charg-

ing of batteries is required for installations with unreliable AC power supply, it is recommended that BC402201 be used as it provides a three stage charge facility to maintain a battery without the noise problem described above. Voltage Drop The average current consumption of the transceiver is low but during transmis-

sion of voice peaks, high current is needed for short intervals. This means that the power supply cable must be heavy enough to supply these short duration current peaks without excessive voltage drop. Preferably, only use the power cable supplied with the transceiver. If extra cable is required, use a cable with a conductor square area of no less than 8 mm2. Unwanted voltage drop will also occur if incorrect wiring techniques such as poor choice of connection points and incorrect use of terminal lugs are used. Protection Fuse The transceiver is provided with adequate internal protection from over-current or short-circuit. The fitting of an additional external fuse is still considered nec-

essary for both the protection of the transceiver and to ensure that in the event of damage to the cable, a fire does not occur. The fuse used must be installed in the active wire as close as possible to the battery, and must be of a type which has a low voltage drop at the peak currents expected. Note: In-line 3AG glass fuses are not suitable. An ATC automotive blade type fuse rated at 25 A with a suitable high current ATC fuse holder rated at 30 A or more should be used. These type of fuses and holders are contained in our standard instal-

lation kit (P/N BCA40004) or are available individually (P/N BCA20021). 163 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Antennas The antenna is a most critical part of the complete transceiver installation. It must accept the output power from the transmitter, radiate that power with minimum loss and in the receive mode, accept weak signals for input to the receiver. Incorrect antenna installations will yield poor system performance and are often the cause of complaints of poor transceiver performance. A range of antennas is available from Barrett to suit most small fixed stations. Detailed instructions are included with each antenna. 912 Multi wire Broadband Dipoles

(P/N BC91200, BC91202 and BC91203) Barrett 912 broadband dipoles are ideal for base stations that require operation on multiple frequencies throughout the HF spectrum using a single antenna. 164 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION The Barrett 912 antenna can be mounted either in a horizontal or inverted V configuration as illustrated in the following diagrams. In the horizontal con-

figuration, the major radiation direction is broadside to the antenna. When mounted in the inverted V configuration, the antenna becomes fairly omni-di-

rectional. In the horizontal configuration, the minimum distance between the masts is 32 metres and the recommended mast height is 15 metres. In the inverted V configuration the recommended mast height is 15 metres and at this height the 2 metre stub masts are each installed at a minimum of 19 metres from the mast base. In this configuration the mast must have an offset or out-rigger bracket, at least 0.8 metres long, to hold the antenna away from the mast. Support towers may be either lattice masts as illustrated, tubular telomasts or other support structures that may be available locally. It is recom-

mended that the halyards used to support the antenna be either UV stabilised Dacron cord or wire rope and that pulleys should be of stainless steel construc-

tion. Install the antenna as illustrated in the diagrams, in the inverted V configura-

tion the eye on the top of the balun is used to attach the support halyard. In the horizontal configuration the balun hangs below the antenna. As with all antenna installations ensure the antenna is as far from sources of electrical interference as possible and in a position that makes it impossible for the antenna to come in contact with high voltage overhead mains wiring. 165 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 912 Multi-wire broadband dipole antenna - 1Kw (27M/54M) (P/N BC91203/BC91207) 4047 Automatic Tuning Horizontal Dipole Antenna The Barrett 4047 Automatic Tuning Horizontal Dipole Antenna is designed for conditions where area is limited but a high performance base station antenna is still required. It consists of composite radiation elements driven by an auto-

matic antenna tuner to allow operation from 3 to 30 MHz. The tuner provides broadband impedance matching during scan mode (receive) operation, for reli-

able link establishment using modern radio protocols. The antenna is designed for operation on a 6 to 10 metre standard 50 mm mast making it simple to install. With a packed length of 2.1 metres the antenna can be easily transported by air. Assembly fixtures are supplied to assist in mounting the antenna to an existing mast, tower or pole. Alternatively, a range of suitable masts can be supplied with the antenna. The tuner has a memory system that stores tuning information for each channel after an initial tune sequence with unlimited capacity. For further information regarding the 4047 Automatic Tuning Horizontal Dipole Antenna, please consult the 4047 Automatic Tuning Horizontal Dipole Antenna User Manual (P/N BCM404700). 166 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Connection Details for a PRC-4090 Transceiver and 4047 Automatic Tuning Horizontal Dipole Antenna 3 1 5 4 1 2 12 12 7 6 7 8 11 _

+12 V DC 10 9 Barrett PRC-4090 HF SDR Transceiver (P/N 4090-00-01) and System Docking Station (P/N 4090-05-00) PRC-4022 AC Power Supply (P/N 4090-06-01) 1 2 167 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 3 4 5 6 7 8 9 PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) 4047 Tactical HF ATU base antenna (P/N 4047-00-01) Coaxial / Control Cable (P/N 4017-01-01) IP Network via RJ45 cable IEC Mains cable (P/N SA-00020) Circuit breaker Power cable from Barrett PRC-4090 SDS to PRC-4022 Power Supply

(P/N 4090-03-02) 10 12 V (or 24 V) DC Battery 11 3 metre battery back-up cable for PRC-4022 Power Supply (P/N 4090-

06-08) 12 Ground (Earth) 168 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 4045 Automatic Antenna Tuner for Base Station Installations Antennas such as long-wires, vertical whips and loop configurations require an Antenna Tuning Unit to operate correctly. Housed in a fully weatherproof enclosure, the 4045 will tune long wire anten-

nas effectively up to a length of 10 metres and wire loop antennas or whip antennas over a frequency range of 2 to 30 MHz. Tuning is rapid, typically less than one second the first time RF is applied, either whilst the operator is talking or when the Tune control is activated on the transceiver (see page 107). The 4045 tuner features a memory facility that stores the configuration required to tune to a frequency. On any subsequent use of that frequency, the 4045 reconfigures to the stored settings in typically less than 130 milliseconds. Fol-

lowing initial tuning, the antennas VSWR is monitored. If any significant varia-

tion occurs, the 4045 will re-tune the antenna automatically. The 4045 is supplied complete with coaxial / control cable having an overall length of 30 metres (P/N 4017-01-01). The cable is a composite design incorpo-

rating coaxial, power supply and control cables. Antenna The following points should be considered when mounting an antenna with the 4045:

The antenna should be mounted as far away as possible from buildings, trees, vegetation and sources of electrical interference. If metallic masts or supports are used, arrange insulators to ensure the antenna is spaced at least two metres from the mast. The radiating part of the antenna starts at the tuner. The base of the antenna should be centrally located as per above criteria. High voltages are present on the antenna system. The antenna tuner and antenna should be located or protected so that there is no possibility of accidental contact or danger of RF burns. Transceiver and Tuner Mounting The transceiver should be mounted in a suitable position allowing easy operator access. The antenna tuner should be mounted, preferably out of the weather, and as close to the ground (earth) point as possible. The interconnect cable sup-

plied with the antenna tuner should be routed, away from other cables, back to the transceiver and connected as indicated in the diagram. The maximum interconnect cable should be less than 25 metres. 169 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Ground (Earth) System The ground (earth) system is a key part of the overall antenna system and con-

sequently the system operation. An inadequate ground (earth) system is the pri-

mary cause of poor performance and tuning problems. Unless a good ground

(earth) system (counterpoise) can be provided, there is little point in installing the antenna. In areas of good ground (earth) conductivity (i.e. the terrain is always damp), an effective ground (earth) can be made through a grounding

(earthing) rod. This should be a minimum 1.5 metres in length and should be installed as close to the tuner as possible. A suitable grounding (earthing) can be purchased from Barrett Communications (P/N BCA90056). Several rods bonded together will improve the ground (earth) contact. In some cases metal water pipes may be used as a ground (earth) providing:

The water pipe is close to the tuner and the water pipe enters the ground close to the tuner. There are no joints or couplings in the pipe that will increase the resist-

ance path to ground. The water pipe enters soil with good conductivity. A low resistance joint is made with the water pipe. Frequently the ground (earth) conductivity will not be sufficient to provide a satisfactory ground (earth) for the Barrett 4045 tuner. This will almost certainly be the case in well drained sandy soils or on rock. In these cases, a counterpoise must be used as a ground (earth) system. This will also be the case in rooftop installations where no existing ground plate (such as metal roofing) exists. The number of radials required for an effective counterpoise depends on the soil quality, dampness and other factors which affect the conductivity of the soil. The more radials used, the better will be the performance of the antenna/ATU combination especially at lower frequencies. This manual suggests a minimum of 20 radials, but optimum performance at low frequencies is not guaranteed. The radials of the counterpoise need only be of much thinner cable i.e. 5.48mm2

(#1 #2 SWG) preferably copper wire. RG58 Coaxial cable may be used. At the base of the antenna, the radials all couple together at a common well bonded antenna ground (earth) point. The radials should be buried into the ground to a minimum of 200 mm depth. Note: To accomplish reliable ATU tunes at frequencies below 5 MHz, it is not uncom-

mon, with poor conductive soil conditions, to require up to 120 radials each of up to 70 m length, requiring thousands of metres of cable and a lot of trenching. This is impractical and is the reason we do NOT recommend Whip/ATU antenna for land based systems. 170 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Electrical Checkout After mechanical installation is complete, select the highest frequency to be used on the transceiver. A directional watt-meter may be inserted in the coaxial transmission line between the transceiver and the tuner, although the inter-

nal metering of the Barrett PRC-4090 Transceiver is accurate. The tune mode on the transceiver is then energised. Upon application of RF energy, the tuner should start to tune, indicated by the clattering of the tuner relays. After a few seconds the relay noise will cease, the transceiver should indicate Tune OK and the watt-meter and PRC-4090 handset should show a low value reflected power consistent with a VSWR of better than 2:1. Select the lowest desired frequency on the transceiver and repeat the above procedure. The result should be the same, except that the tune cycle may take somewhat longer. If the above procedure does not give the results indicated, check that the antenna length and connections are correct and re-check all ground (earth) connections. Note: When received, the Barrett 4045 automatic antenna tuner memory system will not have any pre-stored tuning information appropriate to your installation. To allow the 4045 to learn its tuning information, simply proceed from one channel to the next allowing the normal tune cycle to take place. Each successful tune is mem-

orised so that when that channel is re-selected the tuner will almost instantaneously retune to that frequency. 171 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Connection Details for a PRC-4090 Transceiver and 4045 Automatic Antenna Tuner in a Base Station Configuration 5 14 3 1 6 1 2 13 13 4 13 7 7 9 11 12 _

+12 V DC 10 8 172 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Barrett PRC-4090 HF SDR Transceiver (P/N 4090-00-01) and System Docking Station (P/N 4090-05-00) PRC-4022 AC Power Supply (P/N 4090-06-01) PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) Barrett 4045 Automatic Antenna Tuner (P/N 4045-00-01) 1 2 3 4 5 Antenna 6 7 8 9 Coaxial / Control Cable (P/N 4019-00-02) IP Network Connection via RJ45 cable Power cable from Barrett PRC-4090 SDS to PRC-4022 Power Supply

(P/N 4090-03-02) IEC mains cord (P/N SA-00020) 10 12 V (or 24 V) DC Battery 11 Circuit breaker 12 3 metre battery back-up cable for PRC-4022 Power Supply (P/N 4090-

06-08) 13 Ground (Earth) 14 Antenna Feeder Cable 173 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Connection Details for a PRC-4090 and a Military Whip Installation 11 3 5 12 11 4 1 11 6 9 7 _

+12 V DC 10 7 2 8 174 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 1 2 3 4 5 6 7 8 9 10 11 12 Barrett PRC-4090 HF SDR Transceiver (P/N 4090-00-01) Barrett PRC-4090 System Docking Station (P/N 4090-05-00) and Anti-Vibration Mount (P/N 4090-05-07) PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) Barrett 4045 Automatic Antenna Tuner (P/N 4045-00-01) Military HF antenna and base sourced from Trival Antene (P/N AP4/M) and whip sections (P/N AD-4/1-3) Coaxial / control cable (P/N 4019-00-02) IP Network Connection via RJ45 cable DC power cable to Battery (P/N 4090-03-06) Circuit breaker 12 V (or 24 V) DC Battery Cable from 4045 Automatic Antenna Tuner to military whip (P/N 4019-00-02) Ground (earth) 175 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Broadband Dipole Antenna (2090-02-03) The Tactical Broadband Dipole Antenna is a dipole antenna with loading to allow broadband operation. For operation, each side of the antenna is unwound to its full length. Throwing cords are pro-

vided that can be used to elevate the antenna or tie it to ground for an inverted V configuration. The antenna will handle continuous data and CW transmission. The antenna can be used in a number of configurations, depending on structures available for elevation. Tactical Broadband Dipole Antenna Configurations Horizontal Dipole The horizontal dipole has maximum gain on the broadsides of the antenna and reduced gain along the axis. Height above ground affects radiation angle. Lower heights give higher angle radiation, better for NVIS (short distance). Higher heights give lower radiation angle, better for long distance communication. 176 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Inverted V The inverted-V has a more omni-directional pattern than the Horizontal Dipole, with lower maximum gain. The ends of the antenna should be at least 0.5 m above ground. Suitable mainly for NVIS and medium distance. Sloping Dipole Radiation with the Sloping Dipole becomes more directional, with increased gain in the direction of the lower end of the antenna, and reduced gain towards the higher end. 177 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Inverted U The inverted U has a radiation pattern between that of horizontal dipole and inverted V. For optimum performance, the radiating elements should be fully unwound, and should not touch the ground. Suitable for NVIS to medium dis-

tance. Longer distance performance will be enhanced by erecting the antenna at a height of 10 m or more. 178 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Tuned Wire Dipole Antenna (2090-02-01) The Tactical Tuned Dipole Antenna is a tuned antenna with frequency labels to indicate tuned lengths. For operation, each side of the antenna is unwound to the tuned length for the frequency required. For operation at a labelled frequency, the label should be level with the end of the winder as shown in the picture below. Lengths for intermediate fre-

quencies should be estimated and tied off appropriately. The remaining wire remains on the winder. The throwing cord can then be used to elevate the antenna. The antenna will handle 100 W continuous data and CW trans-

mission. The antenna can be used in a number of configurations, depending on structures available for elevation. z h M 3 1 z h M 9 z h M 6 z h M 8 Tactical Tuned Wire Dipole Antenna Configurations Horizontal Dipole The horizontal dipole has maximum gain on the broadsides of the antenna, and reduced gain along the axis. Height above ground affects radiation angle. Lower heights give higher angle radiation, better for NVIS (short distance). Higher heights give lower radiation angle, better for long distance communi-

cation. 18Mhz 20Mhz 11Mhz 18Mhz 20Mhz 11Mhz 179 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Inverted V The inverted-V has a more omni-directional pattern than the Horizontal Dipole, with lower maximum gain. The ends of the antenna should be at least 1 m above ground. Suitable mainly for NVIS and medium distance. 2 0Mh z 1 8Mh z 1 1Mh z z h M 1 1 z h M 8 1 z h M 0 2 Sloping Dipole Radiation with the Sloping Dipole becomes somewhat asymmetrical, with increased gain in the direction of the lower end of the antenna, and reduced gain towards the higher end. 2 0Mh z 1 8Mh z 11Mhz 20Mhz 18Mhz 11Mhz 180 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Single Ended For rapid deployment, with reduced but still acceptable efficiency, the antenna can be operated single ended. In this configuration, one side of the antenna

(labelled antenna) is unwound to the desired frequency and tied to an ele-

vated structure. The central balun should be located close to the ground, and the remaining side of the antenna (earth) partly unwound (5 to 10m) and stretched out on the ground below the radiating element. 20Mhz 18Mhz 11Mhz 18Mhz 20Mhz 11Mhz 181 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Marine Installations The Barrett 4045 automatic antenna tuner is designed for use in land base station and maritime HF services. Primarily designed for operation with end-

fed unbalanced antennas such as whips and long wires, the tuner is built in a waterproof impact resistant, moulded ABS plastic enclosure. Antenna Selection The 4045 automatic antenna tuner will operate into almost any end-fed antenna with a length exceeding 2.5 metres, providing an effective ground

(earth) is used. The antenna efficiency will be proportional to the length of the antenna and will be maximum when the length of the antenna approaches wavelength. It is advisable to limit the wire antenna to or wavelength at the highest frequency to be used. Antenna On sailing vessels the antenna can either be an insulated backstay or a whip antenna mounted vertically, usually on the stern. Best performance will be achieved by using an insulated backstay as the radiating length will be longer than that available when using a whip. The top insulator on the backstay should be approximately 300 mm from the mast and the bottom insulator should be at eye level above the deck. The distance between insulators should be greater than 10 metres and less than 35 metres. A whip antenna is generally used on small to medium sized power vessels. There are different length whips to suit the vessel length. Transceiver and Tuner Mounting Select a suitable position in the vessel to mount the transceiver. It should be a position that is out of the weather and easily accessible to the operator, whilst as close as practical to the 13.8 V DC power source. Mount the transceiver to a solid fixing point using the mounting cradle. Make sure there is sufficient space at the rear of the transceiver to connect the power and antenna cables. The antenna tuner should be mounted as close to the antenna feed point as possible. In metal vessels the length of the feeder from the antenna tuner to the feed-through insulator, inside the vessel, should be kept less than 1 metre. The antenna feed cable should be a suitable high voltage cable. Care should be taken to avoid sharp points when terminating the cable to prevent corona discharges. The interconnect cable supplied with the antenna tuner should be routed away from other cables back to the transceiver and connected as indicated in the diagram on page 185. 182 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Ground (Earth) System The ground (earth) system is a key part of the overall antenna system and con-

sequently the system operation. An inadequate ground (earth) system is the primary cause of poor performance and tuning problems. There is little point in installing the antenna unless a good ground (earth) system or counterpoise can be provided. Metal hulled vessels provide an almost perfect ground (earth). The tuner ground

(earth) terminal should be connected directly to the hull using the shortest possible ground (earth) strap. The point of connection to the hull should be prepared so that it is free of paint and rust to ensure a good contact area with minimum electrical resistance. Wooden or fibreglass vessels present more of a problem to ground (counter-

poise). Ideally the vessel should be fitted with an external copper ground (earth) sheet, connected to the interior of the vessel by suitable stud or an ground

