FCC ID: QH5TAV250H VHF Television Broadcast Transmitter

TAV-250 ANALOG TV POWER AMPLIFIER OPERATING MANUAL TAV-250 Youve already unpacked it, havent you? Youve unpacked it and plugged it in and turned it on and fiddled with the knobs. No?

Okay, good. Please take a few minutes to read the manual and familiarize yourself with your new Technalogix power amplifier. We believe that this manual, and of course our equipment, should be everything you need to get on the air with superb broadcast quality video. We understand that a capable and confident user will get the most out of our product and we have made every attempt to educate readers of all technical levels. If there is something that is not clear, or you require further information, please do not hesitate to contact us and well be glad to help out. Technalogix Ltd.

#4, 8021 Edgar Industrial Place Red Deer, Alberta, Canada T4P 3R3 Phone: 403.347.5400 Fax: 403.347.7444 URL: www.technalogix.ca Email: technical@technalogix.ca sales@technalogix.ca We truly appreciate that you have chosen us as your television broadcast system supplier. Happy viewing. TAV-250 Table of Contents SECTION I- SAFEGUARDS.................................................................................... I-1 SAFETY AND FIRST AID ......................................................................................... I-2 OPERATING SAFEGUARDS ..................................................................................... I-3 SECTION II - WARRANTY................................................................................... II-1 SECTION III - OVERVIEW................................................................................... III-1 STANDARD FEATURES......................................................................................... III-1 PRINCIPLE OF OPERATION................................................................................... III-2 BLOCK DIAGRAM ................................................................................................ III-3 SPECIFICATIONS................................................................................................. III-5 SECTION IV - RF COMPONENTS........................................................................IV-1 AMPLIFIER PALLETS............................................................................................IV-1 DIRECTIONAL COUPLER ......................................................................................IV-4 ISOLATOR...........................................................................................................IV-4 FILTER...............................................................................................................IV-4 SECTION V - POWER SUPPLY SECTION...............................................................V-1 SECTION VI - MONITOR AND CONTROL SYSTEM .................................................VI-1 CONTROL BOARD OVERVIEW (INSIGHT)................................................................VI-1 USER INTERFACE MODULE ..................................................................................VI-1 COUPLER CONDITIONING MODULE .......................................................................VI-2 RF CONDITIONING MODULE.................................................................................VI-3 TEMPERATURE SENSOR MODULE ........................................................................VI-4 TXNET MODULE..................................................................................................VI-5 REMOTE PORT ...................................................................................................VI-6 FAULT SHUTDOWN..............................................................................................VI-7 BILL OF MATERIALS ............................................................................................VI-8 SCHEMATICS ....................................................................................................VI-10 SECTION VII - MECHANICAL SECTION...............................................................VII-1 TAV-250 SECTION VIII - INSTALLATION .........................................................................VIII-1 BUILDING RECOMMENDATIONS ..........................................................................VIII-1 HEATING AND COOLING REQUIREMENTS.............................................................VIII-2 ELECTRICAL SERVICE RECOMMENDATIONS.........................................................VIII-3 ANTENNA AND TOWER RECOMMENDATIONS........................................................VIII-4 SHELTER SECURITY..........................................................................................VIII-5 UNPACKING AND INSPECTION.............................................................................VIII-6 LOCATION AND FUNCTION OF CONTROLS AND CONNECTORS (TAV-250 POWER AMPLIFIERS).....................................................................................................VIII-7 INITIAL HOOK UP ............................................................................................VIII-11 SECTION IX - OPERATING PROCEDURE..............................................................IX-1 SECTION X - MAINTENANCE AND TROUBLESHOOTING ..........................................X-1 TROUBLESHOOTING .............................................................................................X-2 TAV-250 Section I - Safeguards General Safeguards This section is written as a general guide to keep all 5 fingers on your hand and is intended for those having previous knowledge and experience with these kinds of equipment. It is not intended to contain a complete statement of all safety precautions, which should be observed by personnel using this or other electronic equipment. DOCUMENTATION - Read, retain and follow instructions before operating the equipment. There is a lot of useful information in the manual, and besides, we spent a lot of time writing it!

ENVIRONMENT - To reduce the risk of fire or electric shock, do not expose this equipment to rain, moisture, or rye and sodas at the company Christmas party. Refer all servicing to qualified service personnel. SERVICING - Do not attempt to service this equipment yourself as opening or removing covers can result in a warm tingly feeling and will void the warranty. Refer all servicing to qualified service personnel. I-1 TAV-250 Safety and First Aid Personnel engaged in the installation, operation, maintenance, or servicing of electronic equipment are exposed to the hazard of high voltage. It is imperative that all safety regulations and precautions are consistently observed. Knowledge of first aid procedures is recommended. The following information is presented as a reference only. At all times, avoid placing any part of the body in series between ground and circuit points, whether power is on or off. Dangerous voltage may be present in equipment even though power is off. Do not open the cabinet. Refer servicing to qualified service personnel. It is the duty of all personnel to be prepared to give adequate emergency first aid treatment and thereby prevent avoidable loss of life. There are three principle degrees of burns, recognizable as follows:

a first-degree burn reddens the skin. a second-degree burn blisters the skin. a third degree burn chars the flesh and frequently places the victim in a state of shock accompanied by respiratory paralysis. Respiratory paralysis can cause death by suffocation within seconds. It is imperative that the approved methods of artificial respiration are initiated immediately and continue until the victims breathing is normal. A muscular spasm of unconsciousness may render the victim unable to break free of the electric power. If this is the case, turn the power off immediately. DO NOT TOUCH THE VICTIM OR YOU MAY SHARE THE SAME PREDICAMENT. If the power cannot be turned off immediately, very carefully loop a dry rope, article of clothing, length of strong cloth or a rolled-up newspaper around the victim and pull the victim free of the power source. Carefully avoid touching the victim or clothing. Once free of the power source, the victim must be placed in a reclining position and covered with a blanket or newspapers to keep warm. At the first opportunity, enlist help in summoning a doctor. If a doctor cannot be summoned, transport the victim to the doctor or a hospital. Be sure the victim is kept well covered and warm while awaiting professional treatment. I-2 TAV-250 Operating Safeguards It is a known fact that our broadcast transmitters and translators enjoy 50-ohm load impedances. So much so, that it is imperative you maintain 50-ohm impedances throughout your system. In return, your equipment will provide you with maximum power transfer to the antenna and decreased reflected power heading back towards the amplifier pallets, reducing the amount of magic smoke that gets let out of the power amplifier. Before anything is turned on, ensure that there is a 50-ohm path from the output of each stage to the input of the next, all the way to the antenna. In addition to maintaining proper 50-ohm impedances throughout the signal chain, it is also important, whenever possible, to make sure the RF drive going to the input of the power amplifier is removed before turning on or turning off the DC power supply. This is because all of the RF transistors used in the individual amplifier pallets are fabricated with LDMOS (Laterally Diffused Metal Oxide Semiconductor) technology. Nice and linear yes, but they do not like to make any RF power when their supply voltages are not within a specific range. When you first turn your power amplifier on or off, the DC power supplys output voltage may take a while to stable out to a safe operating voltage. Ten seconds wait before applying the RF drive will ensure no issues arise. Our power amplifiers are designed to reliably generate a specific RF output power. Failing to adhere to overdriven amplifier warnings can decrease the reliability of your system, and frankly, makes our repair department busy and grumpy. If you need to transmit to a little larger coverage, you are better off increasing antenna gain, and more importantly, antenna height above average terrain. On TV and FM broadcast frequencies, insufficient antenna height puts an upper limit on your range, regardless of power levels, as the distance from your antenna to the radio horizon is limited. I-3 TAV-250 Section II - Warranty Our legalese is straightforward. It is simply designed to give you peace of mind and helps you resist the temptation to have your electronics friend try to repair your Technalogix product. Technalogix Ltd. products have been completely tested and found to meet specifications and be in proper operating condition. They are warranted to be free from defects in materials and workmanship for a period of one year from the date of shipment. If the system becomes damaged in shipment and there are obvious signs of damage to the outside of the packaging, notify your courier immediately before that courier walks out the door. Technalogix Ltd. will not be liable for damages of whatever nature arising out of or in connection with the equipment or its use thereof. Technalogix does not assume responsibility for injury or damage resulting from the practices of untrained or unqualified personnel in the handling of this equipment. Technalogix Ltd. warranty does not include:

misuse, neglect or accident. unauthorized repairs, modifications or use in violation of instructions issued by Technalogix. acts of nature or terrorism. Technalogix agrees, at our option, to remedy warranted defects or furnish a new part in exchange for any part of a unit which, under normal installation, use and service, becomes defective. The user will pay for transportation costs to and from the repair center. If you require technical service on the site, the cost to you will be $800.00 US per day plus air fare and meals. incidental or consequential damages as a result of any defect. reshipment cost or insurance of the unit or replacement units or parts. incorrect wiring and /or improper installation. II-1 TAV-250 To claim your rights under this warranty:

Contact Technalogix and describe the problem in as much detail as possible. See troubleshooting section in this manual. If a solution cannot be found at this time, it may be determined that the unit will have to be returned to Technalogix for repair, once a Return Materials Authorization (RMA) number is provided. Please look under our web site

(www.technalogix.ca) for the RMA form (Service) and fill it out. Either fax it to us or email to us. Package equipment carefully for prepaid shipment to Technalogix. Include a written description of the problem experienced, a copy of the original invoice establishing warranty status, and the RMA. Technalogix reserves the right to make revisions in current production of the equipment and assumes no obligation to incorporate these changes in earlier models. Shipping Address:

