FCC ID: N52-SDR-AF Repeater

SDR-AF User Manual Version 0.73 3116 West Vanowen St. Burbank, CA 91505 Tel: 818-840-8131 Fax: 818-840-8138 www.adrftech.com Advanced RF Technologies, Inc. i Information in this document is subject to change without notice. Advanced RF Technologies, Inc. 1996-2011. All rights reserved. Please send comments to:

E-Mail:

info@adrftech.com Phone:

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(818) 840-8131

(800) 313-9345

(818) 840-8138 Advanced RF Technologies, Inc. Attention: Technical Publications Department 3116 Vanowen St. Burbank, CA 91505 USA www.adrftech.com Advanced RF Technologies, Inc. ii Revision History Version Author Descriptions 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.72 0.73 Sun Kim Sun Kim Sun Kim Sun Kim Sun Kim Sun Kim Sun Kim cck cck Initial Release Revised max gain levels for SMR module Revised Band Selection section on the Install Page Update illustrations and changes to specifications; added Closeout Package, User Log, and Backup sections Added frequency table information Updated SDR front view illustration that shows the removal of modem module Added 700 MHz, Cellular, and AWS AWS Update Server Antenna Cable Loss Update Date January 18, 2011 May 10, 2011 July 15, 2011 July 19, 2011 September 13, 2011 September 23, 2011 December 1, 2011 March 05, 2019 March 06, 2019 Version Change list Contents Change List Advanced RF Technologies, Inc. iii Table of Contents 1. 2. Introduction ...................................................................................................................................................... 12 1.1 Highlights ................................................................................................................................................... 12 Parts List..................................................................................................................................................... 13 1.2 1.3 Repeater Quick View ................................................................................................................................. 14 1.4 Warnings and Hazards ............................................................................................................................... 15 Overview for each module ................................................................................................................................ 18 2.1 NMS ........................................................................................................................................................... 18 2.1.1 LEDs .................................................................................................................................................... 18 2.1.2 Ethernet Port and Host/Remote Switch ............................................................................................. 18 2.1.2.1 Ethernet Port ............................................................................................................................ 18 2.1.2.2 Host/Remote Switch ................................................................................................................. 18 2.1.3 DC Power Port & Debug Port. ............................................................................................................ 19 2.1.4 Communication Port & NMS Power Port ........................................................................................... 19 2.1.5 NMS Power Port & Power Outlet for Channel Card ........................................................................... 20 2.1.6 Master AC outlet ................................................................................................................................ 20 2.2 RF Module .................................................................................................................................................. 21 2.2.1 LEDs .................................................................................................................................................... 21 2.2.2 RF Ports............................................................................................................................................... 21 2.2.3 Power Switch ...................................................................................................................................... 22 2.2.4 Back Up Battery Port .......................................................................................................................... 22 2.2.5 Communication Port & Mode Select Switch ...................................................................................... 22 2.2.6 Communication Port & Mode Select Switch ...................................................................................... 23 3. 4. 5. 2.3 Channel Combiner (SDR-CHC) .................................................................................................................... 23 2.3.1 RF Ports............................................................................................................................................... 23 Alarms ............................................................................................................................................................... 24 3.1 Message Board Alarms and Notification ................................................................................................... 24 Alarms ........................................................................................................................................................ 25 3.2 Installation ........................................................................................................................................................ 26 Installation Procedures .............................................................................................................................. 26 4.1.1 Wall Mount Procedure ....................................................................................................................... 26 4.1 4.1.2 Rack Mount Procedure ....................................................................................................................... 27 4.1.3 SDR CHC Mount Procedure ................................................................................................................ 28 4.2 Grounding .................................................................................................................................................. 29 Antenna Separation/Isolation .................................................................................................................... 30 4.3 Line of Sight ............................................................................................................................................... 31 4.4 SDR Web-GUI Setup .......................................................................................................................................... 32 Repeater/PC Connection Using Web-GUI .................................................................................................. 32 Status Tab .................................................................................................................................................. 33 5.1 5.2 Advanced RF Technologies, Inc. iv 5.2.1 Status- NMS ........................................................................................................................................ 33 5.2.1.1 Navigation Bar .......................................................................................................................... 34 5.2.1.2 System Summary ...................................................................................................................... 34 5.2.1.3 Message Board ......................................................................................................................... 34 5.2.1.4 Repeater Info / Modem Info / Technical Support / Installer Contact Info ............................... 35 5.2.2 Status- SMR, PCS, BRS, Cellular, 700 MHz, AWS................................................................................. 36 5.2.2.1 Band .......................................................................................................................................... 39 5.2.2.2 Power & Gain ............................................................................................................................ 39 5.2.2.3 Alarm ........................................................................................................................................ 40 5.2.2.4 Message Board ......................................................................................................................... 40 5.2.2.5 Install, Modem, and Power Status ............................................................................................ 40 5.2.2.6 Repeater Info / Modem Info / Repeater Location / Technical Support / Installer Contact Info 41 5.3 Control Tab ................................................................................................................................................ 42 5.3.1 Control- NMS ...................................................................................................................................... 42 5.3.1.1 Control Summary ...................................................................................................................... 42 5.3.1.2 Full System ................................................................................................................................ 43 5.3.2 Control- SMR, PCS, BRS, Cellular, 700, AWS ....................................................................................... 44 5.3.2.1 General Setting ......................................................................................................................... 44 5.3.2.2 System ...................................................................................................................................... 45 5.3.2.3 Heartbeat Time ......................................................................................................................... 45 5.3.2.4 Alarm Reporting Time ............................................................................................................... 46 5.3.2.5 Manual Gain Control ................................................................................................................. 46 5.3.2.6 Alarm Setting ............................................................................................................................ 47 5.4 Install Tab ................................................................................................................................................... 48 5.4.1 Install- NMS ........................................................................................................................................ 48 5.4.1.1 Install Summary ........................................................................................................................ 49 5.4.1.2 Location .................................................................................................................................... 50 5.4.1.3 Modem Box Settings ................................................................................................................. 50 5.4.1.4 Repeater Location Info / Repeater Installer Info ...................................................................... 50 5.4.1.5 Date & Time .............................................................................................................................. 51 5.4.2 Install- SMR ......................................................................................................................................... 51 5.4.2.1 Install- SMR Band Selection ...................................................................................................... 52 5.4.2.2 Install- Frequency Table ............................................................................................................ 52 5.4.2.3 Install- SNMP ............................................................................................................................ 53 5.4.2.4 Install- Auto Installation............................................................................................................ 53 5.4.3 Install- PCS .......................................................................................................................................... 54 5.4.3.1 Install- PCS Band Selection ....................................................................................................... 54 Advanced RF Technologies, Inc. v 5.4.3.2 Install- Frequency Table ............................................................................................................ 55 5.4.3.3 Install- SNMP ............................................................................................................................ 55 5.4.3.4 Install- Auto Installation............................................................................................................ 56 5.4.4 Install- BRS .......................................................................................................................................... 57 5.4.4.1 Install- BRS Band Selection ....................................................................................................... 57 5.4.4.2 Install- Frequency Table ............................................................................................................ 58 5.4.4.3 Install- SNMP ............................................................................................................................ 59 5.4.4.4 Install- Auto Installation............................................................................................................ 59 5.4.5 Install- Cellular .................................................................................................................................... 59 5.4.5.1 Install- Cellular Band Selection ................................................................................................. 60 5.4.5.2 Install- Frequency Table ............................................................................................................ 60 5.4.5.3 Install- SNMP ............................................................................................................................ 61 5.4.5.4 Install- Auto Installation............................................................................................................ 61 5.4.6 Install- 700 MHz .................................................................................................................................. 61 5.4.6.1 Install- 700 MHz Band Selection ............................................................................................... 62 5.4.6.2 Install- Frequency Table ............................................................................................................ 62 5.4.6.3 Install- SNMP ............................................................................................................................ 63 5.4.6.4 Install- Auto Installation............................................................................................................ 63 5.4.7 Install- AWS ........................................................................................................................................ 63 5.4.7.1 Install- AWS Band Selection ...................................................................................................... 65 5.4.7.2 Install- Frequency Table ............................................................................................................ 65 5.4.7.3 Install- SNMP ............................................................................................................................ 66 5.4.7.4 Install- Auto Installation............................................................................................................ 66 5.5 System ....................................................................................................................................................... 68 5.5.1 System- Account ................................................................................................................................. 68 5.5.1.1 System: Account- Account Management ................................................................................. 68 5.5.1.2 System: Account- New Account ................................................................................................ 68 5.5.1.3 System: Account- Administrator ............................................................................................... 69 5.5.1.4 System: Account- Change Password ......................................................................................... 69 5.5.2 System- Closeout Package .................................................................................................................. 70 5.5.3 System- User Log ................................................................................................................................ 71 5.5.4 System: Update .................................................................................................................................. 71 5.5.5 System- Backup .................................................................................................................................. 72 6. 5.6 Help ............................................................................................................................................................ 72 Logout ........................................................................................................................................................ 72 5.7 Maintenance Guide for SDR Repeater .............................................................................................................. 73 Periodic Inspection Checklist ..................................................................................................................... 73 Preventive Measures for Optimal Operation ............................................................................................ 73 6.1 6.2 Advanced RF Technologies, Inc. vi 6.2.1 Recommendations .............................................................................................................................. 73 6.2.2 Precautions ......................................................................................................................................... 73 7. Warranty and Repair Policy .............................................................................................................................. 74 7.1 General Warranty ...................................................................................................................................... 74 Limitations of Warranty ............................................................................................................................. 74 7.2 7.3 Limitation of Damages ............................................................................................................................... 74 7.4 No Consequential Damages ....................................................................................................................... 74 Additional Limitation on Warranty ............................................................................................................ 74 7.5 Return Material Authorization (RMA) ....................................................................................................... 74 7.6 Specifications .................................................................................................................................................... 75 Electrical Specifications ............................................................................................................................. 75 8.1 8.2 Mechanical Specifications.......................................................................................................................... 