(earth) plate (E plate Barrett P/N BCA91700) Should neither of these methods be available it will be necessary to bond as many large metallic objects, such as the engine and propeller shaft, together to form a ground (earth). Whichever method is used the ground (earth) run from the ground (earth) plate to the antenna tuner should be as short as possible and use copper strap at least 50 mm wide (wider if available). Consideration must always be given to the problem of electrolysis. Severe structural damage may occur if electrolysis is present. Consult your maritime experts for more information concerning elec-

trolysis. Corrosion All connections in marine situations are subject to corrosion and oxidation. To minimise this all joints should be cleaned and have silicon grease applied before assembly. Under severe conditions joints should be protected with self vulcan-

ising rubber tape. Electrical Checkout After mechanical installation is complete, select the highest frequency to be used on the transceiver. A directional watt-meter may be inserted in the coaxial transmission line between the transceiver and the tuner, if desired, although the internal tuner of the PRC-4090 transceiver is accurate. The tune mode on the transceiver is then activated (see page 107). Upon application of RF energy, the tuner should start to tune, indicated by the clattering of the tuner relays. After a few seconds the relay noise will cease. The transceiver should indicate Tune OK and the watt-meter reflected power should indicate a low value con-

sistent with a VSWR of better than 2:1. Select the lowest desired frequency on 183 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION the transceiver and repeat the above procedure. The result should be the same, except that the tune cycle may take longer. If the above procedure does not give the results as indicated, check that the antenna length and connections are correct and re-check all ground (earth) connections. Note: When received, the Barrett 911 automatic antenna tuner memory system will usually not have any pre-stored tuning information appropriate to your installation. To allow the 911 to learn its tuning information simply proceed from one channel to the next allowing the normal tune cycle to take place. Each successful tune is memorised so that when that channel is re-selected, the tuner will almost instan-

taneously retune to that frequency. 184 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Connection Details For a PRC-4090 Transceiver and 4045 Auto-

matic Antenna Tuner in a Marine Installation 13 OR 3 3 4 14 12 5 3 1 11 11 6 9 _

+12 V DC 10 7 2 8 7 185 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 1 2 3 4 5 6 7 8 9 Barrett PRC-4090 HF SDR Transceiver (P/N 4090-00-01) Barrett PRC-4090 System Docking Station (P/N 4090-05-00) and Anti-Vibration Mount (P/N 4090-05-07) PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) Barrett 4045 Automatic Antenna Tuner (P/N BC404500) Antenna Feeder Cable Coaxial / Control Cable Extension (P/N 2019-00-06) IP Network Connection via RJ45 cable 6 metre power cable supplied with transceiver (P/N 4019-00-02) Circuit Breaker 10 12 V (or 24 V) DC Battery 11 Ground (earth) 12 Feed-through Insulator (P/N BCA91701) 13 Marine Whip Antenna 14 Back stay antenna or longwire antenna 186 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION APPENDICES 8 This chapter contains the following sections:

Appendix 1- Specifications Appendix 2 - Connectors Appendix 3 - Overview of HF Operation Appendix 4 - BITE Test 187 Appendix 1 - Specifications General Transmit frequency range 1.5 MHz to 30 MHz (reduced performance below 1.6MHz) Receive frequency range 250 kHz to 30 MHz Frequency stability 10Hz 0.1PPM over temperature range of -30C to

+70C (0.5PPM if ESU not ready) Frequency resolution 10Hz: Program Mode 1Hz: Tunable Receiver Operating modes J3E (USB, LSB) - H3E (AM) - J2A (CW) - CF (Custom Filter) - ISB (data option) Filter bandwidth Fully software defined standard and custom filter range from 300Hz to 3000Hz (6kHz ISB option) Operating temperature Frequency hopping

-30C to +70C relative humidity 95% , non-condensing Barrett HF Frequency Hopping algorithms - 25 or 5 hops per second with External Synchronisation Unit (ESU) sup-

plied when the option is fitted. Improved internal clock to maintain clock synch without GPS signal for extended periods in the field (Minimum 48 hrs w/o GPS Signal) Selcall system Based on CCIR 493-4, four and six digit systems. Simple mode for a single radio ID. Expanded mode to allow for multiple Selcall IDs. Option: ICAO Annex 10 Selcall Encode (ARINC). MIL-STD-188-141B (2G) JITC Certified, FED STD 1045 MIL-STD-188-141B Appendix C (3G), STANAG 4538 ALE Standards

(options) 188 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Digital Voice Encryption Enhanced Digital Voice and Secure Digital Voice options with choice of autobauding Low Rate vocoder option

(TWELP/MELP Non-proprietary - customisation availa-

ble) providing superior voice recovery on poor channels down to -3dB.

- AES 256 Digital Encryption with 600/1200/2400bps Vocoder

- DES 56 Digital Encryption with 700/1200/2400bps Vocoder Security Zeroise, Over Air Transceiver Lock, Transceiver Kill User Interface LCD Display Current consumption Ruggedised touch screen and keypad (VFO control in RX/

TX Scroll). 4.3 inch 800 x 480 pixel display with capacitive touch-

screen 350 mA standby (muted) Channel capacity 1000 programmable channels Contact Capacity 500 contacts Scan Tables 10 scan tables Noise Reduction

(DSP) 3 level settings Nominal Voltage

+13.8VDC, Negative Ground Operating Voltage Range Over Voltage Pro-

tection Reverse Voltage Protection

+11 V to +28 V DC operation Up to 35V Built in Weight Width Depth Height 3.10 kg (transceiver only) 241 mm (transceiver only) 331 mm (transceiver only) 53 mm (transceiver only) 189 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES Receiver Sensitivity

(250kHz -

30MHz)

-126dBm (0.112V) for 10dB SINAD J3E Mode

(Specification typical across frequency band, reduced sen-

sitivity between 250kHz and 500kHz) Selectivity J3E

-1kHz and +4kHz: Better than 70dB

-2kHz and +5kHz: Better than 70dB

-5kHz and +8kHz: Better than 75dB

-500Hz and +500Hz: Better than 60dB Max usable sensitivity -20kHz and +20kHz: better than 95dB Better than 110 dBV Better than 95 dB Better than 110 dBV (As defined in ITU-R F.612) Selectivity J2B

(option) Blocking Intermodulation Distortion Spurious response ratio Reciprocal mixing In-band IMD Better than 40 dB Audio output 4 W into 4 ohm at less than 2% distortion Audio response

-6dB for 300Hz to 2700 Hz (adjustable bandwidth) 6.5 mW into a 1 k ohm load 1.5 dB, with a 1 kHz tone. SDS configuration: 150W, 125W, 30W, 10W PEP 1.5dB (2 tone or voice) Manpack configuration: 30W, 10W PEP 1.5dB (2 tone or voice) 100% 2 tone input with fan option (-30C to +50C relative humidity 95%, non-condensing) Safe under all load conditions, thermal protection against excessive power transistor temperatures Handset Audio -

Output Max Transmitter Power Output Duty cycle Protection 190 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Intermodulation Products Better than 32dB below PEP (26dB below two-tone peak) Current Draw 10W: 4.5A (1 tone), 3.5A (2 tone) Transmit 13.8VDC 30W: 8.5A (1 tone), 6A (2 tone) 125W: 23.5 (1 tone), 20.5A (2 tone) 150W: 24.5 (1 tone), 20.5A (2 tone) Current Draw 10W: 4.0A (1 tone), 3.5A (2 tone) Transmit 15VDC 30W: 7.5A (1 tone), 5.5A (2 tone) 125W: 23.5A (1 tone), 18.5A (2 tone) 150W: 23.5A (1 tone), 17.5A (2 tone) Current Draw 10W: 3.5A (1 tone), 3.0A (2 tone) Transmit 24VDC 30W: 5.5A (1 tone), 3.5A (2 tone) 125W: 15.5A (1 tone), 11.5A (2 tone) 150W: 15.5A (1 tone), 11.5A (2 tone) Specifications are typical. Equipment descriptions and specifications are subject to change without notice or obligation. 191 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES Appendix 2 - Connectors 1 4 Transceiver ON EMERG. OFF Z 3 1. Auxiliary Connector 2 5 PIN Signal 1 2 CW Key 1 Pulse per Second 3 GPS data NMEA format 4 +5V Out 5 6 7 8 9 13V8 Out Scan Stop Balanced Audio Out Positive Balanced Audio Out Negative PTT Out 10 Ground 11 Auxiliary Power Enable 12 Auxiliary Line In Positive 13 Auxiliary Line In Negative 14 Auxiliary Digital Out 1 15 Auxiliary Digital Out 2 192 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES PIN Signal 16 Mute State 17 USB Data Positive 18 USB Data Negative 19 +5 USB 20 Auxiliary PTT 21 Auxiliary Digital In 2. Control Handset Connector PIN Signal 1 Ground 2 Handset Voltage 3 4 CAN Bus positive CAN Bus Negative 5 Handset Audio Positive 6 Handset Audio Negative 7 8 9 Ethernet TX Data positive Ethernet TX Data negative Ethernet RX Data positive 193 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES PIN Signal 10 Ethernet RX Data negative 11 Handset GPS 1 Pulse per Second 12 Reserved 13 Reserved 14 Reserved 15 Reserved 16 Reserved 3. H-250 Handset Connector PIN Signal A H250 Handset Ground B H250 Speaker output C H250 PTT D H250 Microphone E Reserved F Reserved 194 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES 4. Power Connector PIN Signal 1 2 3 4 5 6 Input Voltage Input Voltage Input Voltage RS232 Transmit Input Voltage RS232 Receive 7 Ground 8 Ground 9 Ground 10 Ground 195 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES 5. SDS Connector PIN Signal 1 Handset Voltage 2 Handset GPS 1 Pulse per Second 3 4 5 6 CAN Bus positive CAN Bus Negative External GPS 1 Pulse per Second Reserved 7 Handset Audio Negative 8 Handset Audio Positive 9 Ground 10 Ground 11 SDS Voltage Enable 12 SDS Voltage Enable 13 External ATU Voltage 14 External ATU Scan signal 15 External ATU Tuned signal 16 SDS Detect 196 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES PIN Signal 17 Ethernet TX Data positive 18 Ethernet TX Data negative 19 Ethernet RX Data positive 20 Ethernet RX Data negative 197 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES Battery Pack 1 2 1. Power Connector PIN Signal 1 2 3 4 5 6 Input Voltage Input Voltage Input Voltage Battery communication Transmit Input Voltage Battery communication Clock 7 Ground 8 Ground 9 Ground 10 Ground 198 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES 2. DC In PIN Description A DC Positive B DC Positive C DC Negative D DC Negative 199 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES System Docking Station (SDS) 3 4 5 1. Power Connector 1 2 PIN Signal 1 2 3 4 5 6 Input Voltage Input Voltage Input Voltage RS232 Transmit Input Voltage RS232 Receive 7 Ground 8 Ground 9 Ground 10 Ground 200 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES 2. SDS Connector PIN Signal 1 Handset Voltage 2 Handset GPS 1 Pulse per Second 3 4 5 6 CAN Bus positive CAN Bus Negative External GPS 1 Pulse per Second Reserved 7 Handset Audio Negative 8 Handset Audio Positive 9 Ground 10 Ground 11 SDS Voltage Enable 12 SDS Voltage Enable 13 External ATU Voltage 14 External ATU Scan signal 15 External ATU Tuned signal 16 SDS Detect 201 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES PIN Signal 17 Ethernet TX Data positive 18 Ethernet TX Data negative 19 Ethernet RX Data positive 20 Ethernet RX Data negative 3. ATU Connector PIN Signal A Ground B Receive Data line C 1 pulse per second D ATU Scan Line E ATU Tuned signal F ATU Voltage 13V8 G Transmit data line 202 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES 4. Control Handset Connector PIN Signal 1 Ground 2 Handset Voltage 3 4 CAN Bus positive CAN Bus Negative 5 Handset Audio Positive 6 Handset Audio Negative 7 8 9 Ethernet TX Data positive Ethernet TX Data negative Ethernet RX Data positive 10 Ethernet RX Data negative 11 Handset GPS 1 Pulse per Second 12 Reserved 13 Reserved 14 Reserved 15 Reserved 16 Reserved 203 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES 5. DC Input Connector PIN Signal A Input Voltage (+11 V to +28 V DC) B Ground 204 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Control Handset 6 1 2 1. Handset Auxiliary Connector PIN Signal 1 2 Reserved Reserved 3 USB Data Positive 4 USB Data Negative 5 +5 USB 6 Reserved 7 Ground 8 Ground 9 Handset Dock detection 10 Speaker Out Negative 205 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES PIN Signal 11 Speaker Out Positive 12 Dock Speaker Detection 13 H250 Microphone Input 14 H250 PTT 15 H250 Speaker output 2. Control Handset Cable Connector PIN Signal 1 Handset Voltage 2 3 CAN Bus positive 4050 Detect voltage 4 Handset GPS 1 Pulse per Second 5 Handset Audio Positive 6 Ground 7 8 9 CAN Bus Negative Speaker Out Negative Reserved 10 Reserved 11 Speaker Out Negative 12 Handset Audio Negative 13 Ethernet TX Data positive 206 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES PIN Signal 14 Ethernet TX Data negative 15 Ethernet RX Data positive 16 Ethernet RX Data negative Handset Docking Station 1 2 3 7 207 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES 1. Cradle Auxiliary Connector PIN Signal 1 2 Reserved Reserved 3 USB Data Positive 4 USB Data Negative 5 +5 USB 6 Reserved 7 Ground 8 Ground 9 Handset Dock detection 10 Speaker Out Negative 11 Speaker Out Positive 12 Dock Speaker Detection 13 H250 Microphone Input 14 H250 PTT 15 H250 Speaker output 208 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES 2. External Speaker Connector PIN Signal A Dock Speaker Detection B Speaker Out Positive C Speaker Out Negative D Ground 3. H-250 Handset Connector PIN Signal A H250 Handset Ground B H250 Speaker output C H250 PTT D H250 Microphone E Reserved F Reserved 209 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES Appendix 3 - Overview of HF Operation HF (High Frequency) is the radio spectrum with frequencies between 1.5 and 30 MHz. Within this radio spectrum an efficient form of transmitter modulation, SSB (Single Side Band), is used. This, combined with the use of the ionosphere

- a layer of ionisation gases that resides between 100 and 700 km above the Earths surface, provides efficient, cost effective communications over short, medium and long distances - without the need for expensive re-transmission devices, such as the VHF or UHF repeaters or satellites, all of which have ongo-

ing operational costs and a reliance on a physical infrastructure. In many remote areas, HF / SSB is the only form of communication possible. HF Propagation When HF / SSB radio waves are generated by the transceiver there are usually two components:

The ground-wave, which travels directly from the transmitting antenna to the receiving antenna following the contours of the Earth. The sky-wave, which travels upward and at an angle from the antenna, until it reaches the ionosphere (an ionised layer high above the Earths sur-

face), and is then refracted back down to Earth, to the receiving antenna. Generally speaking, ground-wave is used to communicate over shorter dis-

tances usually less than 50 km. Because ground-wave follows the contours of the earth, it is affected by the type of terrain it passes over. Ground wave is rap-

idly reduced in level when it passes over heavily forested areas or mountainous terrain. Sky-wave is used to communicate reliably over medium to long distances up to 3,000 km. Whilst the nature of sky-wave propagation means it is not affected by the type of terrain as in ground-waves, it is affected by factors involving the ionosphere as described below. 210 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Radio Wave Propagation The following illustrations show the characteristics of ground-wave and sky-

wave propagation during day and night time. In each illustration the height of the ionosphere above the ground is shown. In both illustrations Station A communicates with Stations B, C and D. Propa-

gation from Station A to B is by ground-wave. The diagrams illustrate that the ground-wave is not affected by the time of day and the height of the iono-

sphere above the ground. Propagation from Station A to C and D, is by sky-wave and as the diagrams illus-

trate, the sky-wave is significantly affected by the time of day and the height of the ionosphere above the ground. Under each diagram there are recommended working frequencies listed. Please note that these will vary according to time of year and other factors. They are intended only as a guide and are subject to change. Day Night IONOSPHERE IONOSPHERE A B 20 km C 800 km D 2000 km A B 20 km C 800 km D 2000 km EARTH EARTH The sun is higher The ionosphere is higher The best frequency to use is higher. The sun is lower The ionosphere is lower The best frequency to use is lower. A to B - Possible optimum working frequency is 3 MHz A to C - Possible optimum working A to B - Possible optimum working frequency is 3 MHz A to C - Possible optimum working frequency is between 7 - 9 MHz frequency is between 5 - 7 MHz A to D - Possible optimum working frequency is between 13 - 16 MHz A to D - Possible optimum working frequency is between 9 - 12 MHz 211 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES Factors Which Affect HF/SSB Communications There are a number of different factors which will affect the success of commu-

nications via HF/SSB radio. These are outlined below:

Frequency Selection Frequency selection is perhaps the most important factor that will determine the success of your HF/SSB communications. Generally speaking the greater the distance over which you want to communi-

cate, the higher the frequency you should use. Beacon Call, a Selcall (Selective Call) function built into the Barrett PRC-4090 Transceiver, makes finding the correct frequency to use easy. A Beacon Call is based on the network of transceivers all having a selection of frequencies that will accommodate most ionospheric conditions. When in standby, the network transceivers scan these frequencies waiting for a call (Selcall or Beacon Call) from another transceiver. The transceiver wishing to check for the best fre-

quency to operate on sends a Beacon Call to the station to be contacted. If the call to the other station is successful, a revertive tone from the station being called will be heard, indicating the channel selected was suitable for the ionospheric conditions prevailing. If the revertive tone is not heard or is very weak, another channel may be tried until a revertive tone of satisfactory signal strength is heard.

(Refer to Beacon Calls on page 38 for more details.) Time of Day As a rule, the higher the sun, the higher the frequency that should be used. This means that you will generally use a low frequency to communicate early morn-

ing, late afternoon and evening, but you will use a higher frequency to cover the same distance during times when the sun is high in the sky (for example, midday). You will need to observe the above rule carefully if your transceiver has a limited number of frequencies programmed into it, as you may only be able to communicate effectively at certain times of the day. 212 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Weather Conditions Certain weather conditions will also affect HF/SSB communications. Stormy conditions will increase the background noise as a result of static caused by lightning. This background noise could rise to a level that will blank out the signals you are trying to receive. Man-made Electrical Interference Interference of an electrical nature can be caused by overhanging power lines, high power generators, air-conditioners, thermostats, refrigerators and vehicle engines, when in close proximity to your antenna. The result of such interfer-

ence may cause a continuous or intermittent increase in the level of background noise. System Configuration and Installation The method in which your system is configured and installed will also affect the success of your HF/SSB communications. Your choice of antenna system and power supply is critical. Correct installation is also extremely important. An HF/