Technalogix Ltd. ATTN: RMA#

#4, 8021 Edgar Industrial Place Red Deer, Alberta, Canada T4P 3R3 Ph: 403.347.5400 Made in Canada, returned for repairs II-2 TAV-250 Section III - Overview Standard Features Narrow output bandpass filter (if installed) allows adjacent channel operation Front panel Liquid Crystal Display (LCD) to monitor system parameters. Microcontroller-based monitoring and control ensures amplifier will never be overdriven and high VSWR will not damage amplifier AC circuit breaker on back panel to eliminate replacement of fuses All aluminium enclosure maintains power amplifiers light weight Simple design using commonly available parts ensures reliable operation Predominate and third-order intermodulation distortion exceeds Industry Canada and FCC specification. III-1 TAV-250 Principle of Operation The TAV-250 power amplifier supplies a 250-watt peak video signal with an aural carrier level 10 to 13 dB below visual carrier (dBc) on any of the VHF television channels 2 through 13. Please note that channel selection must be made at time of order, as the transmitter or translator is calibrated and tested to the channel requested and is not field tuneable. The TAV-250 power amplifier is a modular solid-state 250-watt broadcast amplifier utilizing readily available RF components wherever possible, thus enhancing the serviceability of the equipment. The TAV-250 is comprised of a 25 watt driver pallet in addition to a 400 watt final pallet that provides 250 watts of peak visual power in addition to the aural carrier power. The TAV-250 features ultra linear amplification with amplifier modules that are stable for high reliability and long service life. III-2 TAV-250 Block Diagram The RF signal enters through the RF Input connector on the power amplifier enclosure from the modulator or processor. It then passes through an RF attenuator to limit the output power level of the power amplifier and to help buffer any transients that may come into the power amplifier. After attenuation, the signal gets preamplified using a driver pallet before the signal passes into a final pallet for final amplification. The signal then passes through an isolator. Finally, the signal gets monitored with a dual directional coupler before heading out to an antenna for broadcast. III-3 TAV-250 A=+40dB typ. low band VHF A=+34dB typ. high band VHF U3 Bandpass Filter VHFTV25-VHF DRIVER VHFTV400-VHF FINAL CIRCULATOR Attenuation RF INPUT A=+18dB typ. low band VHF A=+15dB typ. high band VHF V 50 OHM TERMINATION DIRECTIONAL COUPLER V V RF OUT TO WATTMETER AND ANTENNA TAV-250 Block Diagram Rev ID Date: May 25, 2005 Page: 1 of 1 TAV-250 Specifications The following specifications were taken with a Technalogix modulator/processor. Should a different modulator or processor be used, specifications could vary. For this reason, we recommend that any different modulator/processor be shipped to Technalogix so the system can be matched and set up optimally. In addition, the audio/video ratio the input to the power amplifier needs to be 10 dB in order for the software and LCD readout to be accurate. RF Characteristics Frequency range Frequency Response (one channel) Frequency Stability Selectivity Minimum Input Level Rated Visual Output Power Rated Aural Output Power IF Output Level Input Impedance Output Impedance Harmonics Predominant Intermodulation Distortion 3rd Order Intermodulation Distortion Spurious Emissions NTSC Video Characteristics any specified VHF Channel 2 to 13 0.5 dB 250 Hz 60 dB (adjacent channel) 0 dBmV 250 Watts 10% of peak visual power

+35 dBmV nominal 75 Ohms 50 Ohms

> 60 dB below rated power dBc = decibels below visual carrier

> -53 dBc

> -53 dBc

> -53 dBc

> -53 dBc

> -53 dBc

> -53 dBc

+ 920 kHz

- 920 kHz

+ 2.66 MHz

- 2.66 MHz

+ 5.42 MHz

+ 7.16 MHz

+ 4.5 MHz

+ 9.0 MHz All others

> -60 dBc

> -60 dBc

> -60 dBc

> -60 dBc Input Level to modulator (for 87.5% modulation) Differential Phase (at 87.5% modulation) Differential Gain (at 87.5% modulation) Group Delay Video Group Delay Pre-emphasis K-Factor Hum and Noise 1.0 VPP 2 Degrees 2%

< 40 nS Conforms to IC/FCC specifications 1.9% for 2T Pulse

> 60 dB below rated power III-4 TAV-250 Aural Characteristics Input Level for 25 kHz Deviation Frequency Response (Standard Pre-emphasis) Harmonic Distortion (25 kHz Deviation) Amplitude Modulation Noise Frequency Modulation Noise Intercarrier Stability Physical Characteristics Power Requirements 0.3 VPP 1 dB

< 1% 50 Hz to 15 kHz

> 50 dB

> 60 dB 250 Hz Operating Temperature Dimensions Power Supply 115Vac, 11A or 230Vac, 5.3 Aac 0 - 50C Power Amplifier W-19" flange (17 encl.) , D-25", H-8-3/4 (5U) III-5 TAV-250 Section IV RF Components Amplifier Pallets The VHFTV-25 pallet is a two stage ultra linear class-A linear pallet. The VHFTV-25-L has a typical gain of 40dB and the VHFTV-25-H has a typical gain of 34dB. These pallets draw no more than 3.25Adc total drain current (the exact bias and drain currents of your system are found in the spec sheet supplied with each manual). The quiescent and drain currents can be measured on the VHFTV-25 pallet by measuring the voltage drop across the current sense resistor found directly at the DC power supply lead input to the pallet. This resistance is 0.01-ohms, providing a 10mV per ampere ratio. The final amplifier stage is comprised of a VHFTV-400-L or VHFTV-400-H amplifier pallet and are characterized with typical gains of 18 dB (low band) or 16dB (high band) and maximum drain currents of 11 A (low-band) or 14 A (high-band). Each of the amplifier pallets is connectorized. All amplifier pallets must have the transistor drain voltages reach at least 26Vdc before the RF drive is applied. IV-1 TAV-250 TAV-250 TAV-250 Filter The passive bandpass filter rejects spurious and harmonic output products and passes the VHF channel RF output. The cavity resonator uses aperture coupling and is a linear resonator design. Typical insertion loss is 0.6 dB to 1.0 dB depending on channel frequency. Average roll off is 33 dBc at a point 4.5 MHz below the peak visual carrier frequency and 30 dBc 9.0 MHz above the peak visual carrier frequency. The filter is DC grounded on both the input and output for additional lightning protection. Directional Coupler The Technalogix dual directional couplers provide DC voltages proportional to forward and reflected RF power monitoring. These analog voltages are converted for processing using analog-to-digital converters and provide the control system with valuable data for monitoring purposes. The directional couplers installed in the power amplifier and filter enclosures have peak detection circuits on the forward RF power side of the coupler and average detection circuits on the reflected RF power side of the coupler. This is to allow the end user to set power in a manner that is more independent of modulation and closer to a true tip-of-sync meter. Hence the readings of the displays in the power amplifier system are peak for forward and average for reflected. Output power should be set following the operating procedure found elsewhere in this manual. The directional coupler has a typical insertion loss of 0.5dB and its Type N connectors can handle 1,500 watts peak. Isolator The power amplifier pallets are protected in part by the isolator located in the filter enclosure. It is actually made up of a circulator and 50-ohm dump resistor. The circulators specifications include an insertion loss of less than 0.2dB with an isolation rating better than 20dB. Any reflected power gets dumped into the flanged power resistor. Even though the flanged power resistor is rated for only 150-watts, and there could potentially be 500-watts being reflected back into the circulator, the software will recognize quickly that reflected power is present and turn the carrier off. This way, there is instantaneous protection due to the isolator setup and long term protection due to the software. IV-4 TAV-250 Section V Power Supply Switching AC-DC power supplies are used to power the amplifier pallets, the control circuits, and all of the fans. There is (1) power supply used to generate the necessary current for the amplifier pallets, set to 30 Vdc nominally. The power supply is a Cotek-800S-P. This switching power supply is fully protected against short circuit and output overload. Short circuit protection is a cycling type power limit. The internal AC fuse is designed to blow only on a catastrophic failure in the unit the fuse does not blow on overload or short circuit. The thermal shutdown automatically recovers when the power supply chassis cools down. AC is fed into the enclosure via a filtered EMI AC entry. It is then current limited with a resettable circuit breaker before passing through a rocker switch. This switch turns the AC on and off to the switching power supply. V-1 TAV-250 800S-P Series Switching Power Supply With PFC Users Manual TAV-250 800S-P Series Switch Power Supplies Universal AC Input 0.98 Typical Power Factor Forced Current Sharing at Parallel Operation Power Failure Signal Remote Sense Remote ON / OFF control SC / OV / OL / OT Protection Programmable Output Voltage Specification Input Voltage Range Input Current (Typ.) Inrush Current (Typ.) Power Factor (Typ.) Efficiency DC Output Voltage Output Voltage Adjustment Ripple & Noise Line & Load Regulation Output Rated Current Max Output Power Model 800S -P009 800S-P012 800S-P015 800S-P018 90 ~ 260V AC, 47~63 Hz ( 90~170VAC reduce power see curve below ) 4.5A / 230 V AC RESULT A42.0A 0.98 83%

+9V DC 84%

+12V DC 85%

+15V DC 85%

+18V DC Max.-Min.15% Adj. Typical adjustment by potentiometer 25% ~ 100% Adjustment by 1 ~ 5v DC external control 1%

Less than 1%

88.8A 66.6A 53.3A 44.4A 800W Over Voltage Protection Over Load Protection 110% ~ 135% ( variable OVP follows the adjustable DC output voltage ) Current limiting 3 times (1.5, 3.0, 5.0) then intelligent auto recovery before shutdown Remote ON / OFF Control Remote Sense Power Failure Signal Parallel Operation Setup , Rise , Hold Up Time Temp. Coefficient Working Temp., Humidity Storage Temp., Humidity Vibration Safety Standards EMC Standards Leakage Current Cooling Dimension Weight ; Qty /

Carton Compatible with a TTL signal to turn ON / OFF Yes Open Collector of NPN Transistor Yes RESULT A12.4mS 0.04% / ( 0 ~ 50) 0~+50 @100% Load, +65 @50% Load, 20% ~ 90% RH

-20~+85 10%~95% RH 10 ~ 200Hz, 2g 10min./1 Cycle, Period of 60 min. for each axes UL1950, TUV EN60950 EN55022, EN610000-4-2,3,4,5,6,8,11, EN61000-3-2,3, ENV50204