76 Power Specifications .................................................................................................................................. 76 8.3 Environment Specifications ....................................................................................................................... 77 8.4 8.5 Warranty & Certificates ............................................................................................................................. 77 Appendix A: mechanical drawing ................................................................................................................................ 78 Appendix B: Shutdown Retry Logic .............................................................................................................................. 79 8. Figures SDR Repeater Parts List ...................................................................................................................... 13 Figure 1-1 Repeater Quick View .......................................................................................................................... 14 Figure 1-2 NMS LED ............................................................................................................................................. 18 Figure 2-1 Ethernet Port and Host/Remote Switch ............................................................................................. 18 Figure 2-2 Debug Port .......................................................................................................................................... 19 Figure 2-3 Communication Port ........................................................................................................................... 19 Figure 2-4 NMS Power Port & Power Outlet for Channel Card ........................................................................... 20 Figure 2-5 Main AC Outlet ................................................................................................................................... 20 Figure 2-6 RF Module LED .................................................................................................................................... 21 Figure 2-7 RFU RF port ......................................................................................................................................... 21 Figure 2-8 SDR Repeater Power Switch View ...................................................................................................... 22 Figure 2-9 Figure 2-10 Battery Backup Port ............................................................................................................................ 22 Figure 2-11 Master/Slave Switch ........................................................................................................................... 22 NMS Power Port & Debug Port .......................................................................................................... 23 Figure 2-12 Channel Combiner RF ports ................................................................................................................ 23 Figure 2-13 SDR Wall Mount ................................................................................................................................. 26 Figure 4-1 SDR Rack Mount ................................................................................................................................. 27 Figure 4-2 SDR CHC Mount Bracket Kit ................................................................................................................ 28 Figure 4-3 SDR CHC Front View ........................................................................................................................... 28 Figure 4-4 SDR CHC Assembly .............................................................................................................................. 28 Figure 4-5 Ground Cable Connection .................................................................................................................. 29 Figure 4-6 RF Repeater Oscillation ...................................................................................................................... 30 Figure 4-7 Direct Line of Sight to the BTS ............................................................................................................ 31 Figure 4-8 Login screen ........................................................................................................................................ 32 Figure 5-1 Status - NMS ....................................................................................................................................... 33 Figure 5-2 Navigation Bar .................................................................................................................................... 34 Figure 5-3 Advanced RF Technologies, Inc. vii System Summary ................................................................................................................................ 34 Figure 5-4 Message Board ................................................................................................................................... 34 Figure 5-5 Repeater Info / Modem Info / Technical Support / Installer Contact Info ......................................... 35 Figure 5-6 Status - SMR ........................................................................................................................................ 36 Figure 5-7 Status - PCS ......................................................................................................................................... 36 Figure 5-8 Status- BRS .......................................................................................................................................... 37 Figure 5-9 Status- Cellular .................................................................................................................................... 37 Figure 5-10 Status- 700 MHz ................................................................................................................................. 38 Figure 5-11 Status- AWS ........................................................................................................................................ 38 Figure 5-12 Band Display ....................................................................................................................................... 39 Figure 5-13 Power & Gain Display ......................................................................................................................... 39 Figure 5-14 Figure 5-15 Alarm Display ...................................................................................................................................... 40 Figure 5-16 Message Board ................................................................................................................................... 40 Install, Modem, and Power Status ...................................................................................................... 40 Figure 5-17 Repeater Info / Modem Info / Repeater Location / Technical Support / Installer Contact Info ........ 41 Figure 5-18 Control- NMS ...................................................................................................................................... 42 Figure 5-19 Control Summary ................................................................................................................................ 42 Figure 5-20 Full System .......................................................................................................................................... 43 Figure 5-21 Control- SMR, PCS, BRS, Cellular, 700, AWS ....................................................................................... 44 Figure 5-22 General Setting ................................................................................................................................... 44 Figure 5-23 System Command ............................................................................................................................... 45 Figure 5-24 Pop-up message when Reboot button is pressed .............................................................................. 45 Figure 5-25 Pop-up message when Factory Setting button is pressed .................................................................. 45 Figure 5-26 Heartbeat Setting ............................................................................................................................... 45 Figure 5-27 Figure 5-28 Alarm Reporting Time Setting ............................................................................................................ 46 Figure 5-29 Main Gain Control Setting .................................................................................................................. 46 Alarm Threshold Setting ..................................................................................................................... 47 Figure 5-30 Install NMS ....................................................................................................................................... 48 Figure 5-31 Figure 5-32 Install Summary .................................................................................................................................. 49 Location Setting .................................................................................................................................. 50 Figure 5-33 Figure 5-34 Modem Box Setting ............................................................................................................................ 50 Repeater Location Info / Repeater Installer Info ................................................................................ 50 Figure 5-35 Date & Time Setting ............................................................................................................................ 51 Figure 5-36 Install - SMR ........................................................................................................................................ 51 Figure 5-37 Install- SMR Band Selection ................................................................................................................ 52 Figure 5-38 Install- Frequency Setting ................................................................................................................... 52 Figure 5-39 Install- Frequency Table ...................................................................................................................... 53 Figure 5-40 Install - SNMP ..................................................................................................................................... 53 Figure 5-41 Install Auto Installation .................................................................................................................... 53 Figure 5-42 Install - PCS ......................................................................................................................................... 54 Figure 5-43 Install- PCS Band Selection ................................................................................................................. 54 Figure 5-44 Install Frequency Setting ................................................................................................................. 55 Figure 5-45 Install- Frequency Table ...................................................................................................................... 55 Figure 5-46 Install - SNMP ..................................................................................................................................... 56 Figure 5-47 Install Auto Installation .................................................................................................................... 56 Figure 5-48 Install - BRS ......................................................................................................................................... 57 Figure 5-49 Install- BRS Band Selection ................................................................................................................. 57 Figure 5-50 Install- Frequency Setting ................................................................................................................... 58 Figure 5-51 Install- Frequency Table ...................................................................................................................... 58 Figure 5-52 Install- SNMP ...................................................................................................................................... 59 Figure 5-53 Install- Auto Installation ..................................................................................................................... 59 Figure 5-54 Install - Cellular ................................................................................................................................... 59 Figure 5-55 Install- Cellular Band Selection ........................................................................................................... 60 Figure 5-56 Advanced RF Technologies, Inc. viii Figure 5-57 Figure 5-58 Figure 5-59 Figure 5-60 Figure 5-61 Figure 5-62 Figure 5-63 Figure 5-64 Figure 5-65 Figure 5-66 Figure 5-67 Figure 5-68 Figure 5-69 Figure 5-70 Figure 5-71 Figure 5-72 Figure 5-73 Figure 5-74 Figure 5-75 Figure 5-76 Figure 5-77 Figure 5-78 Figure 5-79 Figure 5-80 Figure 5-63 Figure 5-82 Figure 5-83 Figure 8-1 Install- Frequency Setting ................................................................................................................... 60 Install- Frequency Table ...................................................................................................................... 60 Install - SNMP ..................................................................................................................................... 61 Install Auto Installation .................................................................................................................... 61 Install 700 MHz ................................................................................................................................ 61 Install- Cellular Band Selection ........................................................................................................... 62 Install- Frequency Setting ................................................................................................................... 62 Install- Frequency Table ...................................................................................................................... 62 Install - SNMP ..................................................................................................................................... 63 Install Auto Installation .................................................................................................................... 63 Install - AWS ........................................................................................................................................ 64 Install- AWS Band Selection ................................................................................................................ 65 Install Frequency Setting ................................................................................................................. 66 Install- Frequency Table ...................................................................................................................... 66 Install - SNMP ..................................................................................................................................... 66 Install Auto Installation .................................................................................................................... 67 System: Account- Account Management ........................................................................................... 68 System: Account- New Account ......................................................................................................... 68 System: Account- Administrator ......................................................................................................... 69 System: Account- Change Password ................................................................................................... 69 System- Closeout Package .................................................................................................................. 70 System- Closeout Package after the file upload ................................................................................. 70 System User Log ............................................................................................................................... 71 System update .................................................................................................................................... 71 Pop-up message after System update is complete ............................................................................ 71 System backup .................................................................................................................................... 72 Help..................................................................................................................................................... 72 SDR Mechanical Drawing .................................................................................................................... 78 Advanced RF Technologies, Inc. ix Tables Table 1-1 Table 2-1 Table 2-2 Table 3-1 Table 3-2 Table 8-1 Table 8-2 Table 8-3 Table 8-4 Table 8-5 Parts List ............................................................................................................................................. 13 NMS LED Specifications ...................................................................................................................... 18 RF Module LED Specifications ............................................................................................................. 21 Message Board Alarms and Notification ............................................................................................ 24 Alarms Threshold ................................................................................................................................ 25 Electrical Specifications ...................................................................................................................... 75 Mechanical Specifications .................................................................................................................. 76 Power Specifications ........................................................................................................................... 76 Environment Specifications ................................................................................................................ 77 Warranty & Certificates ...................................................................................................................... 77 Advanced RF Technologies, Inc. x Terms and Abbreviations The following is a list of abbreviations and terms used throughout this document. Abbreviation/Term Definition AGC ALC AROMS BTS CDMA CFE CW DAS DL Downlink HPA HW IF LNA LTE MS PLL PS RF SQE SW UL Uplink VSWR Automatic Gain Control Automatic Level Control ADRF Repeater Operation and Management System Base Transceiver Station Code Division Multiple Access Compact Front End Continuous Wave (un-modulated signal) Distributed Antenna System Downlink The path covered from the Base Transceiver Station (BTS) to the subscribers service area via the repeater High Power Amplifier Hardware Intermediate Frequency Low Noise Amplifier Long Term Evolution Mobile Station Phased Locked Loop Power Supply Radio Frequency Signal Quality Estimate Software Uplink The path covered from the subscribers service area to the Base Transceiver Station (BTS) via the repeater Voltage Standing Wave Ratio Advanced RF Technologies, Inc. 11 1. INTRODUCTION Up to four technologies in one body: SDR is an over-the-air repeater system that can incorporate up to four (4) technologies in one body. Current supported technologies are SMR800, SMR900, PCS, BRS, Cellular, 700MHz, and AWS. 1.1 Highlights Supports up to 4 frequency bands simultaneously