SSB transceiver is generally installed using different rules to those used to install VHF or UHF transceivers. Failure to correctly install an HF/SSB system will greatly affect the communications quality you will obtain. Your local Barrett representative will be able to assist with your system config-

uration and/or installation. HF Communications Compared with VHF or UHF Short Distance Communications Communications on any HF/SSB transceiver will sound different to that on a VHF (Very High Frequency) radio or UHF (Ultra High Frequency) radio or tele-

phone. This is because of the nature of HF propagation and the modulation methods used. On HF/SSB transceivers there will always be background noise evident behind the signal you are receiving and this will increase when there is electrical interference or thunderstorm activity in the area. 213 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES Appendix 4 - BITE Test It is recommended that any accessories (ATU, linear amplifier, Dual Antenna Switch Unit, secondary control head, GPS etc.), auxiliary port connections and the antenna be disconnected from the SDS or manpack to get consistent BITE test results. Additionally do not touch the control head and the microphone buttons while the tests are running. Each test is outlined below as are possible causes for a failed result. If the fault is interfering with the everyday operation of the system, please contact your local Barrett dealer or Support at www.barrettcommunications.com.au. Tests Real Time Clock This test checks if the real time clock on the microboard responds to com-

mands. A failed test indicates an issue with the I2C bus on the microboard or a defective real time clock. Pre Amplifier I/O This test checks if the pre amplifier board is accessible by checking if the port expander responds to commands. A failed test indicates an issue with the I2C bus on the microboard, the pre amplifier board or a loose connector between the two transceiver halves. Interface I/O This test checks if the internal interface boards are accessible. A failed test indi-

cates an issue with the I2C bus on the microboard, one of the interface boards or a loose connector between the two boards. Local Oscillator This test checks if the oscillator on the microboard is accessible. A failed test indicates an issue with the SPI bus on the microboard or a defective oscillator. Audio Codec This test checks if the audio codec on the microboard is accessible. A failed test indicates an issue with the I2C bus on the microboard, a failed DSB bootup, an ISP bus issue to the DSP or a defective audio codec. 214 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Analog to Digital Converter This test checks if the A/D converter for measuring the final stage voltage is accessible. A failed test indicates an issue with the I2C bus on the microboard, the pre amplifier board, a loose connector between the two transceiver halves or a defective A/D converter. Temperature Sensor This test checks if the temperature sensor for measuring the final stage tem-

perature is accessible. A failed test indicates an issue with the I2C bus on the microboard, the pre amplifier board, a loose connector between the two transceiver halves or a defective temperature sensor. Digital to Analog Converter This test checks if the D/A converter for controlling the boost converter is acces-

sible. A failed test indicates an issue with the I2C bus on the microboard, the pre amplifier board, a loose connector between the two transceiver halves or a defective D/A converter. Rx Current This test checks if the overall current draw while in receive mode (idle) is below 1A. This test can fail if too many accessories (Dual Antenna Switch Unit, ATU, linear amplifier etc) are connected to the SDR or if the accessories are faulty. Disconnect all accessories and rerun the tests. If the test is failed again, there is an issue with the pre amplifier board. Tx Current This test checks if the overall current draw while in transmit mode (BIAS current added) is between 1A and 4A. A failed test indicates the same issues as with the Rx Current test. Additionally, there may be an issue with the final stage on the pre amplifier board. Final Voltage This test checks if the voltage of the final stage is between 28V and 32V. A failed test indicates a defective pre amplifier board (port expander fails to config-

ure the pre amplifier board, the D/A converter fails to set voltage, the boost converter fails or the A/D converter fails to read the voltage). 215 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER -APPENDICES EEPROM This test checks if the EEPROM allows read/write access. A failed test indicates a faulty EEPROM on the microboard. Rx Test This test checks the receiver chain with a synthetic signal. A failed test indicates a defect on the microboard (e.g. synthesizer, digital IF, etc). Automatic Gain Controller This test cycles through the attenuators and checks if the AGC adjusts itself accordingly. A failed test indicates a defect on the microboard (e.g. attenua-

tors). 216 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - APPENDICES Warranty Statement Barrett Communications (hereafter referred to as Seller) provides a three (3) year warranty on all Barrett products from the date of shipment from the Seller. A one (1) year warranty from the date of shipment from the Seller is provided for all batteries. Each warranty guarantees acceptable performance of the product under nor-

mal recommended conditions for the duration of the warranty period. In cases of accident, abuse, incorrect installation or maintenance by a non-Seller rep-

resentative, subjection to abnormal environmental conditions, negligence or use other than those in accordance with instructions issued by the Seller, the warranty shall be voided. In addition, this warranty shall not cover low perfor-

mance specifically the distance or quality of transmission and reception - due to unfavourable environmental or locational conditions. Nor shall this warranty cover the quality of transmission and reception of transceivers mounted in vehi-

cles or vessels that have not been sufficiently electrically suppressed. Should any fault due to bad design, workmanship or materials be proven at any time within the warranty period, the Seller will rectify such fault free of charge provided that the equipment is returned, freight paid, to Barrett Com-

munications Pty Ltd head office or to an authorised service centre. The repaired or replaced product will remain covered under and throughout the term of the original warranty period up to its expiration. No repair or replacement will extend the warranty term past the original thirty-six (36) month anniversary of the original date of shipment from the Seller. Firmware and software (pre-installed, stand-alone or provided as an update), hereafter referred to as Software, is guaranteed to perform acceptably within the specifications provided by the Seller, provided that the Software is within the warranty period. Should Software not perform acceptably, the Seller will use all commercially reasonable efforts to correct such nonconformity as reported to the Seller directly or via a support representative. The Seller is not obliged to update Soft-

ware under warranty if the nonconformity is caused by a) the use or operation of the Software in an environment other than intended or recommended by the Seller in relevant documentation, or b) modifications made to the Software not authorised or undertaken by the Seller or a representative of said Seller. Subject to the matters set out in this warranty, no liability, expressed or implied is accepted for any consequential loss, damage or injury arising as a result of a fault in the equipment and, all expressed or implied warranties as to quality or fitness for any purpose are hereby excluded. This warranty does not extend to products supplied by the Seller which are not designed or manufactured by it. The Seller will however make every endeavour to ensure that the purchaser receives full benefit on any warranty given by the original equipment manufacturer. 217 This warranty is restricted to the original purchaser except where the original purchaser is a reseller authorised by the Seller who has purchased for the pur-

pose of resale, warranty shall be extended to the resellers customer. Contact Details Our customer / dealer technical support department can be contacted via land mail, email, telephone or via support ticket on the technical support web page. https://www.barrettcommunications.com.au/support/

Barrett Communications Pty Ltd Head Office:

PO Box 1214, Bibra Lake WA 6965 AUSTRALIA Toll Free Tel: 1800 999 580 (Within Australia) Tel: +618 9434 1700 Fax: +618 9418 6757 email: support@barrettcommunications.com.au Telephone support from the Australian office is available from 7:30 am to 4:00 pm local time Monday to Friday. Barrett Communications Europe:

Unit 9, Fulcrum 2 Victory Park, Solent Way, Whiteley Hampshire PO15 7FN United Kingdom Tel: +44 (0) 1489 880 332 Fax: +44 (0) 1489 565 422 email: support@barrettcommunications.co.uk Telephone support from the UK office is available from 8:30 am to 5:00 pm local time Monday to Friday. Barrett Communications Corporation USA:

190 Office Park Way Pittsford, N.Y. 14534 Tel: +1 585 582 6134 email: support@barrettusa.com Telephone support from the USA support office is available from 8:30 am to 5:00 pm local time Monday to Friday. 218 Index A Advanced Call History 43 All call 79 Antenna 911 Automatic Antenna Tuner Connection Details (Marine) 184 912 Multi wire Broadband Dipoles 163 2019 Automatic Tuning Mobile Antenna 142 Assembly 148 Connection Details (Mobile Pack) 142 Mounting 144 4011 Automatic Antenna Tuner for Base Station 168 Connection Details 171 4017 Automatic Tuning Horizontal Dipole 165 Connection Details 166 Noise Suppression 140 ARINC 4, 32, 35, 75, 76 Audio 59, 63, 75, 77, 78, 96, 189 Mute 88 B Base Station 24, 86, 109, 155, 168, 171 Beacon Call 30, 32, 38, 39, 48, 49, 51, 52, 54, 96, 211 C 219 Call History 4, 37, 40, 42, 43 Call History Menu 43 CCIR 4, 30, 31, 32, 56 Channel labels 68 Collective Call 75, 79 Configuration 73, 74, 77, 171, 212 Contacts 29, 34, 36, 37, 38, 39, 41, 48, 49, 51, 52, 54 D Digital Voice 75, 78, 80, 103, 158 Display 4, 19, 59, 64 Dual Port Antenna Switch Unit 85 E Earth 169, 182, 209 Emergency Call 17, 27, 28, 32 Export 73, 80, 81, 82 F Frequency Hopping 4, 75, 82 G General Configurations screen 60, 62 GPS Position 51 GPS Push 83 GPS Request 49 Ground 78, 143, 147, 154, 167, 169, 172, 182, 185, 209 Group call 79 220 H Hangup 41, 54, 55 Hopping 4, 75, 82, 102 I Import 74 INT 4, 30, 31, 33, 48, 56 I/O 75, 83, 84 L Label 19, 68, 69 M Marine Installations 181 Mobile Installations 109, 112, 132 Mode 69, 103 Mounting 138, 140, 144, 148, 150, 151, 152, 168, 181 Mute 75, 78, 88, 89 Audio 88 Syllabic Sensitivity 88 N Network 4, 56, 57, 69, 75, 90 Noise Reduction 75, 93 Noise Suppression 140, 141 O OEM 4, 30, 31, 32, 33, 48, 56, 102 221 P Pagecall 30, 48 Receive 48 Programming 27, 65, 66, 73, 79 R RF 5, 75, 94, 95, 144, 161, 168, 170, 182 RFDS 5, 27, 28, 30, 56 RS232 84, 85 S Scan 5, 72, 96, 97, 98, 99 Scan Table 5, 97, 98, 99 Secure Call 32, 53, 54, 103 Secure Digital Voice 80, 103 Security 53, 75, 82, 100, 101, 102, 108 Selcall 2, 4, 5, 27, 28, 29, 30, 31, 32, 33, 35, 37, 38, 39, 40, 41, 42, 43, 47, 48, 50, 52, 56, 57, 76, 79, 85, 88, 96, 97, 98, 188, 211 Selcall ID 33, 35, 41, 42, 48, 50, 52, 79 Self ID 5, 29, 31, 33, 42 Self IDs 31 Serial Number 60, 61 Specifications Receiver 189 Transmitter 190 SSL Mute 88 Status Call 52 222 Sub-group Call 79 Swipe Menu 21 T Telcall 2, 5, 30, 32, 38, 41, 42 Tuning 75, 107, 142, 144, 149, 150, 165, 166, 168 V Version Information 60 Voice Call 17, 26 Voice Mute 88, 89 VSWR 107 223 AUSTRALIA

(Head office and Manufacturing) Barrett Communications Pty Ltd 47 Discovery Drive, Bibra Lake, WA 6163 Australia Tel: +61 8 9434 1700 Email: info@barrettcomms.com UK

(European office) Barrett Communications - Europe Unit 9, Fulcrum 2, Solent Way, Whiteley, Hampshire, PO15 7FN United Kingdom Tel: +44 (0) 1489 880 332 Email: uksales@barrettcommunications.co.uk USA

(US office and Manufacturing) Barrett Communications USA Corp. 190 Office Park Way, Pittsford, NY 14534 United States of America Tel: +1 585 582 6134 Email: sales@barrettusa.com

Antenna Antenna Type Before making a call, an antenna type needs to be selected from the Antenna icon in the swipe menu. If the transceiver is being used with a PRC-4090 battery pack, the menu will show only 50 Ohm and Whip/

Longwire. Tap Antenna 1 Type from the IO screen to display the Antenna 1 Type screen. To reveal more items, either swipe down on the touch screen or press

. Select an antenna type from the fol-

lowing:

Antenna Type Base Station 910 Mobile Ant 911 Auto Tuner Select when... Base station antennas such as the Barrett 912 series are used. No tuning signals are emitted on channel change. Using a Barrett 910 automatic tuning mobile antenna Using a Barrett 911 automatic tuner 2019/4045/4047/4049 Auto Tuner Using a Barrett 2019/4045/4047/4049 automatic tuning mobile HF antenna 2018 Loop Ant Using the 2018 Mobile magnetic loop HF antenna 4075 Linear Using the transceiver with a Barrett 4075 series linear amplifier. 4075 Linear with ATU Using the transceiver with a Barrett 4075 series linear amplifier with ATU. 4011/4015 Auto Tuner Using a Barrett 4011/4015 automatic tuner 4017 Auto Tuner Using a Barrett 4017 automatic tuner OEM Tuner OEM 2 Tuner 3040 tuner compatible (non-Barrett product) F2265 tuner compatible (non-Barrett product) OEM Preselector Using a non-Barrett Preselector 411 Auto Tuner Using a 411 Automatic HF Tuning Unit 24 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Selecting a Channel There are two ways to select a channel on the Barrett PRC-4090 HF SDR Trans-

ceiver. 1. From the home screen, press the up (A) or down (B) keys on the keypad. This will allow a user to cycle though the programmed channels. A B A B Portrait mode Landscape mode 2. From the transceiver home screen, press the channels but-

ton. This brings up the Channel Selection menu and shows all of the channels programmed into the transceiver in one place. Tap a channel to select it. Holding down this channel button information opens the Channel screen which displays all of the settings for the channel currently selected. Channels If there are no channels programmed into the transceiver, turn to page 66 for instructions on channel programming. and type in the number of Alternately, to search for a specific channel, tap the channel as programmed in the transceiver eg. typing 4 will select channel 4. 25 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Making a Voice Call Speaker Press To Talk

(PTT) Button Microphone When Using the Microphone:

1. 2. 3. Press and hold the PTT (transmit) button only while talking Position the microphone close to your mouth Speak clearly 4. Use the word over to indicate that you have finished speaking, and then release the PTT (transmit) button. Notes:

The Barrett PRC-4090 has a transmit time-out facility. This facility (when pro-

grammed) allows the transmitter to be keyed in transmit mode with the PTT

(transmit) switch for a set time period, after which the transceiver switches to receive until the PTT (transmit button) is released and re-keyed. This facility prevents the transmitter transmitting for long periods of time if, for example, the microphone becomes jammed between seats in a vehicle causing the PTT

(transmit) switch to be held down. Enabling, disabling and changing the time of the transmit timeout facility can be set either when programming the trans-

ceiver or in the RF Section of the Settings menu. See page 94. The microphone up / down buttons can be configured for channel change or volume control functions either when programming the transceiver or in the General Section of the Settings menu. See page 62. 26 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Making an Emergency Call Note: Emergency Channels must be programmed using the Barrett PRC-4090 HF SDR Programming Software (P/N BCA40001). All Selcall emergency calls are transmitted by simultaneously pulling and twisting the on/

off switch to the Emerg. Setting and releasing the switch. Emergency transmission will begin immediately. The LED indicator will flash slowly before transmission starts and become solid green upon transmit. An emergency call can also be initiated by press-

ing and holding the taneously. and keys simul-

If the Emergency call is not enabled on the transceiver, an error message will appear and the emergency call will not be sent. The action of the emergency call depends on how the transceiver has been programmed. For example:

Selective Call that transmits and automat-

ically changes to a selection of channels. Transmits the emergency Selcall sequence on each of the maximum of 20 channels programmed as emergency channels. There is a pause between calls allowing the operator to listen for an acknowledgment coming back. After the Emergency call is attempted on all the preprogrammed emer-

gency channels the transceiver will go back into scan mode (if scanning is available) or stay on the last channel selected before the Emergency call was initiated. If a GPS receiver is fitted and enabled, the GPS position is also sent with the call. Note: After the emergency call has been sent, there is no indication that a call has been sent for security purposes. Royal Flying Doctor Service (RFDS) alarm Two-tone alarm 880 Hz + 1320 Hz continuous (Australian use only) alerts the Royal Flying Doctor Service on RFDS channels. 1. Select a channel with RFDS as the Selcall format. 27 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION 2. Simultaneously pull and twist the on/off switch to Emerg. and release the switch. The RFDS alarm will continue transmitting for ten seconds. To cancel the RFDS alarm, press the PTT button or the button. Receiving an Emergency Call On receipt of an emergency Selcall, a dis-

tinctive audio alarm is emitted and the fol-

lowing message displayed. If the transceiver sending the emergency Selcall is fitted with a GPS receiver, the position will also be displayed. 28 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION SELCALL 3 This chapter contains the following sections:

Overview Important Selective Calling Information Summary of Calling Systems Setting up a Self ID Setting up Contacts Making a Selcall Advanced Selcall 29 Overview This chapter covers all types of Selcall available on the Barrett PRC-4090 trans-

ceiver. All of these options are not available in all countries and may need to be purchased separately. Selcall or Selective calling is a type of digital signal for HF networks. It utilises a type of squelch protocol where the transmission begins with a brief sequence of audio tones. There are several different types of Selective Calling Systems available in addi-

tion to simple point-to-point HF communications. The calling systems available for the transceiver are listed below:

International (INT) - A four and six digit Selective Call system, fully interop-

erable with the UN format published in September 2004 and fully back-

wards compatible with all previous Barrett four and six digit Selcall pro-

tocols. OEM - A four and six digit Selective Call system compatible with other major HF manufacturers including those using encryption. Includes Selcall, Telcall, Beacon Call, Emergency call, Pagecall and GPS call. CCIR - A four digit Selective Call system as specified by CCIR-493. RFDS - Royal Flying Doctor Service (Australia Only) ARINC - Aeronautical Radio INC. 30 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Important Selective Calling Information Selcall Self IDs The PRC-4090 transceiver can hold up to 14 different Selcall Self IDs assigned to it. These Selcall IDs can be any combination of four or six digit OEM or INT type ID. Selcall Decode The transceiver has the ability to decode both OEM and International Selcalls on any channel programmed as a Selcall channel. However, the call must be addressed to the relevant ID (OEM or INT). Calls for each format type will only be decoded if there is at least one Self ID of that format programmed into the transceiver Self ID group. Selcall Transmit Selcall formats in transmit are channel specific. For example, only call types programmed for the channel are permitted. This means International format calls can only be sent on channels that are programmed as International Selcall channels. OEM calls can only be sent on channels that are programmed as OEM Selcall channels Special Notes for the OEM Selective Call Protocol Six digit OEM calls will only be decoded by other Barrett transceivers fitted with the OEM Selcall protocol or other manufacturers transceivers that use DES56 encryption. This does not require an export permit. Four digit OEM calls will be decoded by Barrett 950 and 2050 transceivers using the International Selcall (four and six digit) and other manufactur-

ers transceivers with similar CCIR-493 based Selective Call systems. Four and six digit GPS and Status data calls use the OEM privacy key to encrypt the data. If this eight digit key has not been programmed by the programming software, a default privacy key of 99999999 is automati-

cally used for transmission. Four and Six digit Page calls also use the privacy key but unlike the other calls, the user has the option to manually enable or disable the privacy key. When disabled, the data is sent as plain text. Emergency GPS calls are automatically sent as plain text (four and six digit). 31 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Summary of Calling Systems Call Type Emergency Call Beacon Call Selcall Telcall ARINC Call Page Call (SMS) GPS Call (Data & Request) Secure Call Status Request Call International OEM Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes The three most commonly used calls are Beacon Call, Selcall and Telcall. The other calls are more advanced and can be found in the Advanced Selcall Func-

tions section of this chapter on page 47. Selective Call - Beacon Call Beacon Call allows the Operator to determine the signal quality between their station and the station they want to call on a particular channel, but without actually alerting the station they are doing so. Selective Call - Selcall Selcall is a signalling system based on standard CCIR-493 for use on HF net-

works. Each station in a HF network can be assigned up to 14 Self IDs of which there can be a mixture of four and six digit IDs. The station can be called using any of these self IDs. It functions as a hailing or alert system i.e. a HF transceiver (Station A) can send a Selcall to another transceiver (Station B). This will alert the operator at Station B that Station A is contacting them. Selective Call - Telcall Telcall uses this Selective Call system to transport a telephone number from a station on a HF network to a base station equipped with a telephone intercon-

nect unit to initiate phone calls onto the international telephone network. Note: For Selcall and Telcall functions to operate, the channels being used must be enabled for Selcall operation. 32 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Setting up a Self ID 1. From the Settings menu, tap the Selcall icon. 2. Tap Default Int Selcall ID (4 digits). This will set up a 4 digit ID. Settings Selcall 3. Type in a four digit number. This will either be provided to you by your network provider or an original ID may be able to be used if it does not conflict with another ID on the network. The procedure is the same for the Default Int Selcall ID (6 digits), OEM Selcall ID (4 digits) and OEM Selcall ID (6 digits). Note: Having both a four digit and the six digit ID is not required, either would still allow successful operation. It is recommended that the four digit or six digit INT and OEM IDs be the same for easy self identification. A list of all of a transceivers current IDs can be found under Selcall Networks in the Selcall menu. This shows all the current Selcall IDs for a transceiver and the networks that they are attached to, see page 56. 33 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Setting up Contacts 1. From the Settings menu, tap the Contacts icon. 2. To add a new contact tap the +

button on the left of screen. Settings Contacts The following menu will open:

Will not be described in this manual. See ALE 2G and ALE 3G User Guide (P/N BCM40524) 34 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL From this menu, enter a name for this con-

tact. Both first name and last name do not have to be completed. ID type, refers to the type of ID the trans-

ceiver you are inputting has, whether it be 4 digit, 6 digit or ARINC. Select which is appro-

priate and enter the Selcall ID. An email address and phone number can also be entered. Once again these do not have to be entered for basic functionality of the transceiver. To favourite this contact, select yes under Favourite. 3. To save the contact,tap the in the top right hand corner of the screen and select yes. 35 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Additional Contact Information Searching Contacts The contacts list can be sorted alphabeti-

cally by first name using the icon shown on the right, located on the left hand side of the Contacts screen. Either tap to display the results of the search. or press or The icon on the left of the search bar clears the search and the icon on the right per-

forms the search again. Editing Contacts To edit contact details, select the desired contact by using the and keys and either tap the contact or press from the keypad The Edit Contact screen displays. Select and change the desired settings. Deleting Contacts From either the Settings<Contacts screen or the Call<Contacts screen, tap and hold a contact to trigger the Delete Contact screen. To delete the contact, select Yes, or select No to cancel the operation. 36 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Making a Selcall Before making a Selcall, ensure the transceiver is not scanning channels and select a Selcall channel. For more information regarding channel selection and basic voice calls, see on page 17. Use the key to access the Manual Call screen. From this menu, Selcalls, Contacts, Favourites and Call History can be accessed. 1 2 3 4 5 6 1 2 3 4 5 6 Contacts - Favourites Contacts Call Type Selection Menu Call Type Call Sub-types Call Key 37 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Beacon Call Beacon Call allows the operator to determine the signal quality between their station and the station they want to call on a particular channel, but without actually alerting the station they are doing so. When a Beacon Call is sent to another station, and if the channel being used is open, the remote station sends back a distinctive four-tone revertive signal. The operator can judge the quality of the channel for communications purposes by the strength and clarity of this distinctive tone. Using Beacon Calls on several available channels will determine which channel is best to use for subsequent Selcalls or Telcalls. Note: both stations must be programmed for Selcall or Telcall operation. Sending a Beacon Call 1. Listen for traffic on your selected channel. If traffic is heard, select another channel and try again. 2. Press and, if necessary, press the icon to show the Call Selection screen. 3. Either:

Select Beacon Call, enter a Selcall Id manually and press Enter, or Choose a contact from the Contacts icon Call. and then select Beacon 4. Wait for the Beacon Call to be sent and listen for the distinctive four-tone rever-

tive signal from the station you have called. If a revertive tone is not heard, or is dif-

ficult to hear, try another channel and repeat the process until the revertive tone is clear. 38 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Receiving a Beacon Call When a transceiver receives a beacon request call, it responds by transmitting the Beacon Call revertive tones. No indications occur on the transceiver. Beacon Calls are not saved in the Selcall History. Selcall Sending a Selcall 1. Select the channel to send the Selcall on

(Beacon Call can be used to determine the best channel) 2. Listen for traffic on that channel. If traf-

fic is not heard, continue. 3. Press and, if necessary, press the icon to show the Call Selection screen. 4. Either:

Select Selcall, enter a Selcall Id man-

ually and press Enter, or Choose a contact from the Contacts icon and then select Selcall. 5. Wait for the Selcall to be sent and listen for the revertive signal that indi-

cates the call was successful. If a revertive tone is not heard or was difficult to hear, try another channel and repeat the process until a good channel is found. If a revertive tone is heard but you receive no verbal response from the station, it may be because the Operator is unavailable at the time. 39 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Receiving a Selcall Note: To receive a Selcall your transceiver must be programmed for Selective Call

(Selcall) and where multiple channels are in use the scan function should be acti-

vated. When you receive a Selcall, your station sends a revertive tone (to alert the calling station that its call was received), an audi-

ble alarm sounds, the mute (squelch) (if selected) opens and the display shows who the call is from. The audible alarm will sound for 60 seconds unless acknowledged and then time out. To cancel the alarm and acknowledge the call, press the PTT button or tap a periodic audio reminder is emitted. If the audible alarm times out, the missed call icon displays and For details of previously received Selcalls, press and hold to display the Advanced Call History screen. Refer to the Advanced Call History section on page 43. 40 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Telcall Telcall uses the digital Selective Call system to send a telephone number on an HF network. Telcalls are primarily used to send to stations equipped with a tele-

phone interconnect unit to initiate phone calls onto the PSTN. Note: For Selcall and Telcall functions to operate the channel must be enabled for Selcall operation. Sending a Telcall 1. Select the channel to send the Telcall on. This will be the channel provided to by your network administrator contact the interconnect. 2. Press and, if necessary, press the icon to show the Call Selection screen. 3. Either:

Select Telcall, enter the selcall ID of the interconnect, select Enter phone number, enter the phone number manually and press Enter, or Choose a contact from the Contacts icon and then select Telcall. Enter the Selcall ID of the Interchange, choose Select from Contact and select contact. 4. Wait for the call to be sent and listen for the revertive signal that indicates the call was successful. If a revertive tone is not heard try another channel and repeat the process. If the destination station is connected to a telephone interconnect, when the call is successful, wait for the telephone connection to be made and then proceed with the call. 5. Perform a Hangup Call to disconnect from the interconnect (refer to page 55 for more information on Hangup Calls). 41 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Receiving a Telcall Note: To receive a Telcall your transceiver must be programmed with a Self ID and where multiple channels are in use the scan function should be activated. When you receive a Telcall, your station sends a revertive call (to alert the calling station that its call was received), an audi-

ble alarm sounds, the mute (squelch) (if selected) opens and the Telcall screen dis-

plays. The Telcall screen shows the Selcall ID and telephone number of the caller. Tap maintain the Telcall screen. to stop the audible alarm but Tap To close the Telcall screen. The audible alarm will sound for 60 seconds, unless acknowledged and then time out. To cancel the alarm and acknowledge the call, press the PTT button or tap either or

(described above). When the audible alarm times out, the call received icon displays and a periodic audio reminder is emitted. For details of previously received Telcalls, press and hold Advanced Call History screen. to display the 42 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Advanced Call History Advanced Call History is a log of all Selcall, ALE 2G and ALE 3G call types stored in the transceiver handset. The log has the time of transmission, frequency and IDs of the transmitting and receiving transceivers recorded with every entry. Advanced Call History also has a return call feature that directly links the call history with the transceivers call functionality whilst pre-entering the informa-

tion from the selected call entry. The Call History is also directly connected to the transceivers contact settings, allowing calls from the same contact to be collated together - regardless of call type. This can be toggled on or off in the Call History menu. Call History Menu The Call History menu can be accessed via Settings < Call His-

tory. From this menu, the Advanced Call History can be accessed, deleted, updated and the collation of the call history by contact can be tog-

gled on or off. Update advanced call history will only appear when using a remote control applica-

tion (see IP Connectivity Guide P/N BCMPRC-40907). Enabling the Collate call types function will group calls from the same contact together - regard-

less of call type (Sellcall, ALE 2G or ALE 3G) - based on the contacts entered into the transceiver via either the programming software or the transceiver handset (see page 34 for further details on creating contacts). Disabling the Collate call types function will collect calls in threads based on the call type (Selcall, ALE 2G or ALE 3G) and sender regard-

less of whether they are entered as a contact. Settings Call History 43 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Pressing an arrow reveals fur-

ther information about a call including frequency, channel number, as well as to and from addresses. Uncollated Calls Collated Calls Pressing a call bubble within a thread will initiate the return call process to the sender. Please note that this function is unavailable for ALE 2G and 3G NetCalls. 44 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Advanced Call History Menu This menu can be accessed by either pressing and holding the Call button for 2 seconds or via the Settings < Call History Menu. Both display the same features and have the same functionality. Advanced Call History 1 2 3 4 5 Uncollated Calls Search The Search function allows an operator to search the following fields: first name, surname, phone number or email address of a contact; Selcall ID, ALE 2G or ALE 3G alias; date or time of call or data type call (GPS, status, pagecall). Call Type The call types are outlined in the table below. ID or Alias This is the ID, address or Alias of the remote trans-

ceiver that the local transceiver is/was communicating with. Date and time The date and time of the most recent call in a thread are displayed here. Incoming or Outgoing call The arrows display whether the last call in the mes-

sage thread was a transmitted, received or missed call. 45 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Icon Description Call transmitted Call Received Missed Call Missed Call count Call sent and delivered at other station * For 2G and 3G only Call sent but not delivered at receiving station *for 2G and 3G only. The red cross indicates non-delivery as a default state until a call sent acknowledgment is received. Icon Description Selcall INT format Selcall OEM format Selcall CCIR format Selcall RFDS format SC Emergency Selcall format ALE 2G format ALE 3G format 46 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Advanced Selcall Functions The Selcalls and settings in this section are less commonly used than those pre-

vious but are useful in all manner of situations. Selcall Settings From the Settings menu, select Selcall to view the Selcall Settings for the transceiver. The following menu displays:

Settings Selcall The volume of the Selcall audio during Transmit. It can be Selected as Low, High or Off. The length of the Selcall preamble. 500ms are recommended per channel in the scan group + 1 second. Default 4-digit INT Selcall ID. Identifies the transceiver to other users when using an INT channel. Default 6-digit INT Selcall ID. Identifies the transceiver to other users when using an INT channel. 4-digit OEM Selcall ID. Identifies the transceiver to other users when using an OEM channel. 6-digit OEM Selcall ID. Identifies the transceiver to other users when using an OEM channel. A list of the transceivers Selcall IDs on saved Selcall Networks. Can be modified. 47 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Pagecall Pagecall (SMS) allows messages of up to 32 characters in INT format, or 64 characters in OEM format to be sent to or received from other transceivers with Pagecall facilities. Sending a Pagecall 1. Select the channel on which to send the Page-

call (Beacon Call can be used to determine the best channel) 2. Listen for traffic on that channel. If traffic is not heard, continue. 3. Press and, if necessary, press the icon to show the Call Selection screen. 4. Either:

Select Pagecall, enter the selcall ID of the transceiver you wish to contact, type in the message and press Enter, or Choose a contact from the Contacts icon call. Type in the message and press Enter. and then select Page-

5. Wait for the call to be sent and listen for the revertive signal that indicates the call was successful. If a revertive tone is not heard try another channel and repeat the process. Receive a Pagecall When a Pagecall is received, an audible alarm sounds, any mute is disabled and the Pagecall screen displays The Pagecall screen shows the Selcall ID and mes-

sage. Tap Pagecall screen. to stop the audible alarm but maintain the Tap To close the Pagecall screen. 48 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL The audible alarm will sound for 60 seconds and then time out. To cancel the alarm before the time out period, and to acknowledge the call press the PTT button or tap either

(described above). When the audible alarm times out, the call received icon displays and a periodic audio reminder is emit-

ted. or When the audible alarm times out, the call received icon displays. This message can be retrieved from the Advanced call history menu (see page 45). GPS Request Use this option to request a remote stations GPS position. Information from the remote station will be either the latest GPS position of the station or 1 of 2 error messages:

GPS Unresponsive - where data is not being received or invalid data is received from the GPS unit connected to the remote station. GPS Not fitted at Remote Station - where the remote station does not have a GPS unit connected to it. Sending a GPS Req 1. Select the channel on which to send the GPS Req (Beacon Call can be used to determine the best channel) 2. Listen for traffic on that channel. If traffic is not heard, continue. 3. Press 4. Either:

Select GPS Req, enter the selcall ID of transceiver you wish to contact and press Enter, or Choose a contact from the Contacts icon and then select GPS Req. 49 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL 5. Wait for the call to be sent and listen for the revertive signal that indicates the call was successful. If a revertive tone is not heard try another channel and repeat the process. 6. The receiving station will transmit its posi-

tion if fitted with a GPS receiver. The plays alternately, their Selcall ID) GPS the callers Data screen Selcall Alias dis-

(or To stop the alarm sounding but keep the dis-

play, press

. To close the screen, press

. 50 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL GPS Position Use this option to send your GPS position to another station. A GPS receiver must be connected and receiving position information when using the GPS call option. Sending a GPS Pos 1. Select the channel on which to send the GPS Pos (Beacon Call can be used to determine the best channel) 2. Listen for traffic on that channel. If traffic is not heard, continue. 3. Press 4. Either:

Select GPS Pos, enter the selcall ID of transceiver you wish to contact and press Enter, or Choose a contact from the Contacts icon and then select GPS Pos. 5. Wait for the call to be sent and listen for the revertive signal that indicates the call was successful. If a revertive tone is not heard try another channel and repeat the process. Note: If the display indicates that the GPS is una-

vailable, you cannot select the Selective Call function GPS Pos. 51 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Status Call A Status call allows the operational status parameters of any Barrett transceiver fitted with Selcall to be accessed. This status is sent from the remote transceiver as a Selcall with the status information embedded within the Selcall structure. Information retrieved for remote diagnosis of transceiver performance includes:

Selcall ID Receive state battery voltage Last transmit state battery voltage Signal strength indication of received status request Selcall Forward power output level VSWR of the antenna Temperature Selcall ID of the last radio called. Sending a Status Call 1. Select the channel to send the Status Call on

(Beacon Call can be used to determine the best channel) 2. Listen for traffic on that channel. If traffic is not heard, continue. 3. Press 4. Either:

Select Status, enter the selcall ID of trans-

ceiver you wish to contact and press Enter, or Choose a contact from the Contacts icon and then select Status. 5. Wait for the call to be sent and for the remote station to return its status data. 52 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL If a reply is not received, either repeat the process or change the channel and repeat. Secure Call The Secure Call option provides the transceiver operator with a secure speech path using an in-band hopping technique. Secure Call is simple to use requiring each radio to be setup with the same four digit Selcall Secure Call Code. Features:

The Secure Call is limited to point to point and point to multi point (group call) communications between radios within a network. If any radio drops out of the secure call, it is not possible to re-enter the secure call. Operators can re-establish the link following the Secure Call method. Secure Call Codes A Secure call code is necessary to make a successful secure call. Create a Secure Call Code via Settings, Secu-

rity, Secure Call Code. Type a 4 digit number. Note: The 4 digit secure call code must be the same for both the transmitting and receiving stations. Settings Security 53 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Sending a Secure Call 1. Select the channel to send the Secure call on

(Beacon Call can be used to determine the best channel) 2. Listen for traffic on that channel. If traffic is not heard, continue. 3. Press 4. Either:

Select Secure, enter the selcall ID of transceiver you wish to contact and press Enter, or Choose a contact from the Contacts icon and then select Secure. 5. Listen for the secure call revertive tone from the called station which indicates the call was successful. Note: The secure call revertive tone has a different sound to the revertive tones of the other call types. If the revertive tone was not heard or was diffi-

cult to hear, try another channel and repeat the process. Now the transceivers can communicate securely using a voice call. Other users on the frequency will only hear garbled speech. To exit secure mode, a Hangup call will need to be sent, or the local station only). key pressed (disconnects 54 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Hangup Call When a call to a telephone interconnect base station has completed or a secure call link is complete, the operator should hang-up by sending a hang-up call. Sending a Hangup Call 1. Press 2. Select Hangup and the Hangup call will be sent out. The transceiver will use the des-

tination ID when sending the call from the initiating transceiver or the source ID when sending from the receiving transceivers. Lis-

ten for hang-up revertive tone which con-

firms the disconnect was successful. 55 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Selcall Networks The Selcall Network screen is a list of the transceivers 4 and 6 digit IDs on vari-

ous HF networks. These are programmable and up to 5 networks can be stored on the transceiver. Creating a New Selcall Network 1. Access the menu via Settings and Selcall. Select Selcall Networks. Settings Selcall 2. Tap the + symbol to create a new Selcall Network. 3. Selcall Network Alias refers to the name of the network on your transceiver. This is not read or transmitted by any external trans-

ceivers or displayed when you transmit. 4. Selcall Format chooses whether the net-

work transmits over INT, CCIR, OEM or RFDS frequencies. All transceivers in the network will need to be the same in order to transmit between each other. 5. The Selcall IDs on each network may be specific to each network. These will gen-

erally be provided by the network admin-

istrator. 6. Select the green tick and then Yes to save the Network. 56 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL Editing an Existing Selcall Network To edit a Selcall Network, select the desired net-

work and either tap the network or press from the keypad. The Selcall Network screen displays. Edit the details as described above (for Add a Selcall Network). Deleting an Existing Selcall Network Select the Selcall Network to be deleted, then tap and hold for three seconds. A confirmation message displays. Tap Yes. 57 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL 58 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL BASIC SETTINGS 4 This chapter contains the following sections:

System Information General Settings Audio Settings Display Settings 59 System Information Select System Info from the Set-

tings menu to display the System Information screen. Settings System Info Head Device ID This displays the name of the control head. This name is used to differenti-

ate between primary and secondary heads. Serial Number This displays the transceivers serial number. Version Information This menu provides software and firmware version numbers. Contact your Barrett provider for more infor-

mation 60 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC SETTINGS Transceiver Options This menu displays the active and inactive options on your transceiver. To activate an inactive option, please contact Support at Barrett Commu-

nications at:

support@barrettcommunications. com.au. Configuration Pack Information This menu offers easy identification of the transceivers current pack and when it was last updated. SDV/4026 Serial Number This provides the serial number of the SDV/4026 hardware module fitted in the transceiver. 61 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC SETTINGS General Settings Select General from the Settings menu to display the General Con-

figurations screen. A list of items that may be config-

ured is displayed. To reveal more items, either swipe down on the touch screen or press

. A brief description of each of the items which may be configured is described beneath the items. The current status of each of the items is displayed on the right. 62 Settings General Modifiable name for the transceiver. This name will be used to refer to this transceiver on external networks. Controls the function of the arrow keys on the side of the hand held microphone. Can control either channel or volume. Sets the format in which the date is displayed on the transceiver to one of five options. Toggles the time format between 12 and 24 hour displays. This displays on the transceiver front panel. Sets up the date, time and timezone displayed on the transceiver. Swipe up or down on the touchscreen to modify. Built in Testing Equipment. Provides a basic indication of faults in the system. See Appendix 4, page 214. Language of the transceivers display. For use with a Barrett Break-out-Box. If BoB is connected, select Enable. Will revert transceiver back to factory settings. All channel info, ALE2G/3G info, all security PINs and encryption keys will be cleared. BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC SETTINGS Audio Settings Tap Audio from the Settings screen to display the Audio screen. A list of items that may be configured is displayed. A brief description of each of the items is described beneath the items. The current status of each of the items is displayed on the right. To reveal more items, either swipe down on the touch screen or press

. Settings Audio Volume level for the Key tones. Can be configured as Low, High or Off Volume control for the incoming Audio Alarm. Can be configured as Low, Med, High or Mute. Choose 1 of 7 ring tones for the incoming alarm tone. Advanced Operations. For more information, see page 75. 63 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC SETTINGS Display Settings Tap Display from the Settings screen to display the Display screen. A list of items that may be configured is displayed. A brief description of each of the items is described beneath the items. The current status of each of the items is displayed on the right. 64 Settings Display Adjusts the brightness of the screen backlight. Can be configured as Low, Med, High and Very High. Length of time before the Display timeout behaviour activates. Can be configured as Short Timeout (1 min), Long Timeout (3 min) or Always On. Behaviour of the screen activated when the backlight times out. Shows screensaver, dims or switches off display. The preferred unit to display the Transmit Wattage. Either Watts or Chevrons. The preferred unit for displaying the received signal strength. dBm, uV or S Meter. Preferred unit of temperature for the transceiver. Celcius or Farenheit. Changes the display format for the GPS coordinates in the swipe menu Changes the displayed units of distance for the GPS between Kilometres, miles and nautical miles. Changes the display orientation between portrait, landscape or flipped modes. Changes the display theme between default, red, green or dark green. See advanced settings page 75. BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC SETTINGS PROGRAMMING 5 This chapter contains the following sections:

Channel Programming Free Scroll Rx/Tx Programming via USB 65 Channel Programming The programming of channels is restricted in some countries. In this situation, transceivers will be pre-loaded with a channel pack and this function will be locked in the transceiver menu. If the transceiver is unlocked, there are three ways to program channels into the transceiver. 1. Manually through the transceivers handset, 2. By inserting a USB storage device containing the appropriate files into the transceivers USB socket (see page 73) 3. By using the Barrett Programming Software (P/N BCA40001). This option is not available in all countries. Please check with your Barrett dealer for your location. For more information on using the Barrett Programming Soft-

ware, please refer to the PRC-4090 SDR Programming Manual (P/N BCM-

PRC-40903). Programming Channels Through the Handset Tap Channels from the Settings screen to display the Channels screen. A list of currently used channels dis-

plays. Each channel shows its chan-

nel number, frequency, and channel label. Settings Channels 66 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Adding a new channel To add a channel, tap to display the Add Channel screen. Number designated for the channel. Usually the next available number. Name designated for this channel. More detail below. Desired receive frequency in kHz. Can be entered using the on-screen keypad. Desired transmit frequency in kHz. Can be entered using the on screen keypad. Mode of Modulation. Can be USB, LSB, CF, CW or AM. See Terms and Abbreviations on pg 4-5. Network Administrator designated. Transmit power in Watts. Can be either 10, 30, 125 or 150W Designates the Selcall IDs to be used on this channel, whether INT, OEM, CCIR, RFDS or an ID set to a network. Displays ALE type. Covered in the ALE manual. 2G, 3G, 2G/3G, No. Designated Antenna socket. Selects the antenna to be used for this channel. An additional antenna can be added using the Dual Port Antenna Switch Unit (P/N BCA40506). Viewable in mobile and base station formats only. After configuring the above attributes, tap message displays. Tap Yes. to add the channel. A confirmation 67 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Editing a Channel To edit a channel, select the desired and channel by using the keys from the Channel screen and either tap the channel or press from the keypad. The Channel Information screen dis-

plays. Edit the fields as desired. Deleting a Channel To delete a channel, tap and hold for three seconds the channel you wish to delete. A confirmation mes-

sage displays. Tap Yes. Label Channel labels are used to name a channel and remind a user what the channel is used for eg. UNHCR Geneva. Channel Labels must be created under the labels menu before they can be applied to a channel. Adding a New Label Settings Labels To create a new label, tap the icon menu. the Settings<Labels from Type the New Label using the on screen keyboard. This label can now be added to a channel. 68 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Editing an Existing Label To edit a channel label from the Channel Labels and screen, select the label by using the keys and either tap the label or press from the keypad. Use the keyboard to edit the name of the label, then tap to save. Deleting an Existing Label To delete a channel label from the Channel Labels screen, select the channel label you wish to delete, then tap and hold for three seconds. A confirmation message displays. Tap Yes. Mode Network administrators designate usable channels and modes as one of the following:

USB - Upper Side Band. LSB - Lower Side Band. CF - Custom Filter. CW - Continuous Wave (Morse code). AM - Amplitude Modulation. 69 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Free Scroll Rx/Tx Frequency Selection Free Scroll Rx is a feature that allows a user to scroll through frequencies in a receive-only capacity. If the Free Scroll Tx option is enabled, pressing PTT will allow transmit on the selected frequency. From the home screen tapping the channel frequency will open the Free Scroll function. This can be navigated in two ways:

The directional buttons The left and right arrow keys change which digit is high-

lighted. The up and down keys change the value of the highlighted digit. Tapping the digits Note: The Free Scroll menu can be locked in the PRC-4090 Programming Software and, if locked, will not appear when the frequency is pressed. 70 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Adding a Channel from the Free Scroll screen A channel can be added directly form the Free Scroll screen. When a desirable frequency is found, pressing enter on the front panel will allow the frequency to be added at the next available chan-

nel number. All of the fields can be set, as when programming a channel from the channel menu (see page 66). Press to save the channel. 71 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Free Scroll Scanning By holding the Scan icon, the scan settings for Free Scroll can be set. Scan Rate indicates the time spent on each frequency. Scan Step Indicates the interval between frequencies scanned. Tapping the scan icon will initiate scanning. Scan 72 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Programming Via USB The transceiver configuration can be imported or exported as a pack. This contains the channel configurations, ALE 2G/3G settings, scan tables, contacts and settings amongst other information. Note: a valid USB storage device must be inserted to activate. Exporting Settings to a USB To export the devices configuration settings, insert a USB storage device into either a PRC-4090 Handset USB Interface (4090-01-27) or the Handset Docking Station (4090-05-03). 1. Tap Settings, then Export. Settings Export 2. From the Export screen, tap Export Configuration to display the Config-

uration File Name screen. The default name displays. Use the keyboard to type an alternative name of the configuration file to export to the USB storage device. Tap to save. 3. Enter an optional password to encrypt the exported pack. 4. The Export Configuration screen displays showing a progress bar confirm-

ing the progress of the export. When prompted, tap OK and remove the USB storage device. 73 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING Importing Settings from a USB 1. With a USB storage device inserted into the USB port, tap Settings, then Import. If the correct files are on the USB, the transceiver will recognise them and initiate the Choose Action screen. Settings Import/Update 2. To update the configuration settings (pack), tap Import Configuration from the Choose Action screen described above. The Choose a File screen displays. Select the required file to import. If a password was set up for the pack, this will be required for the import to complete. Confirm that the call history will be replaced when the new pack is loaded. 3. The import process will then begin automatically showing a progress bar. Remove the USB storage device when prompted. 4. The importing of a pack via USB is complete. Note: For transceivers that are installed with the ALE 2G Option only and no other Digital Voice Options, a shutdown and restart of the transceiver will be required once a pack has been installed. 74 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - PROGRAMMING ADVANCED OPERATION 6 This chapter contains the following sections in alphabetical order:

ARINC Call Audio - Advanced Collective Call Digital Voice Frequency Hopping I/O Settings Modes Mute (Squelch) Network Noise Reduction (NR) RF Settings Scanning Screen Capture and Re-sync Security Settings Tuning Zeroise 75 ARINC Call An ARINC call functions in much the same way as a Selcall. It is a hailing or alert system used exclusively to alert aircraft. An ARINC ID is a sequence of two sets of 2 let-

ters. Each pair must be entered alphabetically eg. AB-CD or CD-AB. The interface does not allow invalid ARINC IDs to be entered and blanks out invalid characters. 76 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Settings Audio Audio - Advanced From the Settings menu, select Audio. For information on Beep Level, Alarm Audio Level and Ring tones, see Basic Settings page 59. Rx Configuration This option sets whether the transceiver receives audio via the antenna or from the Line. Selecting Internal Audio ensures the transceiver receives audio through the antenna. For External Audio, the transceiver receives through the auxiliary sockets 600 ohm balanced audio port. This can be used in many situations eg for a remote receiver in split site operations and audio is received from the remote site. Tx Configuration This option sets whether the PRC-4090 transmits to the antenna or down the line. When set as local the transceiver transmits through the antenna. When set as remote, the transmit audio is sent through the auxiliary sockets 600 ohm balanced audio port. Audio Bandwidth This section allows the audio bandwidth to be tailored to an operators requirements. Select either:

300 Hz - 2700 Hz: used for reduced bandwidth voice operation 300 Hz - 3000 Hz: standard voice and data operation 300 Hz - 3200 Hz: recommended for use with clover waveforms 300 Hz - 3400 Hz: recommended for use with digital voice and Stanag wave forms 77 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Line Audio This option sets the muting condition of the 600 ohm balanced audio line out-

put on the rear auxiliary connector. The line output can be set to Unmuted or Follows Mute. When set to Follows Mute, the line output is muted in the same manner as the speaker output and follows the mute condition currently in use. The line output is usually set to Unmuted when using data modems. Follows Mute should be selected when the transceiver is being used with 2062 crossgate. Line Follows Digital Voice When this is selected, the Line audio will also be processed through the Digital Voice hardware. Line Out Level This setting adjusts the output level of the auxiliary 600 ohm balanced audio output port. Line In Level This setting adjusts the input level sensitivity of the auxiliary 600 ohm balanced audio input. Audio Record This option is used to monitor conversations. It utilises the line audio to listen to the received and transmitted audio. Connect an appropriate device to record the conversation using a cable (up 1.2 m in length) with connection specifica-

tion below. 21 Pin Auxiliary Connector Description 3.5mm Jack Connector Pin 7 8 Summed Record Audio Tip & Ring Ground Sleeve Custom Filter Bandwidth This section allows the audio bandwidth to be tailored to an operators requirements when using a custom filter. 78 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Collective Call Collective calls comprise of all-calls, group calls and sub-group calls which involve calling a number of Selcall IDs simultaneously. This is not an individual button in the Selcall menu as a transceiver can group call as a number of call types. For information on other call types please refer to Chapter 3 - Selcall, page 29. All call, Group call and Sub-group call must be enabled in the Barrett PRC-4090 HF SDR Programming Software (P/N BCA40001). Sending a Group Call It is recommended that transceivers should be programmed with a selcall ID ending in 0 as this is used for making group calls. When prompted to enter a Selcall ID for a chosen call type, the first digits represent the groups of IDs you wish to contact. Four Digit format All call eg. Entering 2000 will contact every transceiver on the channel with an ID that begins with 2 Group call eg. Entering 2300 will contact every ID on the channel that begins with 23. Sub-group Call eg. Entering in 2310 will contact every ID that begins with 231 Six Digit format Same as above. No more than the last 3 digits can hold the 0 value. eg. Entering 123000 will contact every transceiver beginning with 123 79 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION

Digital Voice (Encoding) Encoding can improve the reliability of commu-

nications over noisy channels where reception of analogue voice can be very poor. Poor voice quality can be improved mark edly by the use of digital voice modules to the point where barely usable frequencies are made clear. Secure Dig-

ital Voice allows users to encrypt their communications over HF therefore pro-

viding a secure HF network. Encoding on Encoding off Both Digital Voice and Secure Digital Voice capability can be utilised in Barrett 4000 and 2000 series HF Transceivers using Barrett digital voice modules which are designated as:

DV Digital Voice module with no encryption SDV-56 Secure Digital Voice module with DES 56 encryption

(No export licence required) SDV-256 Secure Digital Voice module with AES 256 encryption

(Export licence required) Signal-to-noise ratio conditions can change during communications between HF stations. The digital voice modules have auto baud capabilities which auto-

matically adjust baud rates up or down whilst communicating between the transceivers allowing the users to transmit and receive signals with optimal voice clarity. For more information on Digital Voice, please consult the Barrett HF Radio Digi-

tal Voice and Secure Digital Voice Operating Manual (P/N BCM40504). 80 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Export The export function of the PRC-4090 is predominantly used for diagnostic purposes and diagnostic and log files can be exported and sent to Barrett Communications. The Android version of the Barrett 4000 Series Remote Control App can be downloaded directly from the transceiver head. For further infor-

mation please consult the Barrett 4000 Series IP Connectivity Guide (P/N BCM40507). Settings Export 81 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Frequency Hopping This option requires an Export Permit. Frequency hopping can be used to limit performance degradation due to inter-

ference and to reduce the likelihood of interception. Frequency Hopping Spread Spectrum (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels. The transceiver employs a unique frequency hopping system that uses an exter-

nal GPS. Note: An external GPS must be connected and providing valid data for the frequency hopping system to operate. Selecting the Hopping Band Select a channel as per normal. This channel and mode is used by the trans-

ceiver to determine the hop band. Entering the Hopping PIN This code is entered under Settings < Security (see page 101). All of the trans-

ceivers that will be communicating on the same hopping band will need to have the same Hopping code. Hop Enabling and Disabling Hopping 1. Attach a GPS receiver to the rear of the transceiver. 2. Select a channel with a transmit frequency (i.e. not disabled). 3. Enter the Hopping Pin 4. Press the Hopping icon on the transceiver home screen to acti-

vate Hopping. Hopping voice communication can now be used. Pressing the Hopping key for a sec-

ond time (or pressing the back but-

ton) disables Hopping mode. 82 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Settings GPS Push GPS Push GPS Push is an additional option used in conjunction with the Barrett 4077 HF Map & Track Software and provides automated transmission of GPS location at set intervals. These intervals can be programmed using the Barrett 4000 Series Program-

ming Software (P/N BCA40001). For further information, please con-

tact Barrett Communications. GPS Push State GPS Push state enables or disables the automatic transmission of the GPS location. Privacy Key This allows the input of the GPS privacy key. This privacy key allows the transmission to be DES56 encrypted, so long as the receiving station has the same privacy key in order to decrypt the transmission

(DES56 encryption does not require export approval). Preamble Time Length of preamble transmitted at the start of the GPS Push call. Note: Read Only items are set in the Barrett 4000 Series HF Programming Software. See the appropriate manual for more information. 83 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION IO Settings Tap IO from the Settings screen to display the IO screen. A list of items that may be config-

ured is displayed. The current status of each of the items is displayed to the right. To reveal more items, either swipe down on the touch screen or press

. Settings I/O RS232 Connection This selects whether the RS232 connection is made via a direct connection to the top hotshoe auxiliary connector on the PRC-4090 or via a network (WiFi or Ethernet - please see 4000 Series IP Connectivity/Networking Guide [P/N BCM40507]). RS232 Network Encryption Enabling RS232 Network Encryption secures information transfers over RS232 networked connections. Disabling this feature removes any encryption from the RS232 network. RS232 Out (async. Indications) This setting enables or disables RS232 status information output from the transceiver via the top hotshoe auxiliary connector. Note: This command does not enable/disable RS232 control of the transceiver when the RS232 option is fitted. It is used to control the output of status information via RS232 used by some external programs such as vehicle tracking. 84 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION RS232 Baud Rate This menu option allows the selection of the RS232 Baud rate. The Baud rate setting is dependent on the external device/application con-

nected to the transceiver. Tap RS232 Baud Rate from the IO screen to display the RS232 Baud Rate screen. Select either: 9600 or 115200. External Alarm Type

(Not applicable to the PRC-4090) This sets the action of the external alarm out-

put when a Selcall is received by the transceiver. It can be set to either a pulse output (for use with a horn) where the output is activated 15 seconds on, 15 seconds off; or a constant output (for use with a rotating beacon). Both are reset by pressing or the PTT button. Select either: Latched or Pulsed. Antenna Select Behavior This master setting can override the pre-programmed channel antenna selec-

tion. This setting is designed to be used in conjunction with the PRC-4090 System Docking Station. This is not used for Manpack configurations. Select:

Per Channel (default): Antenna selection operates as per channel program-

ming. Antenna 1: All channels, regardless of programming, will transmit/receive using Antenna 1. Antenna 2: All channels, regardless of programming, will transmit/receive via Antenna 2. Antenna 1 For Antenna 1 see page 24. Antenna 2 This option is only active if connected to a Dual Port Antenna Switch Unit (P/N BCA40506) which can only interface with the System Dock-

ing Station. Note: 4075 Linear and 4075 Linear with ATU are not available for Antenna 2 Type. 85 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Select an antenna type from the following:

Antenna Type Select when... Base Station Base station antennas such as the Barrett 912 series are used. No tuning signals are emitted on channel change. 910 Mobile Ant Using a Barrett 910 automatic tuning mobile antenna 911 Auto Tuner Using a Barrett 911 automatic tuner 2019 Mobile Ant Using a Barrett 2019 automatic tuning mobile HF antenna 2018 Loop Ant Using the 2018 Mobile magnetic loop HF antenna 4011/4015 Auto Tuner Using a Barrett 4011or 4015 automatic tuner 4017 Auto Tuner Using a Barrett 4017 automatic tuner OEM Tuner 3040 tuner compatible (non-Barrett product) 411 Auto Tuner Using a Barrett 411 Automatic Tuner Disabled Antenna 2 not used 86 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Modes The current mode of transmission is displayed in the lower left hand corner (green background). The example opposite shows the transceiver in USB mode. Pressing and holding the mode will allow an oper-

ator to change the mode to USB, LSB, CF, CW or AM mode for the current channel Note: The mode icon will only temporarily set the mode for a selected channel, reverting to that chan-

nels programmed default mode after the channel is changed, or the transceiver is turned off. For further information on setting up modes for channels, see page 69. 87 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Mute The mute function suppresses the chan-

nel noise heard by the operator. It is designed to open (allow noise) when the transceiver detects audio, a large enough signal or a call (depending on the mute type selected). There are three types of mute available from the Home Screen. Press and hold the active mute icon to select from one of the following three mute types:

Mute Voice Mute SSL Mute Call Mute When using analogue voice, Voice Mute allows audio only when speech is detected on the selected channel. When Digital Voice is active, Voice Mute additionally opens for digital signals. Note: The voice mute sensitivity can be set to three levels. Allows audio only if signal strength exceeds the nominated threshold (analogue or digital signals). Note: The signal strength mute level can be set to three levels. Allows audio when a call is sent to the transceiver. When Digital Voice is also active, Call Mute allows audio only when digital voice traffic is detected. The example opposite shows SSL Mute. After two seconds, the Mute indi-

cator is hidden and replaced by the channel label. 88 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Audio Mute SSL Mute Call Mute Each mute type has two primary mute states: Enabled or Disabled. However, the Enabled state can be either open or closed. Each of these states is further described below. Enabled and Closed: No trans-

mission audio is currently being detected by the transceiver. No sound is heard. Enabled and Open: Transmission audio has been detected by the transceiver. This state is tempo-

rary and will automatically revert to mute Enabled and Closed state once audio is no longer detected. Enabled and Closed Enabled and Open Disa-

bled Disabled: Audio is not censored and all noise can be heard. Tapping the mute icon will toggle the mute state between Enabled and Disa-

bled. Settings Mute Tapping Mute from the Settings Menu displays the Mute settings screen. Voice Mute Sensitivity refers to the hardness of the voice mute and its sensitivity to voice activity on a channel. Signal Strength Level refers to the level at which the mute (squelch) opens. When set to low, the mute will open on a relatively low level of received signal. For high, the mute will open for a relatively high level of received signal. 89 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Network This menu can be accessed from the Settings menu. Settings Network The PRC-4090 HF SDR Transceiver has the ability to interface with IP networks, allowing mobile cellular handsets, tablets and desktop PCs to connect directly to the transceiver via Ethernet or WiFi with the use of specialised adapters. For more information, see the Barrett IP Connectivity and Networking Guide (P/N BCMPRC-40907). When using a 4050/4090 Control Handset without a docking station, a PRC-

4090 Handset USB Interface (4090-01-27) must be attached to the rear of the handset. The PRC-4090 Handset USB Interface is attached as shown in the diagrams below. Once in place, turn the wheel until unit is secure. IMPORTANT: Ensure that the USB Interface Unit is attached BEFORE the USB device is inserted. 90 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION The diagram below shows the possible connections between the above PRC-