< 3.5mA / 240V AC Power rating & temperature controlled fan 291 x 120 x 68 mm (L X W X H) / 2.3 Kgs ; 8 Sets / Ctn 1 TAV-250 Specification Input Voltage Range Input Current (Typ.) Inrush Current (Typ.) Power Factor (Typ.) Efficiency DC Output Voltage Output Voltage Adjustment Ripple & Noise Line & Load Regulation Output Rated Current Max Output Power Over Voltage Protection Over Load Protection Remote ON / OFF Control Remote Sense Power Failure Signal Parallel Operation Setup , Rise , Hold Up Time Temp. Coefficient Working Temp., Humidity Storage Temp., Humidity Vibration Safety Standards EMC Standards Leakage Current Cooling Dimension Weight ; Qty / Carton 800S-P Series Switch Power Supplies Universal AC Input 0.98 Typical Power Factor Forced Current Sharing at Parallel Operation Power Failure Signal Remote Sense Remote ON / OFF control SC / OV / OL / OT Protection Programmable Output Voltage Model 800S-P024 800S-P036 800S-P048 800S-P060 90 ~ 260V AC, 47~63 Hz ( 90~170VAC reduce power see curve below ) 4.5A / 230 V AC RESULT A42.0A 0.98 88%

+24V DC 88%

+36V DC 89%

+48V DC 90%

+60V DC Max.-Min.15% Adj. Typical adjustment by potentiometer 25% ~ 100% Adjustment by 1 ~ 5v DC external control 1%

Less than 1%

33.3A 22.2A 16.6A 13.3A 800W 110% ~ 135% ( variable OVP follows the adjustable DC output voltage ) Current limiting 3 times (1.5, 3.0, 5.0) then intelligent auto recovery before shutdown Compatible with a TTL signal to turn ON / OFF Yes Open Collector of NPN Transistor Yes RESULT A12.4mS 0.04% / ( 0 ~ 50) 0~+50 @100% Load, +65 @50% Load, 20% ~ 90% RH

-20~+85 10%~95% RH 10 ~ 200Hz, 2g 10min./1 Cycle, Period of 60 min. for each axes UL1950, TUV EN60950 EN55022, EN610000-4-2,3,4,5,6,8,11, EN61000-3-2,3, ENV50204

< 3.5mA / 240V AC Power rating & temperature controlled fan 291 x 120 x 68 mm (L X W X H) / 2.3 Kgs ; 8 Sets / Ctn 2 TAV-250 Connector pin-out drawings 3 TAV-250 Output power vs. input voltage de-rating curve Output power vs. ambient temperature de-rating curve 4 TAV-250 Mechanical drawings 5 TAV-250 Section VI Monitor and Control System Control System Overview (Insight) The Insight control system is used for a variety of functions, the most important of which is ensuring that the transmitter continues to operate in a safe manner. The control system also allows the user to monitor and control the transmitter from both the front panel and the remote access port. Five modules comprise the Insight control system. These modules work together to provide all the functions of the control system. The modules are: the user interface module, the coupler condition module, the RF conditioning module, the temperature sensor module, and the TxNET module. The operation of each module is outlined in the following sections. User Interface Module The primary function of the user interface module is, as the name suggests, providing the user interface for the control system. This circuit board is mounted to the front panel of the transmitter, directly behind the LCD display. The membrane switch on the front panel is also connected to the user interface module. These components together provide the user with the ability to monitor the transmitter from the front panel. The following parameters can be monitored from the front panel:

Forward (incident) power at the transmitter output. Reflected (reverse) power at the transmitter output. DC voltage of the transmitter power supply. DC current for each pallet in the transmitter. Temperature of the heat sink of the transmitter. The time since the transmitter was last shut down. The hardware of the user interface module is based around a microcontroller (U112). This microcontroller interfaces directly with the LCD and the membrane switch to provide output and receive input from the user. The microcontroller also communicates with the coupler conditioning board over a controller area network (CAN) bus. This communication is facilitated be two ICs, U113 and U114, and passes through a CAT5 cable attached to connector J105. The communication link with the coupler conditioning module allows the user interface module to receive information about the foreword power, reflected power, and temperature of the transmitter, as well as relay commands from the user to the rest of the system. If the transmitter includes more than on amplifier module, a second CAN connection will be present between the user interface module (J106) and the TxNET board to facilitate communication between enclosures. Other elements of the user interface module are also controlled by the microcontroller. A buzzer

(BZ101), a status LED (D113), and a relay to control the backlight of the LCD (RL101), are all controlled through a buffer (U116). In order for the user interface module to monitor the current draw of each pallet in the system, the DC supply wires pass through the user interface module VI-1 TAV-250 on their way from the power supply to the pallets. The DC enters through connector J101 from the power supply, and exits through J102 to go to the pallets. As the current passes through shunt resistors (R117, R118, R120, R121, R123, R124, R126, R127, R129, R130), the voltage drop is monitored by U101 to U105, buffered by U106 to U108, and sent to the analog to digital converter integrated into the microcontroller. There are five circuits for which the current is monitored by this system. As the DC supply passes through the user interface module, it undergoes filtering to ensure that the supply to the pallets is as clean as possible. Each of the five circuits passes through a network of transient voltage suppressors, capacitors, and inductors. Each connection is also fused at the input to insure an over-current condition does not persist. The fuses are a replaceable mini blade type fuse with a 42V voltage rating, and a current rating depending on application. Coupler Conditioning Module The coupler conditioning module serves to monitor the output of the directional coupler which provides a voltage proportional to the foreword and reflected power at the output of the transmitter. The coupler conditioning module also interfaces with each of the other boards in the control system, acting as the hub of communications for the system. Lastly, the coupler conditioning board sends and receives signals through the remote access port, via the TxNET board. The analog signals produced by the coupler for forward and reflected power are passed onto the coupler conditioning module by connectors J206 and J207 respectively. Each signal is filtered by CLC networks, and buffered and amplified by the op-amp U214. The level of the forward signal can be adjusted by VR201, and the reflected signal by VR202. These two potentiometers can be used to fine tune the power readings of the transmitter if they go out of calibration. The analog signals are converted to digital by an analog-to-digital converter integrated into the microcontroller U202. Aside from taking readings from the coupler, the microcontroller on the coupler conditioning module also interfaces with the RF conditioning module (through J201A) and the temperature sensor (through J201B). The microcontroller interfaces with the CAN bus using U203 and U204. Through the CAN bus, the coupler conditioning board is able to communicate with the user interface module, and any other amplifiers that are in the system. The CAN bus is connected through J201C, and J201D if there are multiple amplifiers in the transmitter system. The last task of the coupler conditioning board is to send and receive remote access signals to and from the TxNET board. Two analog outputs, proportional to forward and reflected power and produced by the digital-to-analog converter U212 after it receives input from the microcontroller. The analog outputs are then buffered by U211 before being sent through J203 to the TxNET board. J203, along with J204, also bring the digital inputs and outputs from the TxNET board to the coupler conditioning module. The digital signals are then connected to the microcontroller through the opto-isolators U205, U206, U207, U208, and U209. VI-2 TAV-250 RF Conditioning Module The RF conditioning board is located at the RF input of the amplifier. Its main function is to act as a variable attenuator, so that the control system can add attenuation to the input of the amplifier in order to limit the output power of the transmitter. The RF signal comes in to the RF conditioning module through J302 before it passes through a manually variable attenuator made up of R305, VR303, and R307. The signal then passes through the digitally-controlled variable attenuator U302 before exiting through J303. The input for the digital attenuator comes from the coupler conditioning module through J304. The input signals are passed through the opto-

isolators U303, U304, and U305 before being sent to the digital attenuator. In total, five control signals go to the digital attenuator, allowing for attenuations of up to 31dB in 1dB steps. Temperature Sensor Module The temperature sensor module is a small board mounted to the main heatsink of the amplifier. The main purpose of the temperature sensor module is to take temperature readings of the heatsink. The temperature sensor IC is U1 which, after it has taken a reading, relays the digital information to the coupler conditioning module through J1. Also passing through J1 is a driver disable signal coming from the coupler conditioning module. The temperature sensor module simply takes this signal and passes it through to J2, where it is connected to the driver pallet. TxNET module The TxNET module is simply a passive board that acts as an interface between the wiring on the inside of the amplifier enclosure and connections on the outside of the enclosure. The DB-25 connector for the remote port (J602) is attached to the TxNET module. The signals travelling through this port are connected to the coupler conditioning module through J601 and J603. The TxNET module also includes up to four straight through RJ45 connections: J604 to J605, J606 to J607, J608 to J609, and J610 to J611. These connections are only used on systems with multiple enclosures, to pass control signals between enclosures. VI-3 TAV-250 Remote Port The remote port allows external control of the transmission system via the DB25. The functions of each pin on the remote port are indicated in the following table:

Pin Number Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Ground Forward power sample1 Reflected power sample1 Carrier off2 Carrier on2 Increase carrier level (level must have been decreased) 2 Decrease carrier level (1dB increments) 2 Soft reset2 Reset2 Power supply fault flag3 High temperature flag3 High VSWR flag3 Amplifier overdriven flag3

+5Vdc

+3.3Vdc Ground Ground N/C N/C N/C N/C N/C N/C N/C N/C Notes: 1. Analog output with voltage ranging from 0 to 5Vdc. 2. TTL level digital input, active on rising edge. 3. TTL level digital output, active high. VI-4 TAV-250 Fault Shutdowns On the LCD (Liquid Crystal Display) the following messages may appear:

If you see this message, the system has been driven to a power level higher than it is rated for. This message will likely only appear momentarily, before the amplifier will add attenuation at its input to bring the output power to a safe level. This message indicates that excessive reflected power has been detected at the output of the transmitter. Periodically, the amplifier will cycle on, and re-check for reflected power. If high reflected power continues, the transmitter will eventually shut down completely. This message indicates that the transmitter is experiencing unsafe internal temperatures. Output power is reduced until a safe temperature is reached. VI-5 TAV-250 Monitor and Control System (Insight) Bills of Materials Circuit: User Interface Module Revision: 1.03 Designations Qty Description Package Manufacturer Mfg. Part Number U112 IC MICROCONTROLLER 256 BYTE RAM 1 64QFP Texas Instruments MSP430F135IPM C106, C107, C117, C118, C128, C129, C141, C142, C148, C149, C163 11 CAPACITOR 0.01 uF 50V 10%

0805 Yageo 08052R103K9B20D C108-116, C119-

127, C130-140, C143-145, C161 C146, C147 R101, R104, R107 R110, R113 C162 R132 R133 R134, R135, R136, R137, R138, R139 R140, R141, R144 R145, R146, R147 R150, R151, R156 R142, R143, R148 R149, R154, R155 R152 R119, R122, R125, R128, R131, R153 R158 R160 R161 R162 R157 R117, R118, R120 R121, R123, R124 R126, R127, R129 R130 R159 10 1 R102, R103, R105 R106, R108, R109 R111, R112, R114 R115 RN101 F107 F108 L106, L107, L108, L109, L110 5 1 1 1 6 9 6 1 6 1 1 1 1 1 1 1 1 5 33 2 CAPACITOR 0.1uF 50V 10%