Available modules include:

700 MHz- Covers any combination of Lower A, Lower B, and Upper C AWS- Covers 70 MHz 3 independent RF channels, each channel supports 1.25 to 18.75 MHz bandwidth BRS- Covers 188 MHz, Instantaneous Bandwidth 30MHz Cellular- Covers the 25 MHz band PCS- Covers 65 MHz SMR800 (18 MHz) / SMR900 (5 MHz) 3 independent RF channels, each channel supports 1.25 to 18.75 MHz bandwidth Composite Output Power of 24 or 30,33 dBm 30 dB AGC Range @ 0.5 dB Step for SMR 40 dB AGC Range @ 0.5dB Step for 700MHz, AWS, BRS, Cellular, and PCS Adjustable AGC Output Power Level Adjustable ALC Level Band Selectable via Web-GUI Can Support up to 3 Non-Contiguous Bands on the PCS and AWS modules Supports Network Management Monitoring System via SNMP Digital filtering Incremental Automatic Shutdown/Resumption Time: SDR gradually increases the time span between automatic shutdown and resumption before it permanently shuts itself down Versatility and Usability: SDR gives total control to the user. Most of the control parameters, e.g., gain, output power, alarm threshold, etc. can be changed using the Web-GUI so that the user can adjust the system perfectly to the given RF environment Web-GUI connectivity via DHCP Supports DHCP; No 3rd party GUI software required Automated installation Adjustable center frequencies by 1KHz step Advanced RF Technologies, Inc. 12 1.2 Parts List J A Table 1-1 Parts List Label Quantity Description SDR-NMS A B C D E F G SDR-Modules J K SDR-CHC L M N O 1 1 1 1 6 1 1 SDR Network Management System (NMS) AC Power Cable Ethernet Cable (Crossover) NMS Power Cable Anchor Bolt Ground Cable Documentation CD**

Up to 4*

Up to 4*

Optional SDR Modules*

Module Data Cable 1 6 or 8 1 1 SDR-CHC RF Jumper Cables 50 Ohm Terminator (placed on Server Wifi port) Chassis Mounting Kit SDR-AF D G K B E C F Figure 1 SDR Repeater Parts List

* At least 1 module must be present in order to use SDR

** CD includes: User Manual, Quick-Start Guide, and Troubleshooting Guide Advanced RF Technologies, Inc. 13 M L N O 1.3 Repeater Quick View LED indicator Host / Remote Switch

& RJ-45 port NMS Power Switch NMS Input Power Port NMS Communication Hub DC Out for external modem box Figure 2 Repeater Quick View Advanced RF Technologies, Inc. 14 SDR-AF 19 rackmount holes NMS Output Power Port RJ-45 Module Communication Port Battery Backup Port AC Select Switch Module power switch & AC IN Master AC IN 1.4 Warnings and Hazards Working with the repeater while in operation, may expose the technician to RF electromagnetic fields that exceed FCC rules for human exposure. Visit the FCC website at www.fcc.gov/oet/rfsafety to learn more about the effects of exposure to RF electromagnetic fields.

# UL Max. gain : -4.9 dBi (Including Cable loss, Panel Antenna), DL Max. gain : 3 dBi (OMNI Antenna) Advanced RF Technologies, Inc. 15 WARRANTY Opening or tampering the SDR will void all warranties. Home/ personal use are prohibited Opening or tampering the SDR will void all warranties. FCC Part 15 Class A NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense. FCC Part 20 WARNING. THIS is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. Advanced RF Technologies, Inc. 16

<IC Warning statement>

RSS-GEN, Sec. 7.1.2 (transmitters) RSS-GEN (6.8 Transmit antenna) Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. 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.

# UL Max. gain : -4.9 dBi (Including Cable loss, Panel Antenna), DL Max. gain : 3 dBi (OMNI Antenna) Conformment la rglementation dIndustrie Canada, le prsent metteur radio peut fonctionneravec une antenne dun type et dun gain maximal (ou infrieur) approuv pour lmetteur par Industrie Canada. Dans le but de rduire les risques de brouillage radiolectrique lintention desautres utilisateurs, il faut choisir le type dantenne et son gain de sorte que la puissance isotroperayonne quivalente (p.i.r.e.) ne dpassepas lintensit ncessaire ltablissement dune communication satisfaisante.