4090 Control Handset and an IP network. 1 2 3 4 5 PRC-4090 Control Handset (P/N 4090-01-09) PRC-4090 Handset USB Interface (4090-01-27) WiFi Adaptor (P/N BCO40508) USB to Ethernet Adaptor with USB ports (P/N BCA40505) Ethernet (RJ45) cable 91 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION The diagram below shows the network connection from a Barrett PRC-4090 HF SDR Transceiver in Mobile configura tion (P/N 4091-00-10). 1 2 1 2 Barrett PRC-4090 HF SDR Transceiver in Mobile configura-

tion (P/N 4091-00-10) Ethernet (RJ45) cable 92 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Noise Reduction (NR) Selecting NR from the handset allows the Digital Signal Processor (DSP) noise reduction depth to be adjusted to suit the operators requirements. Tap NR from the Home screen to cycle through the options: Off, Low, Medium, or High. The example shows an NR set to High. After two seconds, the NR indicator is hidden and is replaced by the channel label. When the noise reduction system is active (low, medium or high) the NR icon displays an indication of the set-

ting. NR NR Off NR Low NR Medium NR High 93 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION RF Settings Tap RF from the Settings menu to access the RF menu. A list of items that may be config-

ured displays. A brief description of each of the items is described beneath the items. The current status of each of the items is displayed to the right. To reveal more items, either swipe down on the touch screen or press

. Settings RF Rx Preamp Enables or disables the RF pre-amplifier. The pre-amplifier provides an addi-

tional receiver gain of 5 dB. Generally, the RF pre-amplifier is switched off when an automatic mobile antenna is in use as these antennas have a built-in RF pre-amplifier. Tx Over Beep When this option is selected, the transceiver transmits a short tone after the PTT button is released. The tone provides an audible indication to the Operator at the remote station that the local station has stopped transmitting. 94 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Tx Timeout When this feature is enabled, the transceiver will stop transmitting if the PTT button is held on for more than the allowed time limit eg. if the handset is accidentally wedged under a seat. Releasing and pressing the PTT button will re-enable transmission. Set the maximum transmit time to either one, two, or three minutes. Alterna-

tively, this transmit timeout can be disabled. Noise Blanker This setting allows the predictive noise blanker to be switched on or off. The noise blanker is useful to reduce repetitive vehicle related electrical interference eg. noise from a windscreen wiper motor. Note: The noise blanker will not be effective in situations where for example, exter-

nal power line noise is blanketing the receiver. Select either: Off or On. Note: In certain situations noise blankers can cause intermodulation in receivers. In these cases the noise blanker should be disabled. Tx Power Level This section sets the global RF power output for all channels in the transceiver. Select either: 10 W, 30 W, 125 W, or 150 W in SDS mode. Select either: 10 W, 30 W in Manpack mode. AGC Hang Automatic Gain Control (AGC) Hang delays the AGC systems gain response after a signal level decreases to zero. This prevents receiver noise for the hang period. Select either: Hang Off or Hang AGC. Broadcast Filter With the Broadcast Filter enabled, strong broadcast signals below 1.6 MHz will be filtered out. Select either: Disabled or Enabled. 95 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Scanning Scanning allows the transceiver to monitor several channels for incoming calls. For example, a station calling a station that is in scanning mode can send a Beacon Call on any channel knowing the station it is calling is monitoring all its available channels. A response from the scanning station will only occur on channels that are open for communication. It is particularly useful as the nature of HF signal propagation means that not all channels are available for commu-

nications at one time. Stations in scan can also monitor channels for voice activity or signals received that have signal strengths over a preset level. The transceiver will come out of scanning mode for the following reasons:

A Selcall is received. Signal Strength Level (SSL) mute is selected and a signal with a level greater than the pre-set threshold is received. Audio (syllabic) mute is selected and a voice signal is detected. The Scan icon on the Home screen, initiates scanning once pressed, according to the currently selected scan table, see Scan Settings page 97. If no scan tables are available a No Scan Channels error will be shown. Whilst scanning, several options on the screen are hidden (Channels, Hop and Tune) and the Scan icon is animated. Scan To stop scanning, press or the scan icon. Pressing the Scan icon for longer than 1 second will bring up 1 of 3 possible screens:

The Scan Settings menu (see page 97) when ALE 2G or 3G are not ena-

bled. A list of the available ALE 2G Preset Maps when ALE 2G is enabled (See Barrett ALE 2G and 3G User Guide (P/N BCM40524)). A list of the ALE 3G Pool entries (See Barrett ALE 2G and 3G User Guide

(P/N BCM40524)). 96 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Scan Settings To display the Scan Settings, select Scan from the Settings Menu. Tap Scan from the Settings screen to display the Scan screen. A list of items that may be config-

ured is displayed. To reveal more items, either swipe up on the touch screen or press

. Settings Scan Scan Rate This defines the rate of which the scanning should be performed. Select the scan rate applicable to non-Selcall scan channels, either: 300, 500, 700, 1000, 1500, 2000, or 5000 ms. Dwell Time Select the length of time the transceiver dwells (waits) on a channel after scan has been stopped by signal strength level (if signal strength level mute is set) or voice activity (if audio mute is set). Select between 1 and 10 seconds. Resume Time Set the time period after which the transceiver will automatically resume scan-

ning from the last operation eg. after a key press or PTT. Select either: Off, 1, 2, 3, 5, 10, 15, 20, or 30 minutes. Scan Table Select the Scan Table to be used when the transceiver is put into scan mode, or if enabled, when scan resume occurs. There can be up to eight Scan Tables with 30 channels in each. Note: When scrolling through the Scan Tables to make a selection, only Scan Tables with channels entered will display. If none of the Scan tables have any channel entries, the message All Scan Tables Empty displays. 97 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Tap Table Selection from the Scan screen to display the Table Selection screen. To reveal more items, either swipe up on the touch screen or press

. Each entry shows the name of the table and the respective number of channels. Scan Tables Note: All channels are displayed in numerical order within the scan table with respect to the entry number. There are a maximum of 30 entries in each table. Tap Edit Scan Tables from the Scan screen to display the Selcall Scan Tables screen. The example shows two scan tables which may be edited. Each table reveals the name of the table, the antenna, the number of channels in the table and the chan-

nel numbers. Add a Scan Table To add a Scan Table, tap from Scan Settings < Edit Scan Tables. Scan Table Name This is the name of the scan table. Without setting this, the name will default to TABLE. 98 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Scan Table Channels Tap the checkboxes adjacent to the channels you wish to choose and then tap

. After configuring the above items, tap to add the table. A confirmation message displays. Tap Yes. Delete a Scan Table Select the table to be deleted, then tap and hold for three seconds. A confirmation message displays. Tap Yes. 99 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Secure Display Mode This mode stops the channel frequency being shown on the front panel. Channel frequencies are uneditable, as are labels. The pack and diagnostic information becomes irretrievable and cannot be exported. This mode can only be enabled using the Barrett Communications 4000 Series Programming Software

(P/N BCA40001). 100 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Security Settings This section is used to configure the security settings for the transceiver. Tap Security from the Settings menu to access the Security menu. A list of items that may be config-

ured is displayed. The current status of each of the items is displayed to the right. This menu is dependant on the Options installed in a transceiver. Settings Security 101 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Use OEM Selcall Privacy Key This setting indicates whether the OEM Selcall Privacy Key is active. OEM Selcall Privacy Key Turning this on allows data type Selcalls (Pagecall, GPS, Status, Telcall) on OEM channels to be encrypted with DES-56 encryption. See page 31 for more information on OEM Selcall. Frequency Hop PIN The Hopping PIN (if the Frequency Hopping Option is enabled on the trans-

ceiver) is 8 digits long and is usually provided by a network administrator. The Hopping PIN determines the Hop bandwidth. For instance:

Hopping PINs 00000000 to 19999999 are used for hopping 2 kHz Hopping PINs 20000000 to 49999999 are used for hopping 16 kHz Hopping PINs 50000000 to 99999999 are used for hopping 128 kHz Hopping up to 2 kHz is useful for narrow band antennas in situations such as antenna tuners in manpack operation. Hopping up to 128 kHz can be used with wideband antennas such as base station broadband antennas. Please note that all transceivers that wish to communicate via Hop-

ping need to have the same Hopping PIN and frequency hop rate configured. Note that once entered, the PIN can never be retrieved or viewed for security reasons. Frequency Hop Rate The Frequency Hop Rate changes the number of hops per second used by the encrypting algorithm. Select either Standard (5 hops per second), Medium (15 hops per second) or High (25 hops per second). OEM Secure Type This displays whether a scrambler has been installed and the name of the scrambler. OEM Secure Key If keys are installed, keys can be selected from this menu. 102 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Secure Digital Voice/Data Key The Secure Digital Voice and Data Key is used for secure digital voice and 3G Data calls. Keys need to be entered into the transceivers SDV module using the Barrett Communications Key Management Software. Select between 1 and 255. All transceivers in the network must have the same key number in order to communicate. For more information, consult the Digital Voice manual (P/N BCM40504). Digital Voice Baud Rate The Digital Voice Baud Rate setting fixes the baud rate at 600/700bps, 1200bps, 2400bps or Auto. Setting this rate to Auto will allow the transceiver to auto-

matically adjust the baud rate. Selcall Secure Call Hop Rate The Selcall Secure Call Hop Rate is the rate at which the secure call hopping moves between transmission frequencies. Unlike frequency hopping, it doesnt utilise GPS. Select either Standard (4 hops per second) or High (15 hops per second). Selcall Secure Call Code Enter a four-digit number. Both the transmitting and receiving stations must have the same code. SDV/4026 Programming Mode If the transceiver is fitted with an SDV module, this option enables the SDV to be programmed. Select either Disabled or Enabled. When enabled, the functionality of the transceiver is disabled. After program-

ming the SDV, reboot the transceiver. For more information, consult the Digital Voice manual (P/N BCM40504). Service Mode A mode for use when servicing a transceiver. Only accessible by PIN. 103 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Enable Power On PIN Selecting this menu option allows a user to manually change whether the trans-

ceiver asks for a password upon start-up. This password is set using the Barrett 4000 Series Programming Software. Transceiver Lock The Transceiver Lock function locks a remote transceiver via Selcall and uses the remote transceivers pre-set Transceiver Lock/OTAZ PIN. This function does not remove any settings and can be reversed by entering the Transceiver Lock/OTAZ PIN on the front panel of the transceiver. Over the Air Zeroise (OTAZ) OTAZ will clear the following information from a remote transceiver via a Selcall and the entry of the Transceiver Lock/OTAZ PIN for that station:

all channel information all Options all ALE 2G and 3G information ALL security PINs apart from the Transceiver Lock/OTAZ PIN encryption keys Zeroise Zeroise will clear the following information from the local transceiver:

all channel information all Options all ALE 2G and 3G information ALL security PINs apart from the Transceiver Lock/OTAZ PIN encryption keys Remote Access Password This allows a user to set a password used when accessing the transceiver remotely via serial or network connections e.g. when using the Barrett Remote Control App, the Desktop console or programming via PC. 104 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Stealth Mode Stealth mode operates as a quiet or silent mode of oper-

ation. When active, all trans-

ceiver noises are muted, key lights are disabled and the backlight is set to the lowest setting. To enable stealth mode, tap the icon in the swipe menu. When active, the icon will be green. Pressing PTT while stealth mode is active will temporarily deactivate stealth mode, rein-

stating lights and audio. Stealth mode will re-activate after 30 seconds of inactivity. Off On 105 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Theme Schedule The Theme Schedule allows the automatic transition between display themes. This change of themes can be of use for chang-

ing, for instance, between a daytime theme and a night-

time theme. To set a theme schedule, select an alternate theme, the time when the theme will switch on and when it will switch off. Finally, enable the Theme Sched-

ule by changing the Theme Schedule Status to Enabled. Default Black on Green Green on Black Red on Black 106 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Tuning Tuning occurs automatically when PTT is pressed and if the appropriate antenna tuner type has been selected in RF Set-

tings. Tuning can also be activated by pressing and holding the tune icon on the front screen. Tune Tuning from the tune icon on the front screen will vary in response depending on the tuner type selected. If a non-ATU antenna is selected, the transceiver will transmit - at the power level selected - on the current channel. This is transmitted at 1.6 kHz above the Suppressed Carrier Frequency (SCF) (displayed frequency) of the channel until the tune icon is released. If an ATU antenna has been selected, pressing the tune icon will begin a tune cycle. Tune Tx power (usually between 10 and 30W) is automatically set by the transceiver for the duration of the tune cycle. When the tune cycle begins, the tune icon can be released. Once the tune cycle has finished, the transceiver transmit power will return to set levels. The keypad will illuminate red whilst the transceiver is tuning. When the tune process is completed the display will show Tune Ok, or Tune Failed in the top left-hand corner. The VSWR briefly displays below the fre-

quency indicating the efficiency of the selected antenna. 107 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Zeroise A Zeroise of the transceiver can be per-

formed in two ways:

A fast emergency zeroise can be per-

formed by pulling and turning the on/

off switch to the Z position. A ten sec-

ond countdown will begin and a zer-

oise will be performed when zero (0) is reached. From the Settings < Security Menu, select Zeroise. The countdown will then begin. Zeroise will clear the following information from the local transceiver:

all channel information all Options all ALE 2G and 3G information ALL security PINs apart from the Trans-

ceiver Lock/OTAZ PIN encryption keys OR Settings Security 108 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION INSTALLATION 7 This chapter contains the following sections:

Introduction Mobile Installations Base Station Installations Marine installations 109 Introduction This section provides instructions for the installation of land based HF communi-

cation equipment. Most of the installation work can be performed by non-tech-

nical personnel if they carefully follow the instructions given in this manual. However, it is recommended that the completed installation be checked by a suitably qualified technician. In some equipment configurations, technical adjustment is required for the equipment to operate correctly. Note: Some equipment has specific instructions supplied with it. Those instructions over-ride the general guidance of this manual, and must be followed in detail. This chapter begins with connecting a secondary head to the rear of the trans-

ceiver and then outlines the most common configurations beginning with man-

pack installations, followed by mobile, base station and marine installations. Please read this chapter carefully when considering the best antenna set-up for your situation. For further information on these installations, please consult the guide pro-

vided with your antenna or contact your Barrett dealer. Please note: When unpacking your order, check the contents against the packing notes provided. Before discarding the cartons, check that all accessories have been removed and are not mislaid in the packing material. Inspect the equipment for any transit damage. If damage has occurred, notify your supplier immediately. Failure to do this could affect the warranty covering the equipment. 110 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Installing a Secondary Control Handset The PRC-4090 can support a secondary control handset when paired with a PRC-4090 System Docking Station. This secondary handset can be purchased on its own from Barrett Communications and controls the transceiver in the same manner as the primary. This may be useful in multiple situations such as for security reasons, a secondary head may need to be located in another room;

personnel carriers may require a head be accessible for those in the back of the vehicle; or marine installations where a secondary head may need to be away from the primary body. Ensure the transceiver is switched off before connecting secondary control handset. Note: If only the secondary control handset is connected then the Ethernet function-

ality of the SDS will not work. 111 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

Manpack Installations When combined with a battery pack, the PRC-4090 easily adapts to suit man-

pack configurations. The Control Handset can be easily mounted to molle or webbing with a molle attachment. 112 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Control Handset Mounting The PRC-4090 Control Handset can easily be mounted to webbing or molle using the PRC-4090

(P/N Molle Attachment 4090-05-02). The transceiver can be stored screen facing out-

wards or reversed so that the screen is protected. The Molle Attachment can also be used to attach to solid surfaces. 113 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Audio Routing When in manpack configuration, all audio and microphone options are active as illustrated by the below images. Volume for both the PRC-4090 Control Handset and the H250 handset are controlled by the PRC-4090 Control Handset. Control Handset Control Handset mic and speaker are enabled Volume control via the Control Handset Control Handset and H250 Control Handset mic and speaker are enabled H250 mic and speaker are enabled Volume control via the Control Handset ON EMERG. OFF Z ON EMERG. OFF Z 114 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Battery Pack The Barrett PRC-4090 Transceiver can be powered in multiple ways. For man-

pack use, it has been designed to use the Barrett PRC-4090 16Ah Battery pack or external military battery. The PRC-4090 Battery Pack has an in-built charger/

battery management system. This battery pack can be charged in multiple ways as outlined over the following pages. With the battery pack fitted, the transceiver can be operated and the battery pack charged simultaneously when a DC input of between 10 V DC and 60 V DC is supplied to the unit. Additionally, the PRC-4090 battery pack can be charged connected or discon-

nected to the manpack using the AC/DC input universal power adaptor unit or directly from a 12 or 24 V tactical solar panel (MPPT charger fitted for optimised current input), or BB series military battery. 115 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Removing the battery isolator The 16Ah battery pack (P/N 4090-03-05/BCA409005 ) is, by default, shipped with the battery cells isolated (see below). To use the battery, the cells must be connected. Follow the steps below to switch the isolator fromBattery Isolated to Battery Connected. Isolated Connected BATTERY ISOLATED BATTERY CONNECTED BATTERY ISOLATOR BATTERY PACK Li-ion CHARGE STATUS DC IN 10-70 V BATTERY ISOLATED 0-5%

5-20%

20-40%

BATTERY CONNECTED BATTERY ISOLATOR 40-60%

60-80%

80-100%

BATTERY ISOLATOR BATTERY CONNECTED BATTERY ISOLATED BATTERY PACK Li-ion CHARGE STATUS DC IN 10-70 V BATTERY ISOLATOR BATTERY CONNECTED 0-5%

5-20%

20-40%

BATTERY ISOLATED 40-60%

60-80%

80-100%

1. Ensuring that nothing is connected to the battery, use a Philips head screw driver to remove the screws securing the isolator in place, as shown opposite. 2. Remove the isolator. 116 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 3. Turn the isolator 180o and gently replace the isola-

tor evenly in the socket, ensuring that Battery Con-

nected is now at the top of the isolator. 4. Return the screws to their original positions. The e-ink display will turn black. 5. Connect the charger to the battery to begin use. Re-isolating the battery 1. Ensuring that nothing is connected to the battery, remove the screws securing the isolator with a Philips head screw driver. 2. Using an appropriate tool, gently and evenly prise the isolator from the socket (see opposite). 3. Turn the isolator 180o and gently replace the isolator evenly in the socket, ensuring that Battery Isolated is now at the top of the isolator. 4. Return the screws to their original positions. 117 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION AC/DC Input Universal Power Adaptor Unit P/N 2090-03-01 For operation from a mains voltage between 100-254 V AC sources:

118 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Solar Panel P/N 2090-03-02 or 03 119 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Military battery The PRC-4090 can interface with off-the-shelf Military standard batteries such as BB series batteries. To interface with such batteries, the adaptor and interface cable are required. Battery Charge Indicator of the 4090 120 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION The e-ink display of the PRC-4090 Battery Pack displays five dots indicating battery charge levels:

Zero dots

<5%

Solid 1 black dots 5%-20%

Solid 2 black dots 20%-40%

Solid 3 black dots 40%-60%

Solid 4 black dots 60%-80%

Solid 5 black dots 80%-100%

When charging the 4090 Battery Pack, the LED indication will animate. 5 running dots: Filling up 0 - 20% charge 1 solid dot and 4 running dots: 20% - 40% charge 2 solid dots and 3 running dots: 40% - 60% charge 3 solid dots and 2 running dots: 60% - 80% charge 4 solid dots and 1 dot blinking: 80% - 95% charge 5 dots: charge complete The Control Handset display will also display the following icon when charg-

ing:

121 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Antenna Options The PRC-4090 manpack can be used with the 10 metre throw over long-wire provided or the optional 3 metre collapsible whip. Note: Either the whip or the long-wire can be used but not both together. Collapsible Whip Antenna (P/N 4090-02-07) The gooseneck is fitted to the whip antenna stud and the whip to the gooseneck by bayonet fitting. The whip antenna should then be unfolded to its maximum height. If using the Barrett manpack while walking in the backpack configura-

tion it is suggested that while in receive standby mode the collapsible antenna be only extended to half height and secured using the Velcro tab. When a call is received extend the antenna to full height before transmission. When using an un-tuned antenna such as the whip or the long-wire the selec-

tion Antenna Type (see page 24) in the standard menu should be used to enable the automatic tuner i.e. select Whip/Long-wire operation. When this is selected the in-built tuner automatically tunes the whip or long-wire whenever the unit transmits after a channel change. Note: Do not use the whip antenna near metallic structures. This can produce high voltages within tuner and may cause damage. Whip antenna fully extended Whip antenna and adjuster in suggested folded posi-

tion for receive operation while used as a manpack 122 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Throw Over Long-wire Antenna (P/N 4090-02-06) The long-wire antenna should be unfurled and the end away from the man-

pack Transceiver should be attached to any structure available and as high as possible. When using an un-tuned antenna such as the whip or the long-wire the selec-

tion Antenna Type (see page 24) in the standard menu should be used to enable the automatic tuner i.e. select Whip/Long-wire operation. When this is selected the in-built tuner automatically tunes the whip or long-wire whenever the unit transmits after a channel change. 1 3 5 6 2 4 1 2 3 Balun Spool Cord 4 Weight 5 Antenna 6 Coaxial connector 123 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION DIRECTION OF RECEIVING STATION 45 1 3 2 DIRECTION OF RECEIVING STATION 1 Antenna 2 3 Earth (ground) PRC-4090 Transceiver (P/N 4090-00-01) 124 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION DIRECTION OF RECEIVING STATION AT RIGHT ANGLES TO ANTENNA 1 3 2 1 Antenna 2 3 Earth (ground) PRC-4090 Transceiver (P/N 4090-00-01) 125 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Single-wire Counterpoise (P/N 4090-02-09) When using either a whip or the long-wire antenna use of the counterpoise supplied is recommended for better efficiency. This is connected to the PRC-

4090 via the ground post. 126 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Broadband Dipole Antenna (2090-02-03) The Tactical Broadband Dipole Antenna is a dipole antenna with loading to allow broad-

band operation. For operation, each side of the antenna is unwound to its full length. Throwing cords are provided that can be used to elevate the antenna or tie it to ground for an inverted V configuration. The antenna will handle continuous data and CW transmission with a Barrett 30 W manpack transceiver. Only low duty cycle voice operation is supported for operation with 100 W transmitters. The antenna can be used in a number of configu-

rations, depending on structures available for elevation. Tactical Broadband Dipole Antenna Configurations Horizontal Dipole The horizontal dipole has maximum gain on the broadsides of the antenna and reduced gain along the axis. Height above ground affects radiation angle. Lower heights give higher angle radiation, better for NVIS (short distance). Higher heights give lower radiation angle, better for long distance communication. 127 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Inverted V The inverted-V has a more omni-directional pattern than the Horizontal Dipole, with lower maximum gain. The ends of the antenna should be at least 0.5 m above ground. Suitable mainly for NVIS and medium distance. Sloping Dipole Radiation with the Sloping Dipole becomes more directional, with increased gain in the direction of the lower end of the antenna, and reduced gain towards the higher end. 128 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Inverted U The inverted U has a radiation pattern between that of horizontal dipole and inverted V. For optimum performance, the radiating elements should be fully unwound, and should not touch the ground. Suitable for NVIS to medium dis-

tance. Longer distance performance will be enhanced by erecting the antenna at a height of 10 m or more. 129 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Tuned Wire Dipole Antenna (2090-02-01) The Tactical Tuned Dipole Antenna is a tuned antenna with frequency labels to indicate tuned lengths. For operation, each side of the antenna is unwound to the tuned length for the frequency required. For operation at a labelled frequency, the label should be level with the end of the winder as shown in the picture below. Lengths for interme-

diate frequencies should be estimated and tied off appropriately. The remaining wire remains on the winder. The throwing cord can then be used to elevate the antenna. The antenna will handle 100 W continuous data and CW transmission. The antenna can be used in a number of configurations, depending on structures available for eleva-

tion. z h M 3 1 z h M 9 z h M 6 z h M 8 Tactical Tuned Wire Dipole Antenna Configurations Horizontal Dipole The horizontal dipole has maximum gain on the broadsides of the antenna, and reduced gain along the axis. Height above ground affects radiation angle. Lower heights give higher angle radiation, better for NVIS (short distance). Higher heights give lower radiation angle, better for long distance communi-

cation. 18Mhz 20Mhz 11Mhz 18Mhz 20Mhz 11Mhz 130 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Inverted V The inverted-V has a more omni-directional pattern than the Horizontal Dipole, with lower maximum gain. The ends of the antenna should be at least 1 m above ground. Suitable mainly for NVIS and medium distance. 2 0Mh z 1 8Mh z 1 1Mh z z h M 1 1 z h M 8 1 z h M 0 2 Sloping Dipole Radiation with the Sloping Dipole becomes somewhat asymmetrical, with increased gain in the direction of the lower end of the antenna, and reduced gain towards the higher end. 2 0Mh z 1 8Mh z 11Mhz 20Mhz 18Mhz 11Mhz 131 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Single Ended For rapid deployment, with reduced but still acceptable efficiency, the antenna can be operated single ended. In this configuration, one side of the antenna

(labelled antenna) is unwound to the desired frequency and tied to an ele-

vated structure. The central balun should be located close to the ground, and the remaining side of the antenna (earth) partly unwound (5 to 10 m) and stretched out on the ground below the radiating element. 20Mhz 18Mhz 11Mhz 18Mhz 20Mhz 11Mhz 132 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

Mobile Installations When combined with a PRC-4090 System Docking Station and Anti-vibration Plate, the PRC-4090 is easily adapted to suit mobile installations. While in this configuration, the PRC-4090 retains its ability to interface with the full range of Barrett peripherals including the 4049 Automatic Tuning Mobile HF Antenna and Barrett Linear Amplifiers. 133 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION PRC-4090 System Docking Station Rear 1 2 3 4 5 6 1 2 3 4 5 6 Earth stud Coaxial connector ATU connector PRC-4090 Handset connector Ethernet DC Power In 134 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

Assembly 1. Place the SDS on top of the Anti-Vibration Plate, ensuring that the feet and capstans are correctly aligned and drop into the keyway slots. 2. Push the SDS towards the rear of the anti-vibration plate, as shown below, so that the capstans and SDS click into place. 3. To secure the SDS, first ensure that the lock clamps are connected to the slots on the front of the SDS, then turn the fasteners a quarter turn. 135 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

SDS Feet Configurations The feet attached to the bottom of the SDS can be configured to suit the anti-vi-

bration plate and the PRC-4022 Power Supply. The below images show the appropriate feet positions for each configuration. SDS to fit Anti-Vibration Plate:

SDS to fit PRC-4022:

136 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Handset Docking Station Configurations The Handset Docking Station can be configured for either portrait or landscape use of the Control Handset. The exploded diagrams below show each of these configurations. Portrait Configuration Landscape Configuration 137 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Audio Routing When using the Handset Docking Station, the audio from the PRC-4090 Control Handset is routed differently depending on the accessories attached. Below outlines the most common configurations and their audio routing. Control Handset, H250 and Exter-

nal Speaker Control Handset mic and speaker are disabled 7 External speaker is enabled H250 mic and speaker enabled Volume control via the Control Handset 7 Control Handset and External Speaker Control Handset speaker is disa-

bled Control Handset mic is enabled External speaker is enabled Volume control via the Control Handset 7 138 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 7 Control Handset and H250 Control Handset mic and speaker are disabled H250 mic and speaker enabled Volume control via the Control Handset Control Handset Control Handset mic and speaker are Enabled Volume control via the Control Handset 139 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Complete Mobile Assembly 2 3 4 1 140 8 6 5 ON EMERG. OFF Z 7 1 2 3 4 5 6 7 8 PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) H250 Tactical Handset (P/N 4090-01-14) PRC-4090 Handset Cradle (P/N 4090-05-01) Ext. Speaker (P/N 4090-01-33) PRC-4090 HF SDR Transceiver (P/N 4090-00-01) PRC-4090 System Docking Station (P/N 4090-05-00) PRC-4090 Anti-Vibration Mounting Plate (P/N 4090-05-07) Hotshoe Accessory connector BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Transceiver Mounting The following points must be considered when mounting the transceiver. Safety It is essential that the transceiver be mounted in a place where it cannot cause injury to the occupants of the vehicle in the event of a motor vehicle accident. For this reason overhead mounting is not generally recommended and under dash mounting must take into account the possibility of injuring the legs of front seat occupants. Convenience The chosen position for the transceiver or control handset, (if in mobile config-

uration) should be one which allows convenient operation. Positions which are often used are:

On the centre console In place of the glove box Behind the seat Under the seat Under the dash board (if safe). Where in mobile configuration, only the control handset need be mounted con-

venient to the operator. The transceiver may be mounted under a seat, in the luggage compartment or any other appropriate place within the vehicle (which allows for sufficient air flow). All equipment should be positioned in such a way that convenient access for maintenance is provided. Strength It must be assumed that the vehicle will be used on rough roads and in many cases off road. Hence, the mounting of equipment must take into account the severe vibration and shock that may be encountered. Transceivers may only be mounted to structural components of the vehicle body and not on interior panels. In some cases, the area around the transceiver mounting may need reinforcement. Precautions should be taken to ensure fixing screws etc. cannot vibrate loose. 141 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Air Circulation The PRC-4090 relies on air flow around cooling fins to dissipate heat generated by the transmitter. The mounting position must allow free airflow around these fins. Obstruction The installation of a transceiver into a vehicle should not inhibit the normal use of the vehicle. Before selecting equipment positions, check that normal opera-

tion of steering, foot pedals, gear change, hand brake etc. are not impeded, and that heater or air-conditioning outlets, glove box and doors are not obstructed. Always check that the drilling of mounting screw holes will not damage electri-

cal wiring, heater hoses or hydraulic lines. Power Wiring Connect the red positive and black negative wires from the transceiver power cable to the positive and negative terminal of the battery. Do not connect to the ignition switch or internal fuse panels as vehicle wiring to these points is of insufficient current capacity, causing voltage drop, possible noise interference and damage to cables through overheating. To prevent this, consider the fol-

lowing:

Route the power cable away from high tension ignition wiring. Secure the power cable, either to other wiring or the vehicle body, with suitable cable ties. Where wiring passes through bulkheads, provide appropriate protection to prevent insulation being damaged. If an isolation switch is fitted between the batterys negative terminal and the vehicle chassis then it is important to connect the radios negative supply cable to the chassis side of the isolation switch. Grounding Ideally the transceiver should be mounted as close as possible to the antenna with a common grounding (earth) point being used for both the antennas ground (earth) connection and the transceivers ground (earth) connection. See page 147, page 150, page 144 and page 183 for additional informa-

tion regarding appropriate antenna grounding (earthing). 142 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Antenna Mounting The antenna mounting must provide a strong secure anchorage for the base of the antenna. To obtain maximum radiation, the antenna base must be well bonded electrically to the vehicle chassis. Paint, dirt, rust, etc. should be removed from the respective fixing points. The mounting point must provide a low resistance electrical path to the main vehicle metallic structure. Due of the need to reduce the size of HF antennas so that they can be fitted to a vehicle, mobile antenna bandwidth becomes quite narrow and hence tuning is critical. In most cases the only tuning adjustment that can be affected is adjust-

ment to position. Particular attention must be given to the antenna position if satisfactory performance is to be obtained. Refer to the instructions supplied with the antenna you have selected. Antenna Feed Cables Antenna feed cables should be run (as far as possible) away from other vehicle wiring and especially away from ignition high tension wiring. Where passing through body panels or internal bulkheads, grommets must be used to protect the cables. Water-proof connectors must be used when they are outside the vehicle. Voltage Standing Wave Ratio (VSWR) After installation it is recommended that the VSWR of the antenna should be measured for each channel. The instructions supplied with each antenna will detail this operation. Noise Suppression Noise generated by motor or electrical accessories on the vehicle may cause objectionable interference to the received signal. This noise enters the receiver either by means of the battery leads or the antenna system. Providing that the recommendations concerning battery wiring given earlier in this manual are followed, noise injected via the battery lead is unlikely to be significant. Most noise problems result from pick-up by the antenna. Practical cures involve either preventing the noise from being generated or minimising it from being radi-

ated by the wiring connected to the noise source. Please note that some newer fuel injected engines emit very strong EMI (Elec-

tromagnetic interference) noise levels across the HF radio band, which is near impossible to suppress. For these installations, moving the position of the antenna to another position on the vehicle may reduce the noise effect but full elimination of noise during engine running may never be achieved. Please note that this is not unique to the Barrett PRC-4090 transceiver as all transceiver makes will suffer similarly from the effects of this noise under these conditions. 143 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION General Noise Suppression Tips When searching for sources of noise, some of their characteristics can be help-

ful in identification:

Petrol engine ignition noise and contact breaker noise is a sharp staccato plop varying with engine speed. It is only with this class of noise that the impulse noise limiter incorporated within some transceivers is effective. Noise from other sources generally has a more mushy sound. That from the alternator/generator may only be troublesome over a limited range of engine speed and can also be influenced by the state of charge of the battery. The noise from instrument regulators may depend on the battery voltage, the reading of the instrument and the length of time the system has been switched on. For this reason, the search for noise sources must be done thoroughly to prevent noise from apparently reappearing after the instal-

lation has been completed. Electric motors generate a whining sound. Do not forget to check wind-

screen wipers, electric fuel pumps, heater and air conditioning fans and other motors which operate only on an intermittent basis. 144 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 4049 Automatic Tuning Mobile HF Antenna

(Barrett P/N BC404900) The Barrett 4049 automatic tuning mobile HF antenna plugs directly into the rear of a PRC-4090 System Docking Station using the cables supplied. Optional PRC-4090 Control Handset Extender Cable - 6.0 metres (4090-01-13) Important: PRC-4090 transceivers must have the 4049 antenna option set during programming. Connection Details for a PRC-4090 Transceiver with Mobile Pack and 4049 Automatic Tuning Mobile HF Antenna 3 5 4 5 1 6 9 7 _

+12 V DC 10 7 2 8 145 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 1 2 3 4 Barrett PRC-4090 HF SDR Transceiver (P/N 4090-00-01) PRC-4090 System Docking Station (P/N 4090-05-00) and Anti-Vibration Mounting Plate (P/N 4090-05-07) PRC-4090 Control Handset (P/N 4090-01-09) and Control Handset Docking Station (P/N 4090-05-03) Barrett 4049 Automatic HF mobile antenna (P/N 4049-00-10) 5 Ground (earth) Interface cable 6 m - integral coaxial/control with connectors to suit 4090 SDS (P/N 2019-00-02) IP Network Connection via RJ45 cable 6 7 8 DC power cable and connector - 6m (P/N 4090-03-06) 9 Circuit Breaker 10 12 V (or 24 V) DC Battery 146 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Mounting the Barrett 4049 Automatic Tuning Mobile HF Antenna The Barrett 4049 antenna should be mounted in positions similar to those illus-

trated in the diagrams on the following pages. Select a position free from exces-

sive vibration. A bracket, fabricated to withstand the forces and vibration that can be expected during off-road driving, should be used to mount the antenna to the vehicle. When locating the mounting position for the antenna ensure that the antenna body, when flexing on its vibration mount, cannot come into contact with other parts of the vehicle. The antenna should be mounted as far from surrounding objects on the vehicle as possible. The antenna is supplied standard with two sections (Barrett P/N: BCA201901), a tapered black spring (Barrett P/N: BCA201903), an antenna installation guide and a pre-terminated six metre control cable to suit the Barrett 4049 antenna to transceiver. A six metre (Barrett P/N: BCA201904) or ten metre (Barrett P/N:

BCA201905) extension cable for the control cable is also available. The control cable should be routed into either the engine compartment or boot

(trunk) of the vehicle. If the joint between the antenna control cable and the extension cable is in an exposed position, a self-amalgamating/self-bonding tape should be used to seal the joint. Do not wrap this joint if it cannot be made completely water tight as water will collect in the joint and cause it to corrode. A good ground (earth) to the main body of the vehicle is essential for efficient operation of the antenna. To achieve this, clean all joints to bare metal and use copper braid ground (earth) straps if any non-metallic joints are encountered. After mounting the main body of the antenna, screw the black base spring onto the antenna body followed by the whip section. Important Information It is ESSENTIAL to maintain the minimum clearances between the antenna and surrounding metal work as indicated in the diagrams. FAILURE TO MAINTAIN THESE CLEARANCES WILL NOT ONLY REDUCE THE EFFICIENCY OF THE BARRETT 4049 AUTOMATIC TUNING MOBILE HF ANTENNA BUT MAY ALSO LEAD TO INTERNAL RF ARCING AND FAILURE. 147 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Important:

Considerations on the overall height of the 4049 antenna once fitted should also be considered. ABSOLUTE MINIMUM CLEARANCE TOP VIEW SURFACE OF VEHICLE 160mm 148 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Important:

Please note that the mounting of a 4049 antenna on the front of a vehi-

cle may be considered illegal in some areas / countries. Please check with your local transport / vehicle authori-

ty prior to installation on the front of your vehicle. Considerations on the overall height of the 4049 antenna once fitted should also be considered. Caution:- Whilst the 4049 automatic tuning mobile HF antenna is designed to with-

stand vibration to military specifications on tyred vehicles, some mounting positions on large prime-movers, particularly front mounted bull bars, are subject to vibration that far exceeds this specification. Do not mount the 4049 antenna in positions such as these as damage to the antenna may result. 149 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Grounding (Earthing) the Antenna Earth Strap Notes:

1 2 3 4 Connect an ground (earth) strap to the base of the antenna Grind away any paint or coating at the grounding (earthing) point on the chassis to expose the bare metal Apply electrical contact grease to prevent rust and corrosion and maintain the integrity of the ground (earth) connection Attach the ground (earth) strap lug securely with an appropriate fasten-

er. IMPORTANT: If the antenna is mounted in a high position on the rear door of a vehicle, multiple ground (earth) straps must be used to reach the vehicle chassiss grounding (earthing) point. Ground (earth) conductivity from the antenna to the chassis must be maintained for correct operation of the antenna. 150 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Antenna Assembly Mounting the Base Spring The base spring should only ever be hand tightened, if a tool is used it may damage the spring base. Mounting the Whip Sections To mount the whip sec-

tion it is recommended that only one section of the whip is screwed onto the antenna at a time. The whip section should be hand tightened, then a suitable tool (i.e. a spanner) can be used to tighten the section a further 10 to 20 degrees clockwise while holding the antenna body with a free hand. 151 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION together, two whip To mount sections the unattached whip sec-

tion should be hand tightened, then a suita-

ble tool (i.e. a spanner) can be used to tighten the section a further 10 to 20 degrees clock-

wise while holding the already screwed on whip section with a free hand. Testing the Barrett 4049 Automatic Tuning Mobile HF Antenna To test the Barrett 4049 antenna, first select the lowest transmit frequency in the transceiver and tap Tune. The display should show the word Tuning for a few seconds, followed briefly by Tune Passed and an indication of the meas-

ured VSWR (Voltage Standing Wave Ratio) value. Check this reading against the VSWR meter. Repeat the above test on the highest frequency in the transceiver and on a selection of frequencies at approximately 2 MHz intervals. If the tune passes every time, the Barrett 4049 antenna is working correctly. The Barrett 4049 antenna tunes to maximise whip current, not minimise VSWR, but the dis-

played VSWR value should generally be between 1.0:1 and 2.0:1. However, if the display shows Autotune Fail accompanied by low pitched beeps, the Bar-

rett 4049 antenna has failed to tune. Confirm the Antenna Type is selected to 4049 Mobile Ant in the transceiver Menu Settings < IO < Antenna Type setting (page 24). For possible causes check that all cables are properly con-

nected, the earth cable from the base of the Barrett 4049 antenna has a good connection to the vehicle body (not chassis or battery), the whip fitted is not faulty or incorrect and move the vehicle if the Barrett 4049 antenna is close to any metal fences, buildings etc. If the problem cannot be resolved, contact your dealer or Barrett Service Department for advice. 152 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION NVIS whip with end ttings NVIS Kit for 4049 antenna - P/N BCA201910 The Barrett Near Vertical Incidence Skywave

(NVIS) antenna whip is designed to enhance the short range communications efficiency of the Barrett 4049 Automatic Tuning Mobile HF Antenna. The increased whip length combined with its horizontal orientation (once installed) provides a significantly higher take off angle and radiation efficiency. Communications paths over the range 20 - 500 kms, particularly in hilly and mountainous terrain, can be greatly improved through the use of the NVIS kit. Roof mount end tting 4049 Antenna end tting Conical tting The NVIS kit comprises of a single flexible whip section of 4 metres in length which replaces the two section whip (BCA201901) supplied with the Barrett 4049 Antenna. It has fittings at each end to attach to the 2019 antenna and the optional NVIS Kit Magnetic Mounting Base

(BCA201911). The whip can also be secured to the vehicle without the magnetic mounting base by using a custom made bracket with a 13mm hole (sourced by end user). This option may be preferable if the vehicle is fitted with a roof rack for example.