CAPACITOR 33pF 50V 5%

RESISTOR 2.7K CAPACITOR 1uF, 50V RESISTOR 37.4K RESISTOR 3.3K 0805 0805 0805 0805 0805 0805 Yageo Panasonic 08052R104K8B20D ECJ-2VC1H330J Yageo 9C08052A2701FKHFT TDK Corporation C2012Y5V1H105Z Yageo Yageo 9C08052A3742FKHFT 9C08052A3301FKHFT RESISTOR 249K 0805 Yageo 9C08052A2493FKHFT RESISTOR 10K 0805 Yageo 9C08052A1002FKHFT RESISTOR 1K RESISTOR 100 RESISTOR 100K RESISTOR 430 RESISTOR 1.4K RESISTOR 27K RESISTOR 6.2K RESISTOR 4.7 0805 0805 0805 0805 0805 0805 0805 2010 Yageo Yageo Yageo Yageo Yageo Yageo Yageo 9C08052A1001FKHFT 9C08052A1000FKHFT 9C08052A1003FKHFT 9C08052A4300FKHFT 9C08052A1401FKHFT 9C08052A2702FKHFT 9C08052A6201FKHFT Panasonic ERJ-12ZYJ4R7U RESISTOR 0.006 1% 1W 2512 Vishay WSL25126L000FEA POTENTIOMETER 10K 4mm SMD Bourns 3314G-1-103E 10 RESISTOR 20 1W RESISTOR NETWORK 10K RESETTABLE FUSE, POLYFUSE, 2A RESETTABLE FUSE, POLYFUSE,

.5A 2512 SMT Panasonic Panasonic ERJ-1TYJ200U EXB-A10P103J SMD Raychem MINISMDC200-2 SMD Raychem MINISMDC050-2 INDUCTOR 0.01uH 1210 TDK NLV32T-010J-PF VI-6 TAV-250 1 1 1 1 1 1 1 1 2 5 3 6 8 1 1 1 1 5 1 1 1 5 3 1 6 1 1 1 2 6 1 1 1 1 1 1 1 Y101 U111 U114 U113 U115 U116 U117 U118 U109, U110 U101, U102, U103 U104, U105 U106, U107, U108 D101, D103, D105 D107, D109, D111 D102, D104, D106 D108, D110 D113, D115, D117 D114 D116 D118 C152 C156-160 S101 S102 RL101 L101, L102, L103, L104, L105 C153, C154, C155 U119 C101, C102, C103, C104, C105, C150 BZ101 J107 J108 J105,J106 F101, F102, F103, F104, F105, F106 J103 J102 J101 L111 L112 J104 C151 6.00 MHz CRYSTAL SMT Citizen HCM49-6.00 IC SUPERVISOR 2.70V LOW SOT23 Microchip Technology MCP130T-270I/TT IC TXRX 3.3V CAN 8-SOIC Texas Instruments SN65HVD232D IC CAN CONTROLLER W/SPI 18-SOIC Microchip Technology MCP2510-I/SO IC REG SIMPLE SWITCHER TO-263-5 National Semiconductor LM2576HVS-5.0 IC DARL TRANS ARRAY 16-SOIC Texas Instruments ULN2003ADR IC REG LINEAR LDO SOT223 National Semiconductor LM1117MP-3.3 IC VOLTAGE COMVERTER OPTOCOUPLER DUAL CHANNEL 8-SOIC 8-SOIC National Semiconductor LM2660M Fairchild Semiconductor MOCD211M IC CURRENT MONITOR SOT23-5 Texas Instruments INA168NA IC OP AMP SINGLE SUPPLY 8-SOIC Texas Instruments OPA2340UA DIODE TVS 30V D0214AA Crydom SMBJ30A Lumex SML-LX1206GC-TR International Rectifier 30BQ060 DIODE LED GREEN DIODE SCHOTTKY DIODE RECTIFIER 1A 200V DIODE SCHOTTKY 5A 50V CAPACITOR 10uF 16V TANTALUM 1206 SMC SMA SMC 3528 CAPACITOR 22uF 35V TANTALUM D (SMT) Diodes Inc. Diodes Inc. Kemet Kemet SWITCH DIP 7 POSITION SMT 0.1"

CTS HEADER 3POS 0.1"

RELAY SPST 5VDC Through Hole AMP/Tyco SMT Omron S1D-13 B550C-13 or B550C-13F T491B106K016AS T495D226K035ASE300 219-7MST 640452-3 G6L-1F-DC5 INDUCTOR 1.3uH SMT Panasonic CAPACITOR 100uF, 10V D (SMT) Panasonic ETQ-P6F1R3LFA ECE-V1AA101SP IC REG SIMPLE SWITCHER TO-263-7 Texas Instruments LM2679S-ADJ CAPACITOR 100uF 63V G (SMT) Panasonic ECE-V1JA101P BUZZER SMT CUI Inc. CONNECTOR 14POS HEADER Through Hole AMP/Tyco Through Hole Keystone CT-1205C 103308-2 7701 Through Hole AMP/Tyco 5556416-1 CONNECTOR SCREW TERMINAL CONNECTOR MODULAR JACK 8 VERTICAL FUSE AND FUSE HOLDER 42V MINI Through Hole Littelfuse CONNECTOR 5POS HEADER Through Hole AMP/Tyco CONNECTOR, 2 PART 0.3" 10POS Through Hole Weiland CONNECTOR 2 PART 0.3" 6POS Through Hole Weiland INDUCTOR 150uH S6 Talema INDUCTOR 33uH 5A 260kHz Through Hole Pulse 16 POST HEADER Through Hole Samtec CAPACITOR 1000uF, 10V G (SMT) Panasonic 02970xx.WXNV and 01530008Z 3-644695-5 25.390.4053.0 25.390.3653.0 SWS-2.0-150 P0849NL TSW-116-18-T-S ECE-V1AA102P VI-7 TAV-250 Circuit: Coupler Conditioning Revision: 1.04 Designations Qty Description Package Manufacturer Mfg. Part Number C201, C203, C204, C205, C208, C209, C212, C213, C214, C215, C216, C217, C218, C219, C220, C221, C222, C223, C224, C225, C226, C227, C228, C229 C202 C206, C207 C210, C211 D201, D202 D203, D204 D205 D206 J201 J202 J203, J204 J205 J206, J207 K201 L201, L202, L203, L204, L205, L206, L207, L208, L209, L210, L211, L212 R201 R203, R204, R207, R208, R211, R212, R213, R214, R217, R218, R219, R220, R221, R222, R223, Capacitor, ceramic, 0.01uF, 50Vdc,

+/-20%

Capacitor, ceramic, 0.1uF, 50Vdc,

+/-20%

Capacitor, ceramic, 33pF, 50Vdc, 5%

Capacitor, electrolytic, 100uF, 10V,

+/-20%

Diode, TVS, 5.0Vdc, 600W, unidirectional SMD 0805 Kemet C0805C103K5RACTU SMD 0805 Yageo America C0805C104M5UACTU SMD 0805 Panasonic ECJ-2VC1H330J SMD 'D'

Panasonic ECE-V1AA101SP SMB General Semiconductor SMBJ5.0A-13 Diode, LED, red, 2.0V SMD 1206 Lumex SML-LX1206IW-TR Diode, rectifier, 200V, 1A SMA Diodes Inc. S1D-13 Diode, zener, dual, 10V Connector, modular, female, 4-port, 8-position, rt. angle Connector, header, IDC, 0.1"

spacing, 14-pos Connector, modular, female, 8-

position, vertical Connector, header, 3-position, 0.1", square post Connector, header, vertical, 3-pos, 0.1" spacing SOT-23 Diodes Inc. AZ23C10-7-F Through Hole AMP/Tyco Through Hole AMP/Tyco 557562-1 103308-2 Through Hole AMP/Tyco 5556416-1 Through Hole AMP/Tyco 644695-3 Relay, SPST, 5Vdc coil, SMT SMT Omron Through Hole Molex 22-02-2035 G6L-1F-DC5 24 1 2 2 2 2 1 1 1 1 2 1 2 1 Inductor, 0.01uH, Imax=0.45A, DCR=0.13 omhs Resistor, thick film, 5%, 100ohm, 1/8W 12 1 SMD 1210 KOA KL32TE010K SMD 0805 Panasonic ERJ-6GEYJ101V R224 16 R205, R206, R209, R210, R215, R216 RN201, RN202, RN204 RN203 S201 U201 U202 6 3 1 1 1 1 Resistor, thick film, 5%, 1kohm, 1/8W Resistor, thick film, 5%, 10kohm, 1/8W Resistor network, 10kohm, 8-

resistors, 10-terminations, bussed, 5%

Resistor network, 1kohm, 8-

resistors, 10-terminations, bussed, 5%

Switch, DIP, 7-position, SPST IC, supervisor, 2.7V, internal pull-up resistor, open drain, active low IC, microcontroller, 16-bit, 16k X 8 program, 48 I/O, flash SMD 0805 Panasonic ERJ-6GEYJ102V SMD 0805 Panasonic ERJ-6GEYJ103V SMD 2512 Panasonic EXB-A10P103J SMD 2512 Panasonic EXB-A10P102J SMD 0.1"

CTS 219-7MST SOT-23 Microchip Technology MCP130T-270I/TT 64-QFP Texas Instruments MSP430F135IPM VI-8 TAV-250 U203 U204 U205, U206, U207, U208, U209 U210 U211, U214 U212 U213 VR201, VR202 Y201 1 1 5 1 2 1 1 2 1 IC, CAN transceiver, 3.3V SOIC-8 Texas Instruments SN65HVD232D IC, CAN controller, industrial temp, 3 transmit buffers, 2 receive buffers IC, optoisolator, dual, transistor o/p, Vceo=30V 18-SOIC Microchip Technology MCP2510-I/S0 SOIC-8 Fairchild MOCD211M IC, buffer, Darlington, array SOIC-16 Texas Instruments ULN2003ADR IC, op-amp, dual, single supply IC, DAC, dual, 8-bit, serial IC, voltage reference, 2.50V, +/-