# UL Max. gain : -4.9 dBi (Including Cable loss, Panel Antenna), DL Max. gain : 3 dBi (OMNI Antenna) RF Radiation Exposure This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 30 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. RF exposure will be addressed at time of installation and the use of higher gain antennas may require larger separation distances. RSS-102 RF Exposure Lantenne (ou les antennes) doit tre installe de faon maintenir tout instant une distance minimum de au moins 30 cm entre la source de radiation (lantenne) et toute personne physique. Cet appareil ne doit pas tre install ou utilis en conjonction avec une autre antenne ou metteur. Advanced RF Technologies, Inc. 17 2. OVERVIEW FOR EACH MODULE 2.1 NMS 2.1.1 LEDs SDR has LEDs on the front of the NMS as shown below in Figure 3. Figure 3 NMS LED Table 2-1 NMS LED Specifications SDR-NMS Specifications Power CH-1, CH-2, CH-3, CH-4 Solid Green OFF Solid Green Solid Red OFF NMS power is ON NMS is powered OFF Module has communication with NMS Module has a communication failure with NMS Module is powered OFF 2.1.2 Ethernet Port and Host/Remote Switch 2.1.2.1 Ethernet Port The Ethernet port can be used to communicate directly with the SDR using a RJ-45 crossover cable or can also be used to connect the SDR to an external modem box. 2.1.2.2 Host/Remote Switch The Host/Remote Switch allows the user to switch the default Repeater IP, Subnet Mask, and Gateway of the repeater to an alternative setup. These settings can be adjusted by logging into the repeater in HOST mode and configuring the settings under the Modem Box Setting section on the Install Page (section 5.4.1.3). Once the settings are set, flipping the switch to the REMOTE position will reboot the repeater with the new alternate settings. Please note that when the repeater is set to the REMOTE position, DHCP is disabled and the repeater will not automatically assign an IP address to any device that connects directly to the repeater. Figure 4 Ethernet Port and Host/Remote Switch Host IP: 192.168.63.1 (Fixed IP, unable to modify this IP address) Remote IP: 192.168.63.5 (Default IP, but can be modified in Host mode) Advanced RF Technologies, Inc. 18 2.1.3 DC Power Port & Debug Port. DC Power Port- The DC Power Port can be used to provide power to the optional External Modem Box (ADRF OmniBox, SymBox) Debug Port- The debug port is used for ADRF testing purposes only. 2.1.4 Communication Port & NMS Power Port Figure 5 Debug Port Communication Port- These RJ-45 ports are used to connect the SDR-NMS to the SDR modules using the included RJ-45 cables. Note: Each module must be plugged into the corresponding port number on the SDR-NMS in order for the NMS to properly detect the modules. Figure 6 Communication Port Advanced RF Technologies, Inc. 19 2.1.5 NMS Power Port & Power Outlet for Channel Card NMS-PWN-IN (NMS power input)- The NRS-PWN-IN port is used to power the SDR-NMS. The 2-pin cable connects to the any one of NMS-PWR-OUT ports on the SDR modules. The NMS power can be used to power on/off the SDR-NMS. Power for RF Module- Connect the AC power cables to the SDR modules Figure 7 NMS Power Port & Power Outlet for Channel Card 2.1.6 Master AC outlet Connect the Master AC In from the chassis to an AC Outlet. Figure 8 Main AC Outlet The socket-outlet shall be installed near the equipment and shall be easily accessible. This power of this system shall be supplied through wiring installed in a normal building. If powered directly from the mains distribution system, it shall be used additional protection, such as overvoltage protection device. Advanced RF Technologies, Inc. 20 2.2 RF Module 2.2.1 LEDs SDR has LEDs on the front of the RF module as shown below in Figure 9. Figure 9 RF Module LED Power Soft Fail Hard Fail RSSI Table 2-2 RF Module LED Specifications SDR-Module Specifications Solid Green OFF Solid Yellow OFF Solid Red OFF Input < -85dBm Input < -75dBm Input < -65dBm Input < -55dBm Input < -45dBm Input >= -45dBm Module power is ON Module is powered OFF Soft Fail alarm exist in the system No Soft Fail alarm are present in the system Hard Fail alarm exist in the system No Hard Fail alarms are present in the system Zero (0) bar On One (1) bar On Two (2) bars On Three (3) bars On Four (4) bars On Five (5) bars On 2.2.2 RF Ports Donor and server antennas can be connected directly to the modules or the optional SDR-CHC (channel combiner) can be used to split or combine signals. Figure 10 RFU RF port Advanced RF Technologies, Inc. 21 2.2.3 Power Switch The AC Power on/off switch is located at the back of each individual module. Each module must be powered on separated. The switch should be powered on after the repeater has been installed properly. 2.2.4 Back Up Battery Port Figure 11 SDR Repeater Power Switch View Figure 12 Battery Backup Port The SDR module can be connected to an ADRF-BBU (ADRF Battery Backup) to provide power during a power failure. If an ADRF-BBU is utilized, connect the ADRF-BBU to the SDR via the external battery port as shown in Figure 4.

(WARNING: The circuit switch on the ADRF-BBU must be set to OFF before connecting the ADRF-BBU to the SDR to prevent damage to the repeater or the ADRF-BBU and personal injury.) Note: Please contact ADRF Technical Support for assistance if you are unfamiliar with the installation procedure of our battery box. 2.2.5 Communication Port & Mode Select Switch Communication Port- This port is used to communicate with the SDR-NMS. Connect the RJ-45 data cables that are included with the SDR modules to the NMS communication port. Master/Slave switch- The Master/Slave switch must be set to the slave position when the SDR modules are connected to a SDR-NMS. The Master/Save switch should only be set to the Master when troubleshooting the repeater with ADRF Technical Support. 2.2.6 AC Select Switch Figure 13 Master/Slave Switch The AC select switch will let the user switch between 115V and 230V. Figure 14 AC Select Switch Advanced RF Technologies, Inc. 22 2.2.7 Communication Port & Mode Select Switch NMS-PWR-OUT- This port is used to power the SDR-NMS. If multiple modules are being used in a system, the SDR-NMS only requires power from only 1 module. This port will connect to the NMS-PWN-IN on the SDR-NMS. Debug Port- The debug port is used for ADRF testing purposes only. Figure 15 NMS Power Port & Debug Port 2.3 Channel Combiner (SDR-CHC) 2.3.1 RF Ports An optional channel combiner can be mounted directly above the SDR. There are 2 versions of the SDR-CHC. The SDR-CHC-V supports Cellular, AWS, PCS, and 700MHz. The SDR-CHC-S supports PCS, BRS, and SMR. The donor portion of the SDR-CHC can be used to split up a combine donor signal. The server portion of the SDR-CHC can be used to combine the server signals into the Server Sum port. Please contact sales@adrftech.com if you are interested in purchasing the SDR-CHC. Figure 16 Channel Combiner RF ports Port Name Description

Donor PCS: Connects to the SDR PCS donor port Donor Cell: Connects to the SDR Cell donor port Donor AWS: Connects to the SDR AWS donor port Donor 700: Connected to the SDR 700 MHz donor port Donor BRS: Connects to the SDR BRS donor port Donor Sum: Connects to the combined donor line Donor SMR: Connects to the SDR SMR donor port Donor Sum CPL: Expansion donor port with 18 dB 3 coupling value [Connects to an external modem box]

Server Sum 2: Expansion server port with 20 dB coupling value Server PCS: Connects to the SDR PCS server port Server Cell: Connects to the SDR Cell server port Server AWS: Connects to the SDR AWS server port Server 700: Connects to the 700 MHz server port Server BRS: Connects to the BRSPCS server port Server WiFi: Input port for Wifi AP Server Sum: Connects to the server antennas Server SMR: Connects to the SDR SMR server port Advanced RF Technologies, Inc. 23 3. ALARMS 3.1 Message Board Alarms and Notification Table 3-1 Message Board Alarms and Notification Parameters Remark AC Fail DC Fail Fan Fail Temperature Current System Halt DSP Fault Link Fail BRS Out of Sync OSC DL Signal not detected DL Signal Low Input Overload Out of band Overload Synthesizer Lock Fail DL RF Power Overpower VSWR Heartbeat Reboot Factory setting Power supply is not operating within specs Power supply is not operating within specs System has detected an issue with the fan Module is above the normal operating temperature Power supply is not operating within specs System is in a shutdown state due to a hard fail alarm System has detected an issue with the internal DSP chip Communication error between the module and NMS Unable to perform TDD sync Oscillation detected DL signal is below the specified level DL signal is below the specified level Incoming in-band DL or UL signal is too strong Incoming out-band DL or UL signal is too strong Issue with internal PLL Input + gain does not match the output level (above delta of 6 dB) Output level is above the max output levels Power is being reflected back to the repeater Heartbeat Reboot Factory setting Advanced RF Technologies, Inc. 24 3.2 Alarms Table 3-2 Alarms Threshold Parameters Remark AC Fail DC Fail Fan Fail Temperature Current System Halt DSP Fault Link Fail BRS Out of Sync OSC DL Signal not detected DL Signal Low Input Overload Out of band Overload Synthesizer Lock Fail DL RF Power Overpower VSWR Power supply is not operating within specs. (4 seconds) Power supply is not operating within specs. (4 seconds) System has detected an issue with the fan. (4 seconds) Module is above the normal operating temperature. (4 seconds) Over Temperature [ Soft: 80~87 C, Hard: Above 87 C]