(hex grub screw) Hex fastener with recessed shaft 4049 antenna spring 153 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION The NVIS kit can be installed as follows:

1. Remove the existing 4049 antenna whip, leaving the spring in place. 2. Unscrew the lowest hex grub screw on the 4049 antenna end of the whip so that the hex fastener with recessed shaft can be removed. 3. Tighten the hex fastener with recessed shaft onto the top threaded stud of the antenna spring with an appropriate tool. 4. Place the conical fitting over the recessed stud and tighten the hex grub screw enough so that the conical fitting can rotate but can not be sepa-

rated from the recessed shaft. This will allow the conical fitting to rotate while the roof mount end is being attached and also prevent antenna end fitting damaging the vehicle by becoming detached while attaching the roof mount end. 5. Attach the roof mount end of the whip to an appropriate location (see figure 1 as a guide). It could be attached to the optional NVIS kit magnetic mounting base (see figure 3), optional NVIS kit gutter mount bracket (see figure 4) or to a custom fabricated bracket (with 13mm hole). If the mag-

netic mounting base is used the roof mount end must be locked into one of three angle positions by locating the pin on the surface of one side of the fitting into the hole on the surface of the other side of the fitting (see fig-

ure 2). Once the correct angle is achieved tighten the knob firmly by hand. 6. Once the roof mount end is securely in its final position, tighten the hex grub screw that was loosened in step 2. Figure 1 Example of front and rear antenna mounting using optional Magnetic Mounting Base (P/N BCA201911). 154 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Figure 2 Adjustable roof mount fitting showing locating pin and locating holes. Figure 3 NVIS Kit Magnetic Mounting Base (optional) P/N BCA201911. Base shown here with roof mount fitting attached. Figure 4 NVIS Kit Gutter Mount Bracket (optional) P/N BCA201912. 155 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

Base Station Installations The PRC-4090 base station setup combines the PRC-4090 HF SDR Transceiver with the System Docking Station and the PRC-4022 AC Power supply. This setup can be combined with other Barrett products to provide a situation specific HF communications solution. 156 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION

BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Assembly 1. Before starting, ensure that the lock clamps are released and in a horizon-

tal position. 2. Place the SDS on top of the PRC-4022, ensuring that the four capstans are correctly aligned and drop into the keyway slots. 3. Push the SDS towards the rear of the power supply as shown below so that the capstans and SDS click into place. 4. To secure the SDS, !rst rotate the lock clamps back into a vertical position, then turn the fasteners a quarter turn. The locks should click into place. 157

BARRETT Model PRC-4090 HF SDR transceiver Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. FCC ID: OW4-PRC4090HF IC: 6468A-4090HF

BARRETT PRC-4080 SDR oa BARRETT COMMUNICATIONS - Model: PRC-4090 HF SDR TRANSCEIVER O O 8 {e) 2 mao CE MMMM FeYfeYfeYf) MADEN AUSTRALIA

, BARRETT Model PRC-4090 HF SDR transceiver '

Operation is subject to the following two conditions: (1) This device may not cause __ harmful interference. and (2) This device must accept anv interference received. including interference that may cause undesired operation. reo Ik. A.AIA ANS ANNAN I- Corer. FASCRHRHA ARAN IE POL IW. OVS PACS IUTTE 1OEU. OSFODORCSUIUME BARRETT Model PRC-4090 HF SDR transceiver Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. FCC ID: OW4-PRC4090HF IC: 6468A-4090HF

47 Discovery Drive Bibra Lake Western Australia 6155 25 July 2023 Attn. Andrey Adelberg FCC ID: OW4-PRC4090HF HVIN: PRC-4090 HF SDR transceiver IC: 6468A-4090HF Barrett Communications hereby wish to confirm our intention to proceed with FCC and ISED certification of the PRC-4090 30W manpack. Barrett communications undertakes to sell only the PRC-4090 30W restricted manpack version with the FCC and ISED certification until the PRC-4090 is certified to 150W. Dave Archer Technical Manager Barrett Communications.

Covered Equipment Certification Attestation Letter May 23, 2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: OW4-PRC4090HF Barrett Communications (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not covered equipment. Barrett Communications (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Signed:

Printed name:

Title:

Company Name:

Date:

David Archer Technical Manager Barrett Communications 5/23/2023

U.S. Agent Designation for Service of Process -

Certification Attestation Letter May 23, 2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: OW4-PRC4090HF Per section 2.911(d)(7) of the FCC rules, Barrett Communications (the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. Designated agent* for service of process:

Company Name:

Physical U.S. Company Address:

Agent name:

Agent Email Address:

FRN:

Motorola Solutions Inc. 190 Office Park Way Pittsford, N.Y. 14534 USA John Eschenfelder john.eschenfelder@motorolasolutions.com 0033561176 The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed:

Designated Agent Signed:

(Required, if different to Applicant):

Signed:

Signed:

Printed name:

Title:

Company Name: Barrett Communications Date:

David Archer Technical Manager May 23, 2023 Printed name:

Title:

Company Name: Motorola Solutions Inc. Date:

John Eschenfelder General Manager March 15, 2023

* the applicant must designate a contact located in the United States for purposes of acting as the applicants agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.

Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent FCC On our behalf, I appoint Spencer Zhong of Nemko Canada, Inc. 303 River Road, Ottawa, Ontario, Canada K1V 1H2, to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko Canada Inc, still resides with Barrett Communications, 47 Discovery Drive, Bibra Lake, Western Australia 6163. Dated this 23 Day of May 2023 Agency agreement expiration date:

05/23/2024 By:

Signature David Archer Printed Title:

Technical Manager Telephone:

+618 9434 1700 On behalf of:

Barrett Communications Pty Ltd

5/23/2022 Nemko Canada Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 FCC ID: OW4-PRC4090HF Model: PRC-4090 HF SDR Transceiver Request for Permanent Confidentiality Pursuant to Sections 0.457(d) and 0.459 of the Commissions rules, we hereby request that the following documents be held confidential:

Schematics Block diagram Bill of Materials Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Dated: 3/24/2022 Signed:

Signed:

Printed name: David Archer Title: Technical Manager On behalf of: Barrett Communications Pty Ltd

Date:

19th July 2023 Product Name:

PRC-4090 HF SDR Transceiver Barrett Communications Pty Ltd requests that the FCC certify this product for the entire 1.5MHz to 30MHz band to meet the requirements of users authorized to operate between 1.5MHz and 2.0MHz as allowed by Title 47 CFR 2.106. This would be done to facilitate the requirements of agencies covered under NTIA spectrum usage. Government agencies complying with the NTIA instead of the FCC must purchase their equipment from private industry manufacturers who are governed under FCC rules. The conflict in spectrum allocation detracts from the options available to the government agencies for commercial off the shelf equipment which meets their required specifications such as the Department of Interiors. Please see frequency lists on next page. Dated This 29th Day of ___ July ________ 2023 _________ By:

Title:

For:

____________________ Signature Technical Manager Barrett Communications Telephone: +618 9434 1700 David Archer __________________________ Printed The following table lists the CFR 47 Part 87 frequencies for a MF/HF Fixed station transceiver:

2.1735 - 2.1905 MHZ 2.505 3.025 MHz 3.230 3.500 MHZ 4.063 4.438 MHz 4.488 4.700 MHz 4.85 4.995 MHz 5.005 5.25 MHZ 5.275 5.68 MHz 5.73 5.90 MHZ 6.525 6.685 MHz 7.45 8.10 MHz 8.195 8.965 MHz 10.005 10.10 MHz 11.275 11.400 MHz 13.260 13.360 MHz 17.900 17.970 MHz 21.85 22.000 MHz The CFR 47 Part 87 extended" frequencies are:

Frequency

(MHz) FCC Rule Part(s) Frequency

(MHz) FCC Rule Part(s) 1.5 1.605 73, 90 1.605 1.705 73, 80, 90 Frequency

(MHz) 1.705 1.8 1.8 2.0 2.107 2.17 80, 97 80, 90 2.0 2.065 80, 90 2.065 2.107 2.17 2.1735 80 2.1905 - 2194 FCC Rule Part(s) 80, 90 80 80 2194 - 2495 80, 90 2.495 - 2.505 Standard Frequency and Time signal 3.025 - 3.155 Aeronautical Mobile 3.155 - 3.230 4.438 - 4.488 4.995 - 5.005 80, 90 80, 90 Standard Frequency and Time signal 3.5-4.0 4.7 - 4.75 97 4.0 - 4.063 80 Aeronautical Mobile 4.75 4.85 80, 90 5.25 - 5.275 80, 90 5.68 - 5.73 6.685 6.765 7.2 7.3 73, 97 5.9 - 6.2 73 6.2 6.525 6.765 7.0 18, 90 7.0 7.2 7.3 - 7.45 73, 80, 90 8.1 - 8.195 9.04 9.4 80, 90 9.4 9.9 9.995 10.005 11.175 - 11.275 Standard Frequency and Time signal Aeronautical Mobile 10.1 10.15 11.4 11.6 12.1 12.23 90 12.23 13.2 13.36 13.41 Radio Astronomy 13.41 13.57 13.87 14.0 90 14.0 14.35 80 97 80 73 97 90 80 90 97 Standard Frequency and Time signal 15.01 15.1 Aeronautical Mobile 8.965 9.04 9.9 9.995 10.15 11.175 11.6 12.1 13.2 13.26 13.57 13.87 14.35 14.99 15.1 15.8 Aeronautical Mobile Aeronautical Mobile Aeronautical Mobile 90 90 73 Aeronautical Mobile 73 90 73 90 14.99 15.01 15.8 16.36 17.48 17.9 18.068 18.168 18.9 19.02 19.8 19.99 21.0 21.45 22.855 23.2 24.89 24.99 90 73 97 73 90 97 90 97 16.36 17.41 80 17.41 17.48 17.97 18.03 Aeronautical Mobile 18.03 18.068 80, 90 18.168 18.78 80, 90 18.78 18.9 19.02 19.68 90 19.68 19.8 19.99 20.01 Standard Frequency and Time signal 20.01 21.0 21.45 21.85 73 22.0 22.855 23.2 23.35 24.99 25.01 Aeronautical Mobile Standard Frequency and Time signal 23.35 24.89 25.01 25.07 80 80 90 80 90 90 Frequency

(MHz) FCC Rule Part(s) Frequency

(MHz) FCC Rule Part(s) 25.07 25.21 80, 90 25.21 25.33 25.55 25.67 Radio Astronomy 25.67 26.1 26.175 26.2 74 26.2 - 26.42 26.48 26.95 Fixed Mobile 26.95 26.96 27.23 - 27.41 18, 90, 95 27.41 - 27.54 28.0 29.7 29.91 - 30 97 Fixed 29.7 - 29.89 90 73, 74 74, 90 18 90 90 Frequency

(MHz) FCC Rule Part(s) 25.33 - 25.55 Fixed Mobile 26.1 - 26.175 26.42 - 26.48 26.96 - 27.23 74, 80 74 18, 95 27.54 28.0 Fixed Mobile 29.89 - 29.91 Fixed Mobile

Date:

23rd April 2023 Product Name:

PRC-4090 HF SDR Transceiver Barrett Communications Pty Ltd also requests that the FCC certify this product for the entire 1.5MHz to 30MHz band to meet the requirements of users authorized to operate between 1.5MHz and 2.0MHz as allowed by Title 47 CFR 2.106. This would be done to facilitate the requirements of agencies covered under NTIA spectrum usage. Government agencies complying with the NTIA instead of the FCC must purchase their equipment from private industry manufacturers who are governed under FCC rules. The conflict in spectrum allocation detracts from the options available to the government agencies for commercial off the shelf equipment which meets their required specifications such as the Department of Interiors. Please see frequency lists on next page. Dated This 23rd Day of ___ May ________ 2023 _________ By:

David Archer ______________________ _________________________ Signature Printed Title:

Technical Manager For:

Barrett Communications Telephone: +618 9434 1700 The following table lists the CFR 47 Part 90 frequencies for a MF/HF mobile transceiver:

1.5 1.8 MHz 2.00 2.065 MHz 2.107 2.17 MHz 2.194 2.495 MHz 2.505 2.85 MHz 3.155 3.4 MHz 4.438 4.65 MHz 4.75 4.995 MHz 5.05 5.45 MHz 5.73 5.9 MHz 6.765 7.0 MHz 7.3 8.1 MHz 9.04 9.4 MHz 9.9 9.995 MHz 10.15 11.175 MHz 11.4 - 11.6 MHz 12.1 12.23 MHz 13.41 13.57 MHz 13.87 14.0 MHz 14.35 14.99 MHz 15.8 16.36 MHz 17.41 17.48 MHz 18.03 18.068 18.168 18.78 MHz 19.02 19.68 MHz 19.8 19.99 MHz 20.01 21.0 MHz 21.85 21.924 MHz 22.855 23.2 MHz 23.35 - 24.89 MHz 25.01 25.33 MHz 26.2 26.42 MHz 27.23 27.54 MHz 29.7 29.8 MHz The CFR 47 Part 90 extended" frequencies are:

8.195 - 8.815 80, 87 8.815 - 8.965 Frequency

(MHz) 1.8 2.0 80, 97 2.065 2.107 FCC Rule Part(s) Frequency

(MHz) FCC Rule Part(s) Frequency

(MHz) FCC Rule Part(s) 2.1735 - 2.1905 80, 87 2.1905 - 2194 2.850-3025 3.5-4.0 4.65 - 4.7 5.45 - 5.68 6.2 6.525 7.0 7.2 87 97 87 87 80 97 9.4 9.9 10.1 10.15 11.6 12.1 13.26 - 13.36 14.0 14.35 15.1 15.8 17.9 - 17.97 18.78 18.9 19.99 20.01 21.924 - 22 24.89 24.99 73 97 73 87 97 73 87 80 Standard Frequency and Time signal 87 97 80 80 2.17 2.1735 80 2.495 - 2.505 Standard Frequency and Time signal 3.205 - 3.155 Aeronautical Mobile 3.4 - 3.5 87 4.0 - 4.063 80 4.063 - 4.438 80, 87 4.7 - 4.75 5.68 - 5.73 6.525 - 6.685 7.2 7.3 9.995 10.005 11.175 - 11.275 Aeronautical Mobile Aeronautical Mobile 87 73, 97 87 Standard Frequency and Time signal Aeronautical Mobile 4.995 - 5.005 Standard Frequency and Time signal 5.9 - 6.2 73 6.685 6.765 Aeronautical Mobile 8.1 - 8.195 80 8.965 9.04 Aeronautical Mobile 10.005 - 10.1 11.275 - 11.4 87 87 Aeronautical Mobile 12.23 13.2 80 13.2 13.26 13.36 13.41 Radio Astronomy 13.57 13.87 73 14.99 15.01 Standard Frequency and Time signal 15.01 15.1 Aeronautical Mobile 16.36 17.41 80 17.48 17.9 17.97 18.03 18.9 19.02 21.0 21.45 22.0 22.855 24.99 25.01 Aeronautical Mobile 73 97 80 Standard Frequency and Time signal 18.068 18.168 19.68 19.8 21.45 21.85 73 97 80 73 23.2 23.35 Aeronautical Mobile 25.33 - 25.55 Fixed Mobile 25.55 25.67 Radio Astronomy 25.67 26.1 73, 74 26.1 - 26.175 74, 80 26.175 26.2 26.95 26.96 74 18 26.42 - 26.48 26.96 - 27.23 74 18, 95 26.48 26.95 Fixed Mobile 27.54 28.0 Fixed Mobile Frequency

(MHz) 28.0 29.7 29.91 - 30 FCC Rule Part(s) 97 Fixed Frequency

(MHz) 29.8 - 29.89 FCC Rule Part(s) Frequency

(MHz) FCC Rule Part(s) Fixed 29.89 - 29.91 Fixed Mobile

Date:

26th July 2023 Product Name:

PRC-4090 HF SDR Transceiver FCC ID:

OW4-PRC4090HF Barrett Communications Pty Ltd hereby certify that all PRC-4090 units bearing the FCC logo will contain a software region lock that will prevent the product being used in a manner contrary to that allowed by FCC Part 87 and Part 90 rules. This software region lock will restrict modification of the following Software definable RF parameters:

1. 2. 3. 4. AGC Attack/Gain: are not modifiable. Modulation Types: are factory programmable only and are limited to the certified J3E and H3E emissions. Output Power: is factory programmable only and limited to a maximum of 30W. Transmit Frequencies: are factory programmable only and are restricted to licensed frequencies in the range of 1.5MHz and 30MHz. All FCC PRC-4090s are shipped from the factory pre-programmed with only authorized frequencies and are not modifiable by end users. The PRC-4090 transceiver is only supplied by authorized dealers who program the radios frequencies to ensure that frequencies are restricted to only those licensed to the end-user. Dated This 26th Day of ___ July ________ 2023 _________ By:

_____________________ Signature Title:

Technical Manager For:

Barrett Communications Telephone: +618 9434 1700 David Archer _________________________ Printed

Tune Up Procedure 07/19/2023 TO WHOM IT MAY CONCERN This letter is to certify that the Barrett PRC-4090 HF Transceiver requires no tune up procedure as the unit contains a fully automatic antenna tuner that re-tunes each time the frequency or channel is changed. Dated this 19 Day of July 20 23 By:

Signature David Archer Printed Title:

Technical Manager Applicant:

Barrett Communications Pty Ltd