0.2%

Potentiometer, 2kohm, 11-turn, 5mm, top Crystal, 6.000MHz SOIC-8 SOIC-8 Texas Instruments OPA2340UA Texas Instruments TLV5625CD SOT-23 National Semiconductor LM4040BIM3-2.5 SMT SMT Murata Citizen PVG5A202C01R00 HCM49-6.00 VI-9 TAV-250 Circuit: RF Conditioning Revision: 1.05 Designations Qty Description Package Manufacturer Mfg. Part Number C301, C306, C311 C302, C303, C305, C312, C320 C304 C307, C308, C310 C309 C313, C314, C315, C316, C317, C318, C319 D301 D302 D303, D304, D305, D306, D307 D308 D309, D310 F301 J301 J301 J302, J303 J304 L301 PCB301 R301 R302, R303 R304, R312, R313, R318, R319, R322 R305, R307 R308, R309, R314, R315, R320 R310, R311, R316, R317, R321 R323 R324 R325, R326, R327, R328, R329 VR301 VR302 Capacitor, ceramic, 0.1uF, 50Vdc,

+/-20%

Capacitor, ceramic, 0.01uF, 50Vdc,

+/-20%

Capacitor, ceramic, 0.022uF, 50Vdc,

+/-10%

Capacitor, ceramic, 1000pF, 50Vdc,

+/-10%

Capacitor, ceramic, 330pF, 50Vdc,

+/-10%

SMD 0805 Yageo America C0805C104M5UACTU SMD 0805 Kemet C0805C103M5RACTU SMD 0805 Panasonic ECJ-2VB1H223K SMD 0805 Kemet C0805C102K5RACTU SMD 0805 Panasonic ECJ-2VC1H331J DNS SMD 0805 Diode, TVS, 30V, 600W SMB Diodes Inc. SMBJ30A-13 Diode, LED, green, Vf=2.2V SMD 1206 Lumex SML-LX1206GW-TR Diode, LED, red, Vf=2.0V SMD 1206 Lumex SML-LX1206IW-TR Diode, ultrafast SOT-23 Fairchild Semiconductor MMBD914 DNS Fuse, resettable, miniSMD, Ihold =

0.14A, Itrip = 0.34A Connector, terminal block, header, 2-position, straight Connector, terminal block, plug, 2-

position, straight Connector, SMA, PCB End Launch, 50-ohms Connector, modular, female, 8-

position, vertical Inductor, 0.01uH Printed circuit board, FR4, proto 2 or equivalent Resistor, thick film, 5%, 620ohm, 1W TO-92 Fuse-miniSMD Littelfuse MINISMDC014-2 PCB THT

(0.2") Wieland 25.350.3253.0

Wieland 25.340.3253.0 PCB End Launch Johnson Components 142-0701-801 PCB THT Amp (Tyco) 5556416-1 1210 TDK NLV32T-010J-PF

Alberta Printed Circuits PCB301 SMD 2512 Panasonic ERJ-1TYJ621U DNS Resistor, thick film, 5%, 1.0kohm, 1/8W Resistor, thick film, 1%, 130ohm, 1/8W Resistor, thick film, 5%, 1.2kohm, 1/8W Resistor, thick film, 5%, 10kohm, 1/8W SMD 0805 Yageo America 9C08052A1001JLHFT SMD 0805 Yageo America 9C08052A1300FKHFT SMD 0805 Yageo America 9C08052A1201JLHFT SMD 0805 Panasonic 9C08052A1002JLHFT Resistor, 100ohm, 1/8W SMD 0805 Yageo America 9C08052A1000FKHFT Resistor, 3.3ohm, 1/8W SMD 0805 Yageo America 9C08052A3R32FGHFT DNS SMD 0805 Potentiometer, 5kohm SMD 5MM Murata PVG5A502C01R00 DNS SMD 5MM 3 5 1 3 1 4 1 1 5 1 2 1 1 1 2 1 1 1 1 2 6 2 5 5 1 1 5 1 1 VI-10 TAV-250 VR303 S301 U301 U302 U303, U304, U305 U306 U307 U308 U309 1 1 1 1 3 1 1 1 1 Potentiometer, 200ohm Switch, DIP, 5-position, SPST, gold finish, sealed IC, voltage regulator, 5V output, 500mA IC, digital attenuator, 5-bit, 1dB LSB IC, optoisolator, dual, transistor o/p, Vceo=30V SMT 5MM CTS 219-5 Murata PVG5A201C01R00 SMD CTS Corporation 219-5MST TO-252 National Semiconductor LM78M05CDT SSOP-20 Skyworks (Alpha) AA110-85 SOIC-8 Fairchild Directional coupler Mini-Circuits IC, power detector DNS (replace with two 0805 0ohm resistors) DNS TSSOP-16 Analog Devices TO-243 MOCD211M DBTC-20-4 AD8362ARU VI-11 TAV-250 Circuit: Temperature Sensor Revision: 1.02 Designations Qty Description Package Manufacturer Mfg. Part Number C701 J701 J702 U701 1 1 1 1 CAPACITOR 0.1uF 50V 10%

CONN MOD JACK 8-8 R/A PCB 50AU SMT Molex TERMINAL SCREW VERTICAL PC MNT Keystone 44144-0003 8191 0805 Yageo 08052R104K8B20D IC DIG TEMPERATURE SENSOR 8-MSOP National Semiconductor LM70CIMM-3 VI-12 TAV-250 Circuit: TxNet Revision: 1.02 Designations Qty Description Package Manufacturer Mfg. Part Number F601, F602, F603, F604 Fuse, resettable, Ihold=0.14A, Itrip=0.34A, Vmax=60V 4 SMD Tyco MINISMDC014-2 J601, J603, J604, J605, J606, J607, J608, J609, J610, J611 J602 Connector, modular, jack, 8-

position, vertical, PCB mount Connector, D-sub, 25 position, female, vertical, PCB mount 10 1 Tyco Kycon 5556416-1 K85-BD-25S-R VI-13 TAV-250 Insight System Schematics The following pages contain the schematics for the Insight system. VI-14 TAV-250 User Interface Module DC Supply Conditioning Vin V1 Input J101A F101 TAC 58V see table SMBJ30A TV SMBJ48A FM D101

C101100uF 63V V2 Input J101B F102 TAC 58V see table SMBJ30A TV SMBJ48A FM D103

C102100uF 63V V3 Input J101C F103 TAC 58V see table SMBJ30A TV SMBJ48A FM D105

C103100uF 63V V4 Input J101D F104 TAC 58V see table SMBJ30A TV SMBJ48A FM D107

C104100uF 63V V5 Input J101E F105 TAC 58V see table SMBJ30A TV SMBJ48A FM D109

C105100uF 63V F106 TAC 58V tbd SMBJ30A TV SMBJ48A FM D111 GND IN J101F Fuse Table PA5-UHF PA10-UHF P50-UHF P150-UHF U60LD UHF U200LD UHF P350-FM P750-FM 2 A 3 A 10 A 10 A/side 3 A 7.5 A/side 15 A 15 A/side PA25-VHF-L PA25-VHF-H P200-VHF-L P200-VHF-H P400-VHF-L P400-VHF-H 4 A 5 A 15 A 15 A 15 A/side 10 A/side 1 R101 2.7k TV 4.87k FM D102Green SML-LX1206GW R104 2.7k TV 4.87k FM D104Green SML-LX1206GW R107 2.7k TV 4.87k FM D106Green SML-LX1206GW R110 2.7k TV 4.87k FM D108Green SML-LX1206GW R113 2.7k TV 4.87k FM D110Green SML-LX1206GW L101 ETQ-P6F1R3LFA V1 Cond R10220 R103 20 L102 ETQ-P6F1R3LFA V2 Cond R10520 R106 20 L103 ETQ-P6F1R3LFA V3 Cond R10820 R109 20 L104 ETQ-P6F1R3LFA V4 Cond R11120 R112 20 L105 ETQ-P6F1R3LFA V5 Cond R11420 R115 20 VgenCond A. Sivacoe, N. Hendrickson User Interface Module Rev B Date: April 30, 2005 Page: 1 of 9 Insight Control System ID TAV-250 Current Monitoring User Interface Module R117 0.012 R118 0.012 U101 INA168 2 R120 0.012 R121 0.012 U102 INA168 2 4 1 4 1 3 5 C108 0.1uF 3 5 C113 0.1uF R123 0.012 R124 0.012 U103 INA168 2 R126 0.012 R127 0.012 U104 INA168 2 4 1 4 1 3 5 C119 0.1uF 3 5 C124 0.1uF

R119100k U106A OPA2340UA R122100k U106B OPA2340UA R125 100k U107A OPA2340UA R128 100k U107B OPA2340UA V1 Cond V2 Cond V3 Cond V4 Cond 2 L106 0.01uH C1070.01uF

+3.3 Vdc C1060.01uF J102A V1 Out C1090.1uF C1100.1uF C111 0.1uF C112 0.1uF I1 Buff J102B V2 Out C1140.1uF C115 0.1uF C116 0.1uF I2 Buff L107 0.01uH C118 0.01uF

+3.3 Vdc C117 0.01uF J102C V3 Out C1200.1uF C1210.1uF C122 0.1uF C123 0.1uF I3 Buff J102D V4 Out C1250.1uF C126 0.1uF C127 0.1uF I4 Buff A. Sivacoe, N. Hendrickson User Interface Module Rev B Date: April 30, 2005 Page: 2 of 9 Insight Control System ID TAV-250 Voltage/Current Monitoring User Interface Module L108 0.01uH C129 0.01uF C128 0.01uF

+3.3 Vdc J102E V5 Out

R131 100k U108A OPA2340UA C1310.1uF C1320.1uF C133 0.1uF C134 0.1uF R129 0.012 R130 0.012 U105 INA168 2 4 1 3 5 C130 0.1uF R132 37.4k - TV 68.1k - FM R1333.3k

U108B OPA2340UA R134 249k C1350.1uF V5 Cond Vin I1 Buff I2 Buff I3 Buff I4 Buff I5 Buff R135 249k R136 249k R137 249k R138 249k R139 249k C136 0.1uF C137 0.1uF C138 0.1uF C139 0.1uF C140 0.1uF R144 10k R145 10k R150 10k R151 10k Membrane Switch Inputs