Power supply is not operating within specs. (4 Second) Over Current [ Hard: Above 10A]

System is in a shutdown state due to a hard fail alarm. (10 times) System has detected an issue with the internal DSP chip. (Cannot communication with DSP) Communication error between the module and NMS. (5 mins) Unable to perform TDD sync (10 seconds) Oscillation detected. Alarm is only present when one-time oscillation check is performed (4 seconds) DL signal is below the specified level. (default: -85dBm) DL signal is below the specified level. (default: -90dBm) Input signal is above the threshold.

(Soft: -17dBm, Hard: -15dBm) Out of band signal is above the threshold.

(Soft: -17dBm, Hard: -15dBm) Issue with internal PLL Input + gain does not match the output level

(default delta of 6 dB) Output level is above the max output levels

(Soft: ALC or AGC + 1~2dB, Hard: ALC or AGC + >2dB) Power is being reflected back to the repeater. Threshold = output power - 8dB. For example, if the repeater is outputting 24dBm, then if the system detects 16dBm of return power, then the VSWR will be triggered. Advanced RF Technologies, Inc. 25 4. INSTALLATION 4.1 Installation Procedures 4.1.1 Wall Mount Procedure Verify that the SDR and mounting hole are in good condition Remove all SDR modules from the system Place the SDR chassis up against the wall so that that modules RF ports face the ceiling Mount the SDR chassis to wall use the six (6) mounting hold on the wall mount bracket Install the SDR modules into the chassis and secure the module by tightening the four (4) hand screws Connect the power and data cables at the bottom on the SDR Connect the GND cable Connect the Antenna cable Connect the Power cable Wall Mount Bracket Figure 17 SDR Wall Mount Advanced RF Technologies, Inc. 26 4.1.2 Rack Mount Procedure Verify that the SDR and mounting hole are in good condition Remove all SDR modules from the system Remove all SDR wall mount bracket from the system Install the SDR chassis into the 19 rack mount system Screw the SDR chassis into the 19 rack mount system using the eight (8) mounting holes Install the SDR modules into the chassis and secure the module by tightening the four (4) hand screws Connect the power and data cables at the back of the SDR Connect the GND cable Connect the Antenna cable Connect the Power cable SDR-AF Figure 18 SDR Rack Mount Advanced RF Technologies, Inc. 27 4.1.3 SDR CHC Mount Procedure The SDR-CHC ships with a chassis mounting kit. The SDR-CHC can be directly mounted to the chassis using the chassis mounting kit. This kit is only needed when wall-mounting the SDR. Figure 19 SDR CHC Mount Bracket Kit Figure 20 SDR CHC Front View The SDR-CHC is to be placed on top the chassis. The mounting brackets should be installed in the position shown below in grey. Secure the mounting brackets in place with the screws.

Figure 21 SDR CHC Assembly Advanced RF Technologies, Inc. 28 4.2 Grounding Install the ground cable that is included in the package at the back of the repeater as show in the figure below. Figure 22 Ground Cable Connection Round terminals located on the side of a 0.75 mm2 (18 AWG) or more wires Using permanently connected to earth. Advanced RF Technologies, Inc. 29 4.3 Antenna Separation/Isolation/ Installation Separation between the antennas is necessary to prevent oscillation. Oscillation occurs when the signal entering the system continually reenters, due to the lack of separation between the donor and server antennas. In other words, the signal is being fed back into the system. This creates a constant amplification of the same signal. As a result, the noise level rises above the signal level. The Donor antenna cable must be used with 24 dB Loss. SDR-AF Figure 23 RF Repeater Oscillation To prevent feedback, the donor and server antennas must be separated by an appropriate distance to provide sufficient isolation. Isolation is attained by separating antennas a sufficient distance so that the output of one antenna does not reach the input of the other. This distance is dependent on the gain of the repeater. A sufficient isolation value is 13 ~ 15 dB greater than the maximum gain of the repeater. For example, if the gain of the repeater is 50 dB, then an isolation of 63 ~ 65 dB or greater is required. In the same manner, because the SDR has a maximum gain of 95dB in case of SDR-AF, it requires an isolation of at least 108 ~ 110dB. Advanced RF Technologies, Inc. 30 REPEATER 4.4 Line of Sight The donor antenna which points towards the base station typically has a narrow beam antenna pattern. As a result, a slight deviation away from the direction of the BTS can lead to less than optimum results. In addition, obstacles between the repeater and the BTS may impair the repeater from obtaining any BTS signal. As a result, the repeater cannot transmit signal to the coverage area. Therefore, a direct line of sight to the BTS for the donor antenna is vital to the function of a repeater. For the same reason, placing the server antenna in direct line of sight of the coverage area is also necessary. Figure 24 Direct Line of Sight to the BTS Advanced RF Technologies, Inc. 31 5. SDR WEB-GUI SETUP The Web-GUI allows the user to communicate with the repeater either locally or remotely. To connect to the repeater locally, you will need a laptop with an Ethernet port and a RJ-45 crossover cable. To connect to the repeater remotely, you will need to have an active internet connection and the repeater must have either an internal modem or an Omnibox (ADRF Modem Box) connected to the repeater. 5.1 Repeater/PC Connection Using Web-GUI If you are connecting to the unit remotely (use of a modem), then skip steps A and B. Verify that your Local Area Connection is set to Obtain an IP address automatically under the Internet Protocol

(TCP/IP) properties

Connect the RJ-45 crossover cable between the laptops Ethernet port and the repeaters Ethernet port Launch an Internet Browser Type the following IP address into the address bar of Microsoft Internet Explorer: http://192.168.63.1

The following login screen will appear:

If you are connecting to the unit remotely, then type the IP address of the modem to connect to the unit Figure 25 Login screen If you are not the Administrator, please type in your assigned username & password which you should have received from the Administrator. The default username and password for the General User is adrf & adrf, respectively. The default Administrator login is admin & admin, respectively. Advanced RF Technologies, Inc. 32 5.2 Status Tab 5.2.1 Status- NMS The NMS Status page provides an overview of how the system is performing. From the NMS Status page, the user can see if there are any alarms present on any of the modules. Figure 26 Status - NMS Advanced RF Technologies, Inc. 33 5.2.1.1 Navigation Bar The navigation bar located on the left hand side of the Web-GUI allows the user to switch between the various Figure 27 Navigation Bar modules that are connected to the system. 5.2.1.2 System Summary Figure 28 System Summary The system summary provides a snapshot of how the system is currently performing. Connected Device- Displays what modules are connected to the SDR-NMS. Clicking on the buttons in the column will take you to the Status page of that module. Alarm- Displays the current alarm status of the individual modules Install Status- Displays the installation status of the module 5.2.1.3 Message Board Displays the system events of all connected modules. Figure 29 Message Board Advanced RF Technologies, Inc. 34 5.2.1.4 Repeater Info / Modem Info / Technical Support / Installer Contact Info Figure 30 Repeater Info / Modem Info / Technical Support / Installer Contact Info Repeater Info- Displays the serial number, latitude, longitude, and firmware version of the repeater Modem Info- If an internal modem is present, the modem information appears in this section Technical Support- Displays ADRFs Technical Support contact information Installer Contact Info- Displays the contact information of the installer Advanced RF Technologies, Inc. 35 5.2.2 Status- SMR, PCS, BRS, Cellular, 700 MHz, AWS Figure 31 Status - SMR Figure 32 Status - PCS Advanced RF Technologies, Inc. 36 Figure 33 Status- BRS Figure 34 Status- Cellular Advanced RF Technologies, Inc. 37 Figure 35 Status- 700 MHz Figure 36 Status- AWS Advanced RF Technologies, Inc. 38 5.2.2.1 Band This section displays the spectrum and technology that is being used. The band column displays the bandwidth or band that has been selected. The downlink column displays the center frequency of the selected band. The uplink column displays the center frequency of the selected band. 5.2.2.2 Power & Gain This section displays the Input, Gain, and Output for both downlink and uplink. Figure 37 Band Display Figure 38 Power & Gain Display Input [dBm] Displays the incoming Downlink/Uplink signal level. The system will display --.- when the input level is < -90 dBm. Gain [dB] Displays the amount of gain that is currently be used. Output [dB] Diplays the Downlink/Uplink output power levels. The system will display --.- when the input level is < -10 dBm. Advanced RF Technologies, Inc. 39 5.2.2.3 Alarm This section displays the alarm status for System alarms, RF alarms, and Power alarms. If an alarm is present in the system, then the color of the alarm tab will change according to the type of failure. 5.2.2.4 Message Board Displays the 20 most recent events. Figure 39 Alarm Display Figure 40 Message Board Clear: Clears the content that is currently being displayed on the Message Board Log File: Downloads the system Log File (events and alarms) to your computer 5.2.2.5 Install, Modem, and Power Status Figure 41 Install, Modem, and Power Status Installation: Displays whether or not the installation routine has been run (Not Installed or Installed) Modem: Displays the status of the modem