+3 Vdc R140 10k R141 10k R142 1k R143 1k U109 MOCD211M P1 P2 P3 P4 P8 P7 P6 P5 R146 10k R147 10k R148 1k R149 1k U110 MOCD211M P1 P2 P3 P4 P8 P7 P6 P5 Pow-IN Nav-IN J103D J103A

+3 Vdc Sel-IN Res-IN GND J103B J103E J103C 3 I5 Buff V1 ADC I1 ADC I2 ADC I3 ADC I4 ADC I5 ADC Pow-uPC Nav-uPC Sel-uPC RESET A. Sivacoe, N. Hendrickson User Interface Module Rev B Date: April 30, 2005 Page: 3 of 9 Insight Control System ID TAV-250 User Interface Module Microcontroller L109 0.01uH C141 0.01uF C142 0.01uF U111 MCP130 Vcc Reset D N G C143 0.1uF C144 0.1uF C146 30pF C147 30pF Y101 6.00MHZ tbdC145 c c V A s s V D 3 6 P s s V A 2 6 P 2 A 1 6 P 1 A 0 6 P T S R 8 5 P 9 5 P 0 A K C T S M T 6 5 P I D T 5 5 P O D T 4 5 P 7 5 P 4 6 P 3 5 P 2 5 P 1 5 P 0 5 P 9 4 P DVccP1 A3P2 A4P3 A5P4 A6P5 A7P6 P7 XinP8 XoutP9 P10 P11 P1 0P12 P1 1P13 P14 P15 P16 U112 MSP430F133 MCLK P48 P47 P46 P45 P44 P43 P42 P41 P40 P39 P38 P37 P36 P35 P34 P33 7 1 P 8 1 P 9 1 P 0 2 P 1 2 P 2 2 P 3 2 P 4 2 P 5 2 P 6 2 P 7 2 P 8 2 P 9 2 P 2 3 P 0 3 P 0 I M O S 1 3 P 0 K L C U 0 O M I S 2 2 P

- DIP SWITCH 7,6,5 SET ID

- DIP SWITCH 2 SETS CALIBRATION MODE

- DIP SWITCH 1 ENABLES CAN BUS TERMINATION S101 7 6 5 4 3 2 1 CANterm1 CANterm2 RN101 10k

+3.3 Vdc I1 ADC I2 ADC I3 ADC I4 ADC I5 ADC V1 ADC Pow-uPC Nav-uPC Sel-uPC 4 J104 RESET TCK TMS TDI TDO CAN CLK LED1 Buzzer BkLtCtrl Pin15LCD LED A LED K LCD D7 LCD D6 LCD D5 LCD D4 LCD D3 LCD D2 LCD D1 LCD D0 LCD E LCD R/*W LCD RS LCD Vo LCD Vdd LCD Vss

+5 Vdc Pin3LCD SCK SOMI SIMO CAN CS

+3.3 Vdc A. Sivacoe, N. Hendrickson User Interface Module Rev B Date: April 30, 2005 Page: 4 of 9 Insight Control System ID TAV-250 User Interface Module CAN and Programmer Interface

+3.3Vdc L110 0.01uH C148 0.01uF C149 0.01uF U114 SN65HV232 P8 P7 P6 P5 DP1 GNDP2 VccP3RP4 J105D J106D J105F J106F J105E J106E J106A J105H J106H J105G J106G

+5Vdc

+3.3Vdc RESET CANH CANL R152 100 TXCANP1 RXCANP2 P3 P4 P5 P6 P7 P8 OSC1P9 VssP10 U113 MCP2510 Vdd RESET CS SO SI SCK P20 P19 P18 P17 P16 P15 P14 P13 P12 P11 CAN CLK SCK SIMO SOMI CAN CS TDO TDI TMS TCK 5

+5V-1

+5V-2

+3.3V-1

+3.3V-2 GND-1 GND-2 RESET-2 CANH-1 CANH-2 CANL-1 CANL-2 CANterm1 CANterm2 RESET

+3.3Vdc R153 100k J107 JTAG header A. Sivacoe, N. Hendrickson User Interface Module Rev B Date: April 30, 2005 Page: 5 of 9 Insight Control System ID TAV-250 Power Supplies VgenCond LED1 Buzzer BkLtCtrl

+5 Vdc U115 LM2576S-5.0 Feedbk Vin f f O

n O

+C150 100uF d n G Vout User Interface Module F107 Littlefuse 1812L L111 100uH D114 30BQ060

+C151 1000uF

+5 Vdc R154 tbd D115

+5V LED U116 ULN2003 P1 P2 P3 P4 P5 P6 P7 P8 P16 P15 P14 P13 P12 P11 P10 P9 D113 Green SML-LX1206GW R155 1k RL101 G6L-1F 5Vdc D116 S1D-13 BZ101 R156 10k LM1117MP-3.3 U117 IN OUT COM C152 10uF 10V tantalum F108 Littlefuse 1812L C153 100uF R157 4.7 Pin15LCD

+3.3 Vdc R158 430 D117

+3.3V LED U118 LM2660M P8 P7 P6 P5 P1 P2 P3 P4 C155 100uF

+C154 100uF S102 R160 1.4k R161 27k Pin3LCD R159 10k 40%

LM2679 U119 tFeedbk Cboost Vout r a t S t f o S VgenCond C156 22uF C15722uF C158 22uF Vin s d a R d n G C161 0.1uF R162 6.2k 6 C1630.01uF L112 33uH J108 FanOut D118 DIODE C159 22uF C160 22uF C162 1uF A. Sivacoe, N. Hendrickson User Interface Module Rev B Date: April 30, 2005 Page: 6 of 9 Insight Control System ID TAV-250 Microcontroller

+3.3 Vdc FWD-POW RFL-POW DRVR DIS LED1 LED2 Coupler Conditioning Module U201 MCP130 Vcc Reset D N G C201 0.01uF C202 0.1uF L201 0.01uH C204 0.01uF C203 0.01uF L202 0.01uH C205 0.01uF s s V D c c V A 4 6 P s s V A 2 6 P 3 6 P T S R O D T S M T K C T 7 5 P I D T 5 5 P 6 5 P 8 5 P 0 A 9 5 P 2 A 1 A 1 6 P 0 6 P 4 5 P 3 5 P 2 5 P 1 5 P 0 5 P 9 4 P C20633pF C20733pF Y201 6.00MHZ DVccP1 A3P2 A4P3 A5P4 A6P5 A7P6 P7 XinP8 XoutP9 P10 P11 P1 0P12 P1 1P13 P14 P15 P16 U202 MSP430F133 P48 P47 P46 P45 P44 P43 P42 P41 P40 P39 P38 P37 P36 P35 P34 P33 7 1 P 8 1 P 9 1 P 0 2 P 1 2 P 3 2 P 4 2 P 5 2 P 6 2 P 7 2 P 8 2 P 2 2 P 2 2 P 2 3 P 0 3 P 9 2 P 0 O M I S 0 I M O S 1 3 P 0 K L C U PSU TEMP VSWR OVERDRV SOFT RES CAR ON CAR OFF CAR UP CAR DOWN C208 0.01uF

+5 Vdc ATEN-Vcc ATEN1 ATEN2 ATEN3 ATEN4 ATEN5 L203 0.01uH C2090.01uF J201a4 J201a2 J201a1 J201a3 J201a5 J201a7 1 RESET TCK TMS TDI TDO CAN CLK

- DIP SWITCH 3,2,1 SET ID

- DIP SWITCH 7 ENABLES CAN TERMINATION MCLK RN201 10k S201 1 2 3 4 5 6 7 J201b2 J201b4 J201b3 J201b8 J201b1 CANterm1 CANterm2

+3.3 Vdc DAC CS SCK SOMI SIMO CAN CS TMP VCC TMP SCK TMP SO TMP CS TMP GND N. Hendrickson, A. Sivacoe Coupler Conditioning Rev 1.04 Insight Control System Date: June 17, 2005 Page: 1 of 4 ID TAV-250 Coupler Conditioning Module C210 100uF D201 C211 100uF D202

+5Vdc

+3.3Vdc RESET CAN and Programmer Interface

+3.3Vdc L204 0.01uH C212 0.01uF C213 0.01uF J201c4 J201d4 J201c6 J201d6 J201c2 J201d2 J201c1 J201c8 J201d8 J201c7 J201d7

+5V-1

+5V-2

+3.3V-1

+3.3V-2 GND-1 GND-2 RESET-1 CANH-1 CANH-2 CANL-1 CANL-2 CANterm1 CANterm2 RESET U203 SN65HV232 P8 P7 P6 P5 DP1 GNDP2 VccP3RP4 CANH CANL R201 100 U204 MCP2510 CAN CLK SCK SIMO SOMI CAN CS TDO TDI TMS TCK 2 J202 JTAG header

+3.3Vdc N. Hendrickson, A. Sivacoe Coupler Conditioning Rev 1.04 Insight Control System Date: June 17, 2005 Page: 2 of 4 ID TAV-250 Coupler Conditioning Module Remote Access Port U206 MOCD211M P1 P2 P3 P4 R204 1k P8 P7 P6 P5 R20510k U208 MOCD211M P1 P2 P3 P4 R208 1k P8 P7 P6 P5 R20910k J203 1 2 3 4 5 6 7 8 8J204 7 6 5 4 3 2 1 R20610k R21010k 1 2 202RN 10k 3 202RN 10k 1 203RN 1k 4 3 202RN 10k 8 202RN 10k 4 203RN 1k 3 2 204RN 10k 7 204RN 10k 6 203RN 1k

+3.3 Vdc CAR OFF CAR ON 9 8 202RN 10k 202RN 10k CAR DOWN CAR UP 7 6 202RN 10k 202RN 10k SOFT RES RESET 1 204RN 10k U205 MOCD211M P1 P2 P3 P4 203RN 1k P8 P7 P6 P5 U207 MOCD211M P1 P2 P3 P4 203RN 1k P8 P7 P6 P5 U209 MOCD211M P1 P2 P3 P4 203RN 1k P8 P7 P6 P5 U210 ULN2003 P1 P2 P3 P4 P5 P6 P7 P8 P16 P15 P14 P13 P12 P11 P10 P9 R211 1k R212 1k D203 D204 c d V 5

D205 K201 R2131k J205 L205 0.01uH C214 0.01uF C215 0.01uF J201 b7 DISABLE N. Hendrickson, A. Sivacoe Coupler Conditioning Rev 1.04 Insight Control System Date: June 17, 2005 Page: 3 of 4 ID R2031k R2071k

+5 Vdc OVERDRV VSWR TEMP PSU RFL-OUT FWD-OUT

+3.3 Vdc DRVR DIS LED1 LED2 3 TAV-250 RF Power Output

+5 Vdc SIMO SCK DAC CS Coupler Input

+5Vdc FWD-GND FWD-5V FWD-IN J206A J206B J206C RFL-GND RFL-5V RFL-IN J207A J207B J207C 4 Coupler Conditioning Module C216 0.01uF L206 0.01uH C217 0.01uF R214 1k U212 TLV5625 P1 P2 P3 P4 P8 P7 P6 P5 U213 LM4040-2.5 R21510k R216 10k U211A OPA2340UA

FWD-OUT 3 D206A 1 U211B OPA2340UA RFL-OUT 2 D206B 1 L207 0.01uH C218 0.01uF L209 0.01uH C222 0.01uF L211 0.01uH C226 0.01uF C219 0.01uF C223 0.01uF R219 1k C227 0.01uF R223 1k R217 1k U214A OPA2340UA R221 1k U214B OPA2340UA

L208 0.01uH C220 0.01uF C221 0.01uF

+3.3 Vdc L210 0.01uH FWD-POW C2240.01uF C2250.01uF L212 0.01uH RFL-POW C2280.01uF C2290.01uF R218 1k VR201 R222 1k VR202 R2201k R224 1k N. Hendrickson, A. Sivacoe Coupler Conditioning Rev 1.04 Insight Control System Date: June 17, 2005 Page: 4 of 4 ID TAV-250 PSU In Ground J301 1 J301 2 F301 R301 R302 L301 U301 IN OUT COM D301 R303 C301 C302 C303

+5 Vdc R304 D302 RF 2 U302 Alpha 110-85 P1 P20 P19 P2 P18 P3 P17 P4 P16 P5 P15 P6 P14 P7 P13 P8 P12 P9 P11 P10 CTL 1dB CTL 2dB CTL 4dB CTL 8dB CTL 16dB C304

+5 Vdc C305 C306 RF OUT J303 Ext 5Vdc 2dB in 1dB in J304 4 J304 2 J304 1 S301 1 S301 2 U303 P1 P2 P3 P4 R308 R309 8dB in 4dB in J304 5 J304 3 S301 3 S301 4 U304 P1 P2 P3 P4 R314 R315 16dB in J304 7 S301 5 U305 P1 P2 P3 P4 R310 R311 R312 R313 D303 D304 R316 R317 R318 R319 D305 D306 P8 P7 P6 P5 P8 P7 P6 P5 P8 P7 P6 P5

+5 Vdc CTL 2dB CTL 1dB CTL 8dB CTL 4dB D308 Shutdown CTL 16dB R320 R321 R322 D307 A. Sivacoe, N. Hendrickson RF Conditioning Module Rev 1.04 Date: Sept. 19, 2005 Page: 1 of 2 Insight Control System ID TAV-250 RF 1 U306 DBTC-20-4 V DIR. COUPLER V C307 R323 C308 RF 2 P1 P2 P3 P4 P5 P6 P7 P8 U307 AD8362 DIP16 P16 P15 P14 P13 P12 P11 P10 P9 C309 C310 R324 C311 C320 VR301

+5 Vdc Shutdown RF IN J302 R305 VR303 R307 RF 1 U308 SAGE WIRE -HCT2 HYBRID COUPLE C313 R325 R326 D309 R327 C315 C316 C312 C314 D310 PSU In U309 78L20 IN OUT COM C317 R329 R328 VR302 C318 C319 A. Sivacoe, N. Hendrickson RF Conditioning Module Rev 1.04 Date: Sept. 19, 2005 Page: 2 of 2 Insight Control System ID TAV-250 Temperature Sensor DRV DIS TMP SO TMP SCK TMP GND TMP VCC TMP CS J1G J1C J1D J1A J1B J1H U1 LM70 P1 P2 P3 P4 P8 P7 P6 P5 C1 1uF J2 TMP VCC 1 N. Hendrickson, A. Sivacoe Temperature Sensor Board Rev 1.02 Date: May 8, 2005 Insight Control System Page: 1 of 1 ID TAV-250 PSUflag RFL samp TEMPflag FWD samp VSWRflag ODRVflag ground CAR on CAR off CAR up

+5 Vdc CAR down

+3.3 Vdc Soft RES RESET IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 J601 J603 J604 J606 J608 J610 1 2 3 4 5 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 F601 F602 F603 F604 J602 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 23 22 21 20 19 18 17 16 15 14 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 J605 J607 J609 J611 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 ID TxNET Rev 1.02 Date: Dec. 5, 2005 Page: 1 of 1 TAV-250 Section VII Mechanical Section The heat sink allows the amplifiers to operate at a cooler temperature and prevents overheating, which helps the longevity of the entire system. The heat sink has hollow fins, which help dissipate the heat from the amplifiers faster than a conventional serrated or corrugated fin. In addition to the cooling effects of the heat sink, within the 250-watt power amplifier enclosure, there are two fans that each provide 170 cubic feet per minute (CFM) of air flow (into zero static pressure). There is one fan mounted at the front of the heat sink and one mounted at the back end of the heat sink. The fans are mounted at each end to produce the best cooling for the system and are operating in a push-pull configuration to assist with heat dissipation. The fans are a 24Vdc variety, so there are series dropping resistors to drop the higher power supply voltage down to a safe level. VII-1 TAV-250 Section VIII - Installation This section contains installation recommendations, unpacking, inspection, and installation instructions for the power amplifier. We are sure that you are chomping at the bit to install your new system, so we recommend that you read the following sections very carefully. Building Recommendations The quality of the building is of great importance if you are to expect long life and continued performance from the power amplifier. The building must be clean, dry, temperature controlled and secure. Dont forget to allow space in the building for any additional racks to house test equipment, a workbench area, line regulating transformers, ladders, equipment and parts storage, first aid kit, emergency generator if used, as well as heating and cooling devices that may be unique to your installation. A sloping roof will tend to develop leaks less rapidly. The building should be well roofed with good material. The cooling load will be lowered with reflective or light colored roofing material. Technalogix Ltd. VIII-1 TAV-250 Heating and Cooling Requirements The environments temperature will contribute greatly to the length of the power amplifiers life. Technalogix recommends that the buildings filtered air intake must have capacity for all air-flow in the building plus an additional 20%. Keep the intake below the roofline to avoid intake of solar heated air. Please ensure that the intake and exhaust areas are on the same side of the building to avoid pressure differentials during windy conditions. Also, do not position intake near exhausts preheated air. If air conditioning is required to cool the shelter, discuss the situation with a qualified HVAC technician. Under average conditions, 12,000 BTUs will cool approximately 500 square feet to a comfortable level. Technalogix Ltd. VIII-2 TAV-250 Electrical Service Recommendations Technalogix recommends that a qualified, licensed local electrician be consulted for the required electrical service. We suggest local electricians because:

The personnel knows the local codes The personnel can be on site readily You are apt to get better overall support if you give what business you can to local suppliers Technalogix recommends that proper AC line conditioning and surge suppression be provided on the primary AC input to the power amplifier. All electrical service should be installed with your national electrical code in your area, any applicable provincial or state codes, and good engineering practice. Special consideration should be given to lightning protection of all systems in view of the vulnerability of most transmitter or translator sites to lightning. Lightning arrestors are recommended in the service entrance. Straight and short grounds are recommended. The electrical serviced must be well grounded. Do not connect the unit to an open delta primary power supply, as voltage fluctuations could harm the unit. Branch your circuits. Do not allow your lights, your workbench plugs, and your transmitting or translating equipment to operate on one circuit breaker. Each transmitter or translator should have its own circuit breaker, so a failure in one does not shut off the whole installation. Technalogix Ltd. VIII-3 TAV-250 Antenna and Tower Recommendations Your preliminary engineering workgroup should establish your antenna and tower requirements, both for receiving and transmitting antennas. Construction of sturdy, high quality antenna/tower systems will pay off in terms of coverage of your service area, the overall quality and saleability of your radiated signal, and reduced maintenance expenses. Technalogix provides complete turnkey antenna systems if needed. If your site is serving as a translator, your receiving antenna should be in line of sight to the originating station all year round. The foliage will change with season. Transmitting antennas can enhance or seriously impair the transmitter/translator output. The selection, routing, and length of coaxial cable are extremely important in the installation. If there is a 3 dB line loss in the cable between your units output and the transmitting antenna, a 250-watt unit will only deliver 125 watts to the antenna. Buy the best cable you can obtain, route it via the shortest way to the antenna, and keep it straight. Do not form it into sharp bends on its way. Do not use any more cable fittings for the installation than absolutely necessary. All cautions here apply equally to all coaxial cables in the system - input and output. Pay attention to radial ice accumulation when designing the transmission system. It is not uncommon for at least an inch of ice to build up on the tower and antenna. This in turn significantly increases the weight, cross section, and wind loading of the system. Attaching the transmission line to the tower is crucial to maintain a safe and reliable operation. Nylon wire ties and electrical tape will breakdown in the sunlight and ultimately fail, creating a potentially dangerous situation. It is important to use proper clamps and hoisting grips and also ensure that the transmission line is grounded to the tower in several locations. When high currents flow through the tower in the event of lightening strikes, some of that current will through the outer conductors of the transmission lines. Due to the resistance difference between the steel tower and copper transmission line, a significant voltage can be developed, often resulting in arcing between the outer jacket and outer conductor, thus pitting the conductor. Preventative maintenance is crucial in ensuring that safety is maintained. Specifically, check that transmission line grounds are tight and are not missing any hardware. Frequently inspect support clamps or spring hangers. Consider investing in an ice break, if you havent already done so, as shards of falling ice can damage the transmission line and if it is going to happen, it will happen at an important time. Check the tower light photocells and conduit. The better-known tower manufacturers offer complete technical and safety documentation with their towers. Be sure that you have this information as it regards wind loading, guying, etc. The best-