- Disabled- No internal modem is present

- Not Connected- Internal modem is detected, but no connection to the network has been established

Connected- Internal modem is detected and a connection to the network has been established Power: Displays the power source that is currently being used Advanced RF Technologies, Inc. 40 5.2.2.6 Repeater Info / Modem Info / Repeater Location / Technical Support / Installer Contact Info Figure 42 Repeater Info / Modem Info / Repeater Location / Technical Support / Installer Contact Info Repeater Info: Displays the serial number, latitude, longitude, firmware version, Web-GUI version Modem Info: Displays the internal modem information (ESN, MDN, IP) Repeater Location: Displays the address where the repeater is installed Technical Support: Displays ADRFs Technical Support contact information Installer Contact Info: Displays the installers name, phone and e-mail address Note: Once successfully logged in, the repeater model name and the site/cascade ID will be displayed on the top of all the windows (except for the Main Window). Advanced RF Technologies, Inc. 41 5.3 Control Tab 5.3.1 Control- NMS 5.3.1.1 Control Summary Figure 43 Control- NMS This section allows the user to perform factory settings and reboot one module at a time. Figure 44 Control Summary Advanced RF Technologies, Inc. 42 5.3.1.2 Full System This section allows the user to perform a full system reboot or full system factory settings. Figure 45 Full System Advanced RF Technologies, Inc. 43 5.3.2 Control- SMR, PCS, BRS, Cellular, 700, AWS 5.3.2.1 General Setting Figure 46 Control- SMR, PCS, BRS, Cellular, 700, AWS Figure 47 General Setting AGC ON: Enables or disables AGC (Automatic Gain Control) Downlink HPA ON: Enables or disables the DL HPA (High Power Amplifier) Uplink HPA ON: Enables or disabled the UL HPA (High Power Amplifier) To enable any of the settings, click on the checkbox and click the Apply button. Advanced RF Technologies, Inc. 44 5.3.2.2 System Reboot: Clicking the reboot button will have the following popup show up:

Figure 48 System Command Figure 49 Pop-up message when Reboot button is pressed Click OK to reboot the repeater or click Cancel to exit out Factory Setting: Resets the repeater to the original factory settings Figure 50 Pop-up message when Factory Setting button is pressed 5.3.2.3 Heartbeat Time Allows the user to enable or disable heartbeats from being sent out and also specify the time interval. Figure 51 Heartbeat Setting Advanced RF Technologies, Inc. 45 5.3.2.4 Alarm Reporting Time Figure 52 Alarm Reporting Time Setting This section allows the user to specify the reporting time of the following alarms; Over Current, Over Temperature, VSWR, RSSI at Donor, and RF Power. If the alarm is set to 5 mins, then the system will send out a SNMP trap only if the alarm is continually present for a 5 minute period. If the alarm clears within this 5 minute period, then the SNMP trap will not be sent out. When the alarm reporting time is set to 0 min, the SNMP trap will be set out immediately once the alarm is triggered. The alarm should be set to 0 min, only when testing the monitoring function. Otherwise, all alarms should be set to 5 mins for normal operation. 5.3.2.5 Manual Gain Control Figure 53 Main Gain Control Setting Downlink Gain: Allows the DL gain to be adjusted manually when AGC is OFF Uplink Gain: Allows the UL gain to be adjusted manually when AGC is OFF Downlink AGC Level: Allows the user to set the DL output power level when AGC is enabled o The system will automatically adjust the gain levels to output the specified AGC level Uplink AGC Level: Allows the user to set the UL output power level when AGC is enabled o The system will automatically adjust the gain levels to output the specified AGC level DL Output ALC Level: Allows the user to set the Max output level when AGC is OFF DL Output ALC Offset: The delta value at which the BDA will increase/decrease the gain levels to compensate for the decrease/increase in signal level DL /UL Gain Balance ON: When enabled, the system will keep the delta value between the Downlink and Uplink gain levels Advanced RF Technologies, Inc. 46 5.3.2.6 Alarm Setting Figure 54 Alarm Threshold Setting Downlink Signal Low: Allows the user to specify how low the signal can be before triggering a Downlink Signal Low soft-fail alarm Downlink Signal Not Detected: Allows the user to specify how low the signal can be before triggering a Downlink Signal Not Detected soft-fail alarm Downlink RF Power: Allows the user to set a maximum deviation value for the downlink RF power