designed antenna system will function poorly if shortcuts and compromises are used during installation. Follow the manufacturers instructions exactly, along with any engineering data prepared for the site. Be absolutely safe and certain about this aspect as human lives may be at stake. Technalogix Ltd. VIII-4 TAV-250 Shelter Security The FCC requires that the transmitter or translator be secure from entry or control by unauthorized persons, and that any hazardous voltages or other dangers (including most tower bases) be protected by locks or fences as necessary to protect personnel and prevent unauthorized tampering or operation. Security of the building further implies that it be secure from wildlife. Use sturdy construction materials, including sheet metal if necessary. Holes around conduit, cable, and other similar entry points should be stuffed with steel wool and caulked to prevent entry of wildlife. Other features of security for your shelter may include its location with respect to the prevailing wind conditions. A location leeward of some natural topographical feature will prevent wind damage and snowdrifts. Check the soil runoff conditions that may slow or hasten wind or water erosion and other concerns that may be unique to your location. Technalogix Ltd. VIII-5 TAV-250 Unpacking and Inspection Check the outside of the container. Carefully open the container and remove the power amplifier. Retain all packing material that can be reassembled in the event that the equipment must be returned to the factory. Exercise care in handling equipment during inspection to prevent damage due to rough or careless handling. Visually inspect the enclosure of the power amplifier for damage that may have occurred during shipment. Check for evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneous packing material in connectors or fan failures. Inspect all connectors for bent connector pins. If the equipment is damaged, a claim should be filed with the carrier once the extent of the damage is assessed. Technalogix cannot stress too strongly the importance of immediate careful inspection of the equipment and subsequent immediate filing of the necessary claims against the carrier if necessary. If possible, inspect the equipment in the presence of the delivery person. If the equipment is damaged, the carrier is your first area of recourse. If the equipment is damaged and must be returned to the factory, phone for a return authorization. Claims for loss or damage may not be withheld from any payment to Technalogix, nor may any payment due be withheld pending the outcome thereof. Technalogix cannot guarantee the carriers performance. Technalogix Ltd. VIII-6 TAV-250 Location and Function of Controls and Connectors (TAV-250 Power Amplifier) The following illustration depicts the location of the connectors when installing the 250-watt power amplifiers (TAV-250). Technalogix Ltd. VIII-7 TAV-250 POWER -

NAVIGATE -

SELECT-

RESET -

RF IN RF OUT REMOTE PORT -

AC IN AC BREAKER AC ON/OFF -

Tactile button to turn carriers on and off. Tactile button to move between menu items, or to refresh the screen after it has timed out. Tactile button to select menu item, or to refresh the screen after it has timed out. Tactile button to reset microcontroller in control board. Also clears existing faults. The amplifier will come back on with the soft start feature. RF input from modulator or processor. BNC connector, 50 ohm. 100-watt RF output. Connects to inline wattmeter (not supplied) and antenna. N connector, 50 ohm. Port to monitor and control the amplifier externally. See Monitor and Control section for pin-out. AC input to switching power supply. Resettable circuit breaker is used to protect against inrush currents and high current draw from switching power supply. The thermal circuit breaker is a single pole configuration. AC rocker switch (SPST) to supply AC to the AC-DC switching power supply Technalogix Ltd. VIII-8 TAV-250 Initial Hook Up 1. Ensure that the antenna has been swept and has a return loss of greater than 20dB (VSWR

= 1.2:1). This should be done before connecting the antenna cable to the transmitter output. 2. Check that your video source is present. 3. Place the transmitter/translator in its permanent location near a receptacle supplying required AC voltage. DO NOT APPLY AC POWER AND TURN ON POWER TO THE TRANSMITTER / TRANSLATOR AT THIS TIME SINCE THE RF OUTPUT MUST BE PROPERLY LOADED BEFORE OPERATION. 4. Place an appropriate AC power line protector, conditioner, and/or surge suppressor across the AC supply line. 5. Hook up the modulator or processor as shown in their respective manuals for a transmitter or translator. Do not connect the modulated signal from the RF OUT on the modulator or processor to RF IN on the power amplifier at this time. Because of the characteristics of LDMOS devices, the RF drive should not be connected to the power amplifier until after the power supply and bias voltages are present and stable. 6. Plug power amplifier into AC mains. 7. Switch AC rocker switch to on position. 8. Ensure that the audio modulation is set to 100% with the audio signal supplied, as described in the appropriate modulator/processor manual (will be factory set). 9. Ensure that the video modulation level is set to 87.5% with the video signal supplied, as described in the appropriate modulator/processor manual (will be factory set). 10. Connect the transmitting antenna cable to the RF OUT N-type connector on the power amplifier enclosure RF output. Technalogix Ltd. VIII-9 TAV-250 Section IX - Operating Procedure Assuming the previous installation instructions have been completed and cautions noted, and the TAV-250 power amplifier is ready to receive a properly modulated video and audio signal, proceed with the following steps to place the system in operation. The TAV-250 power amplifier has been factory aligned for channel frequency (per system specification), signal levels and optimum performance. IT IS HIGHLY RECOMMENDED THAT YOU RUN YOUR SYSTEM INTO A DUMMY LOAD BEFORE INSTALLING TO MAKE SURE THERE ARE NO DAMAGES CAUSED IN SHIPPING AND THE UNIT IS RUNNING PROPERLY 1. Do not apply RF drive signal to the power amplifier at this time. 2. Verify that all control and RF cables are tight and properly seated in or on the mating connector. 3. Plug the modulator or processor into AC mains. 4. Plug the 5U power amplifier enclosure into AC mains. 5. Switch AC rocker switch to ON position. 6. Verify that the power amplifier enclosures fan is on. 7. Ensure that the modulator/processor is turned on and set up according to its instructions. Depress the POWER tactile button to turn the unit on. 8. The internal soft start circuitry will turn the bias voltages off until the power supply to the amplifier pallets is fully stable. The message on the LCD indicates when the soft start is running. Once complete, the Forward and Reflected Power and Power Supply readings will appear on the LCD. 9. After the soft start is complete, apply the RF drive signal (which still should be turned down) between the modulator or processor and the power amplifier RF In. This ensures that the RF drive signal is applied only after the power supply is stable and the bias voltages are applied to the amplifier. IX-1 TAV-250 10. The TAV-250 LCD shows the user the present status of the amplifiers. Adjust RF output power to desired level (see Important RF Power Notice in previous section). Verify that the FWD Power reads 80% to 100% on the filter enclosure - depending on signal content. The system is set up for 250 watts peak visual power using the sync and blanking signal and should read 100

% FWD Power on the LCD under this condition only. The output power level can be adjusted using the modulator or processors RF output level adjust. Keep in mind that the system will attenuateshould the forward RF output power level be exceeded. 11. Ideally, the RFL Power should read zero. However, should a high VSWR be detected, the system will automatically shut down and cycle as previously described. This reading is also displayed as a percentage of rated forward power. 12. Verify that the power supply reads approximately 30 Volts DC (see supplied final inspection sheet for factory settings of power supply levels) on the LCD of the power amplifier. 13. Look at the transmitted output using a suitable monitor. The picture and sound quality should be clean and sharp. If the output picture and sound quality is unsatisfactory, check the input signals, connections to the antenna system, antenna and transmission line VSWR, and the physical condition of the antenna. If reception problems are encountered, and the quality of transmission is satisfactory, the difficulty is often with the receiving antenna or with obstructions in the path between the transmitter/translator and receiver. IX-2 TAV-250 Section X Maintenance and Troubleshooting Periodic Maintenance If your unit employs a filter on the air inlet for the fans, the filter should be cleaned every 30 days. If the equipment is operated in a severe dust environment, the filters on the inlet fan may need to be cleaned more regularly. Turn the system off and unplug all of the AC inlet cords. The filter can be lifted off the fan and cleaned using an air compressor at low pressure. While the filter is out, clean the fan blades themselves with a small brush. The fans themselves do not need lubrication. The interior of the cabinets should be cleaned and inspected annually. Turn the system off and unplug all of the AC inlet cords. Remove the top lid by unscrewing the 6-32 machine screws. Use extreme caution when working near the AC input terminal. The power amplifier and power supply store hazardous capacitances and voltages. Using either compressed air or a brush with soft bristles, loosen accumulated dust and dirt and then vacuum the interior of the cabinet. Complete a visual inspection of the interior, making sure there are no loose connections or discolorations on any components from heat. Nothing inside the power amplifier enclosure exceeds a temperature that is not comfortable to the touch under normal operating conditions, so any signs of discoloration indicate potential damage. All modular components inside the enclosure are attached to aluminium mounting plates for easy removal and replacement. Ensure that plates are secured and the mounting hardware is tight. X-1 TAV-250 Troubleshooting The first and most important aspect of troubleshooting anything is to be systematic. Note where you have looked and what you found. Look first for the obvious. Make a physical inspection of the entire facility. Are all necessary connections properly made? Do you see any signs of obvious damage within the equipment?

Is the AC power ON to the site and the equipment? (Check fuses and circuit breakers if necessary.) Is the input signal present?

Are all the switches in the correct operating position?

Check LCD readings for presence of forward and reflected power and 30 V DC supply levels. The above is an aid in determining the fault if some aspect of the system is not operating. The following table deals with quality of operation:

Possible Fault AC grounding / AC interference Correction Install EMI/RFI filter in AC line Symptom Horizontal bars in picture (may roll either way depending on phase) Diagonal lines in picture Interference Ensure modulator/processor and power amplifier share a common ground Install EMI/RFI filter in AC line Determine source and frequency of interfering signal

(spectrum analyzer may be required) X-2 TAV-250 Symptom Weak output or picture Possible Fault Low level input signal Low output power High reflected power Incorrect modulation depth Incorrect load correct Correction Verify presence and level of input signal Verify power amplifier output with wattmeter and dummy load Adjust to meet specification Ensure amplifier connected to transmission line Ensure impedance (50 ohms) Check antenna tuning and VSWR. Verify correct cable for transmission line length Check all cables for visible damage (kinks, nicks or cuts) Check all connectors for poor connections, water or corrosion Check alignment of antenna Check for physical damage of antenna, including ice build-up antenna X-3 TAV-250 Thank you for choosing Technalogix Ltd. TAV-250