For example, if the input signal is -50 dBm and the gain is set to 60 dB, the expected output power should be 10 dBm. If the Downlink RF Power alarm value is set to 6dB, then if the output power is below 4 dBm, then this will trigger a soft-fail alarm VSWR Alarm ON: Allows the user to enable/disable the VSWR alarm check Advanced RF Technologies, Inc. 47 5.4 Install Tab 5.4.1 Install- NMS Figure 55 Install NMS Advanced RF Technologies, Inc. 48 5.4.1.1 Install Summary The auto installation routine can be run from this page by clicking on the Install button under the Auto Installation column. This section also displays the Manager IP and Site ID for all the connected SDR modules. Figure 56 Install Summary Advanced RF Technologies, Inc. 49 5.4.1.2 Location This section allows the user to input the latitude and the longitude of the repeater. 5.4.1.3 Modem Box Settings Figure 57 Location Setting This section allows the user to specify an alternative Repeater IP, Subnet Mask, and Gateway settings. These settings are enabled when the Host/Remote switch is set to the Remote position. When the Host/Remote switch is changed, the repeater will reboot and will result in a temporary loss in coverage. 5.4.1.4 Repeater Location Info / Repeater Installer Info Figure 58 Modem Box Setting This section allows the user to specify the address of the repeater and also the information of the installer. Figure 59 Repeater Location Info / Repeater Installer Info Advanced RF Technologies, Inc. 50 5.4.1.5 Date & Time This section allows the user to specify the current date and time. 5.4.2 Install- SMR Figure 60 Date & Time Setting Figure 61 Install - SMR The SMR Install page allows the user specify the desired frequncies by inputting the Reference Frequency and Bandwidth. The SMR module supports 1 channel on the SMR800 and 1 channel on the SMR900. SMR800 bandwidth selections range from 1.25 to 18 MHz and SMR900 bandwidth selections range from 1.25 to 5 MHz. The Web-GUI requires you to select the exact pass-bands that you will be using and exclude the guard bands when making your band selections. Advanced RF Technologies, Inc. 51 5.4.2.1 Install- SMR Band Selection Figure 62 Install- SMR Band Selection To specify a frequency, input a DL reference frequency and select either start, center, or stop from the dropdown menu. Select the desired bandwidth from the dropdown menu under the Bandwidth column and then click Set. Start Frequency If a start frequency is specifed, then this will be the beginning frequency of the band selection. Adding the bandwidth value that is selected from the Bandwidth column will give you the end frequency of your band selection. Center Frequency Once a center frequncy is specified and a bandwidth is selected, the system will split the bandwidth value in half and then add this to the center frequency to obtain your end frequency and also subtract this value to obtain your start frequency. Stop Frequency If a stop frequency is specified, then this will be the ending frequency of the band selection. Subtracting the bandwidth value that is selected from the Bandwidth column will give you the start frequency of your band selection. 5.4.2.2 Install- Frequency Table By clicking on the Frequency Table button, the following screen will appear. You can use the frequency table as a reference to set the desired bands. Clicking on the Back button will take you back to the previous page. Figure 63 Install- Frequency Setting Advanced RF Technologies, Inc. 52 5.4.2.3 Install- SNMP Figure 64 Install- Frequency Table Figure 65 Install - SNMP The SNMP section allows you to specify the Site ID and Manager IP. The Site-ID is the code that is used to identify a particular module. The Manager IP field is where the user inputs the IP address of the NOC system that is being used to monitor the SNMP traps. 5.4.2.4 Install- Auto Installation The Auto Installation routine can be run by clicking on the Install button. The Auto Installation routine runs basic system checks to ensure proper functionality. Figure 66 Install Auto Installation Advanced RF Technologies, Inc. 53 5.4.3 Install- PCS Figure 67 Install - PCS The PCS Install page allows the user specify the desired frequncies by inputting the Reference Frequency and Bandwidth. The PCS module supports up to 3 non-contiguous bands. Bandwidth selection ranges from 1.25 to 18.75 MHz. The Web-GUI requires you to select the exact pass-bands that you will be using and exclude the guard bands when making your band selections. 5.4.3.1 Install- PCS Band Selection To specify a frequency, input a DL reference frequency and select either start, center, or stop from the dropdown menu. Select the desired bandwidth from the dropdown menu under the Bandwidth column and then click Set. Figure 68 Install- PCS Band Selection Advanced RF Technologies, Inc. 54 Start Frequency If a start frequency is specifed, then this will be the beginning frequency of the band selection. Adding the bandwidth value that is selected from the Bandwidth column will give you the end frequency of your band selection. Center Frequency Once a center frequncy is specified and a bandwidth is selected, the system will split the bandwidth value in half and then add this to the center frequency to obtain your end frequency and also subtract this value to obtain your start frequency. Stop Frequency If a stop frequency is specified, then this will be the ending frequency of the band selection. Subtracting the bandwidth value that is selected from the Bandwidth column will give you the start frequency of your band selection. 5.4.3.2 Install- Frequency Table By clicking on the Frequency Table button, the following screen will appear. You can use the frequency table as a reference to set the desired bands. Clicking on the Back button will take you back to the previous page. Figure 69 Install Frequency Setting 5.4.3.3 Install- SNMP Figure 70 Install- Frequency Table Advanced RF Technologies, Inc. 55 Figure 71 Install - SNMP The SNMP section allows you to specify the Site ID and Manager IP. The Site-ID is the code that is used to identify a particular module. The Manager IP field is where the user inputs the IP address of the NOC system that is being used to monitor the SNMP traps. 5.4.3.4 Install- Auto Installation The Auto Installation routine can be run by clicking on the Install button. The Auto Installation routine runs basic system checks to ensure proper functionality. Figure 72 Install Auto Installation Advanced RF Technologies, Inc. 56 5.4.4 Install- BRS Figure 73 Install - BRS The BRS Install page allows the user to specify the desired frequncies by inputting the Reference Frequency and Bandwidth. The BRS module supports 1 contiguous bands. Bandwidth selection ranges from 2.5 to 30 MHz. The Web-GUI requires you to select the exact pass-bands that you will be using and exclude the guard bands when making your band selections. 5.4.4.1 Install- BRS Band Selection Figure 74 Install- BRS Band Selection To specify a frequency, input a DL reference frequency and select either start, center, or stop from the dropdown menu. Select the desired bandwidth from the dropdown menu under the Bandwidth column and then click Set. Start Frequency If a start frequency is specifed, then this will be the beginning frequency of the band selection. Adding the bandwidth value that is selected from the Bandwidth column will give you the end frequency of your band selection. Advanced RF Technologies, Inc. 57 Center Frequency:

Once a center frequncy is specified and a bandwidth is selected, the system will split the bandwidth value in half and then add this to the center frequency to obtain your end frequency and also subtract this value to obtain your start frequency. Stop Frequency:

If a stop frequency is specified, then this will be the ending frequency of the band selection. Subtracting the bandwidth value that is selected from the Bandwidth column will give you the start frequency of your band selection. 5.4.4.2 Install- Frequency Table By clicking on the Frequency Table button, the following screen will appear. You can use the frequency table as a reference to set the desired bands. Clicking on the Back button will take you back to the previous page. Figure 75 Install- Frequency Setting Figure 76 Install- Frequency Table Advanced RF Technologies, Inc. 58 5.4.4.3 Install- SNMP Figure 77 Install- SNMP The SNMP section allows you to specify the Site ID and Manager IP. The Site-ID is the code that is used to identify a particular module. The Manager IP field is where the user inputs the IP address of the NOC system that is being used to monitor the SNMP traps. 5.4.4.4 Install- Auto Installation The Auto Installation routine can be run by clicking on the Install button. The Auto Installation routine runs Figure 78 Install- Auto Installation basic system checks for propery functionaility. 5.4.5 Install- Cellular The Cellular Install page allows the user specify the desired frequncies by clicking on the preset Cellular band. Preset choices include A1+A2+B1+B2, A1, B1, A1+A2, and B1+B2. Figure 79 Install - Cellular Advanced RF Technologies, Inc. 59 5.4.5.1 Install- Cellular Band Selection The selected preset bands will be highlighted in orange. Figure 80 Install- Cellular Band Selection 5.4.5.2 Install- Frequency Table By clicking on the Frequency Table button, the following screen will appear. You can use the frequency table as a reference to set the desired bands. Clicking on the Back button will take you back to the previous page. Figure 81 Install- Frequency Setting Figure 82 Install- Frequency Table Advanced RF Technologies, Inc. 60 5.4.5.3 Install- SNMP Figure 83 Install - SNMP The SNMP section allows you to specify the Site ID and Manager IP. The Site-ID is the code that is used to identify a particular module. The Manager IP field is where the user inputs the IP address of the NOC system that is being used to monitor the SNMP traps. 5.4.5.4 Install- Auto Installation The Auto Installation routine can be run by clicking on the Install button. The Auto Installation routine runs basic system checks to ensure proper functionality. Figure 84 Install Auto Installation 5.4.6 Install- 700 MHz The 700 MHz Install page allows the user specify the desired frequncies by clicking on the preset 700 MHz band. Available choices include any combination of Lower A, Lower B, and Upper C. Figure 85 Install 700 MHz Advanced RF Technologies, Inc. 61 5.4.6.1 Install- 700 MHz Band Selection The selected preset bands will be highlighted in orange. Figure 86 Install- Cellular Band Selection 5.4.6.2 Install- Frequency Table By clicking on the Frequency Table button, the following screen will appear. You can use the frequency table as a reference to set the desired bands. Clicking on the Back button will take you back to the previous page. Figure 87 Install- Frequency Setting Figure 88 Install- Frequency Table Advanced RF Technologies, Inc. 62 5.4.6.3 Install- SNMP Figure 89 Install - SNMP The SNMP section allows you to specify the Site ID and Manager IP. The Site-ID is the code that is used to identify a particular module. The Manager IP field is where the user inputs the IP address of the NOC system that is being used to monitor the SNMP traps. 5.4.6.4 Install- Auto Installation The Auto Installation routine can be run by clicking on the Install button. The Auto Installation routine runs Figure 90 Install Auto Installation basic system checks to ensure proper functionality. 5.4.7 Install- AWS Advanced RF Technologies, Inc. 63 Figure 91 Install - AWS The AWS Install page allows the user specify the desired frequncies by inputting the Reference Frequency and Bandwidth. The AWS module supports up to 3 non-contiguous bands. Bandwidth selection ranges from 1.25 to 18.75 MHz. The Web-GUI requires you to select the exact pass-bands that you will be using and exclude the guard bands when making your band selections. Advanced RF Technologies, Inc. 64 5.4.7.1 Install- AWS Band Selection To specify a frequency, input a DL reference frequency and select either start, center, or stop from the dropdown menu. Select the desired bandwidth from the dropdown menu under the Bandwidth column and then click Set. Figure 92 Install- AWS Band Selection Start Frequency If a start frequency is specifed, then this will be the beginning frequency of the band selection. Adding the bandwidth value that is selected from the Bandwidth column will give you the end frequency of your band selection. Center Frequency Once a center frequncy is specified and a bandwidth is selected, the system will split the bandwidth value in half and then add this to the center frequency to obtain your end frequency and also subtract this value to obtain your start frequency. Stop Frequency If a stop frequency is specified, then this will be the ending frequency of the band selection. Subtracting the bandwidth value that is selected from the Bandwidth column will give you the start frequency of your band selection. 5.4.7.2 Install- Frequency Table Advanced RF Technologies, Inc. 65 By clicking on the Frequency Table button, the following screen will appear. You can use the frequency table as a reference to set the desired bands. Clicking on the Back button will take you back to the previous page. Figure 93 Install Frequency Setting 5.4.7.3 Install- SNMP Figure 94 Install- Frequency Table The SNMP section allows you to specify the Site ID and Manager IP. The Site-ID is the code that is used to identify a particular module. The Manager IP field is where the user inputs the IP address of the NOC system that is being used to monitor the SNMP traps. Figure 95 Install - SNMP 5.4.7.4 Install- Auto Installation Advanced RF Technologies, Inc. 66 The Auto Installation routine can be run by clicking on the Install button. The Auto Installation routine runs basic system checks to ensure proper functionality. Figure 96 Install Auto Installation Advanced RF Technologies, Inc. 67 5.5 System The System tab allows the user to perform firmware updates, upload closeout packages, view any changes to the system, backup existing configuration, and add/remove user accounts, and change the login credentials of the Administrator. 5.5.1 System- Account 5.5.1.1 System: Account- Account Management The Account Management section allows the Administrator to delete any user account. Please note that the Account Management section is only available if you are logged into the system as the Administrator. To delete a user account click on the Account Management link and under the Delete column, click on the delete button. 5.5.1.2 System: Account- New Account Figure 97 System: Account- Account Management The New account section allows the Administrator to create a new user account. Please note that the New account section is only available if you are logged into the system as the Administrator. To create a new user account click on the New account link and fill in the fields highlighted in yellow as shown below. Figure 98 System: Account- New Account Advanced RF Technologies, Inc. 68 5.5.1.3 System: Account- Administrator The Administrator section allows the Administrator to create additional Administrator accounts. Please note that the Administrator section is only available if you are logged into the system as the Administrator. 5.5.1.4 System: Account- Change Password Figure 99 System: Account- Administrator The Change Password section allows the current user who is logged into the system to change their login credentials. Figure 100 System: Account- Change Password Advanced RF Technologies, Inc. 69 5.5.2 System- Closeout Package The closeout package section will allow the user to upload documents to the module. The maximum file size for each upload is limited to 10 MB. The total amount of space available for uploading document is 100 MB. Please do not use this section as the primary storage location of your documents. Documents may become unavailable if the system goes down. Figure 101 System- Closeout Package To upload documents to the module, click on the Choose File or Browse button and locate the file that you would like to upload, then enter in a Description of the file being uploaded. Afterwards, click on the Add File button to upload the file. Below is what you will see after the file upload. To delete the file, click on the delete button located in the last column. Figure 102 System- Closeout Package after the file upload Advanced RF Technologies, Inc. 70 5.5.3 System- User Log This section displays system events that have taken place. The User Log displays who has made the changes, the time and date of when the event took place, and what changes were made to the system. 5.5.4 System: Update Figure 103 System User Log To perform a firmware update, click on the System tab and the following screen will appear. Figure 104 System update Click on the Choose File button and locate the firmware file Click on the Upload button to perform the firmware update Once the firmware update is complete, the following popup message will appear:

Figure 105 Pop-up message after System update is complete Advanced RF Technologies, Inc. 71 5.5.5 System- Backup The backup section allows the user to save the settings of the module. To perform the backup, click on the Backup button and you will be prompted to save the backup file. To restore the settings to the system, perform an update using this file. 5.6 Help Figure 106 System backup If an internet connection is available, clicking on the Help Tab will redirect the user to our Technical Support page. 5.7 Logout Clicking the Logout button will log the current user off the system. Figure 107 Help Advanced RF Technologies, Inc. 72 6. MAINTENANCE GUIDE FOR SDR REPEATER 6.1 Periodic Inspection Checklist Check for loose connections between the repeater and antennas. If connections are loose, make sure that all connections are tightly fastened properly. Cables and connectors are in good condition. Ensure that the repeater brackets are in good. condition and that the repeater is securely fastened 6.2 Preventive Measures for Optimal Operation 6.2.1 Recommendations Perform the Periodic Inspection Checklist quarterly or semi-annually. 6.2.2 Precautions Do not operate the repeater with the antennas in extremely close proximity to one another as this may cause damage to the repeater. Do not change the parameters unless instructed to do so by an authorized supervisor. Do not move the repeater unless instructed to do so by an authorized supervisor. Do not detach any cables to the repeater unless repair of respective components is necessary. Advanced RF Technologies, Inc. 73 7. WARRANTY AND REPAIR POLICY 7.1 General Warranty The SDR carries a Standard Warranty period of two (2) years unless indicated otherwise on the package or in the acknowledgment of the purchase order. 7.2 Limitations of Warranty Your exclusive remedy for any defective product is limited to the repair or replacement of the defective product. Advanced RF Technologies, Inc. may elect which remedy or combination of remedies to provide in its sole discretion. Advanced RF Technologies, Inc. shall have a reasonable time after determining that a defective product exists to repair or replace the problem unit. Advanced RF Technologies, Inc. warranty applies to repaired or replaced products for the balance of the applicable period of the original warranty or ninety days from the date of shipment of a repaired or replaced product, whichever is longer. 7.3 Limitation of Damages The liability for any defective product shall in no event exceed the purchase price for the defective product. 7.4 No Consequential Damages Advanced RF Technologies, Inc. has no liability for general, consequential, incidental or special damages. 7.5 Additional Limitation on Warranty Advanced RF Technologies, Inc. standard warranty does not cover products which have been received improperly packaged, altered, or physically damaged. For example, broken warranty seal, labels exhibiting tampering, physically abused enclosure, broken pins on connectors, any modifications made without Advanced RF Technologies, Inc. authorization, will void all warranty. 7.6 Return Material Authorization (RMA) No product may be returned directly to Advanced RF Technologies, Inc. without first getting an approval from Advanced RF Technologies, Inc. If it is determined that the product may be defective, you will be given an RMA number and instructions in how to return the product. An unauthorized return, i.e., one for which an RMA number has not been issued, will be returned to you at your expense. Authorized returns are to be shipped to the address on the RMA in an approved shipping container. You will be given our courier information. It is suggested that the original box and packaging materials should be kept if an occasion arises where a defective product needs to be shipped back to Advanced RF Technologies, Inc. To request an RMA, please call (800) 313-9345 or send an email to techsupport@adrftech.com. Advanced RF Technologies, Inc. 74 8. SPECIFICATIONS 8.1 Electrical Specifications Table 8-1 Electrical Specifications Specifications Parameters Frequency Range DL UL SMR800/900 PCS BRS SMR800 SMR900 SMR800 SMR900 851~869MHz 935~940MHz 806~824MHz 896~901MHz 1930~1995MHz 1850~1915MHz 2502~2690MHz Frequency Error 0.05ppm 0.05ppm 0.05ppm Band Selection 0.25MHz Step, Max 18 MHz 1.25MHz Step Max 18.75 MHz

(Non-Contiguous 3ch) 2.5MHz Step Max 30 MHz

(Non-Contiguous 4ch) 1.5dB 1.5dB Gain Flatness Gain Full band Each band Maximum Step Range Tolerance Composite Output power Delay Roll offs 80dB 0.5dB 30dB 1.0dB 24dBm (SDR-24) 30dBm (SDR-30) 8us 90dB 0.5dB 40dB 1.0dB 24dBm (SDR-24) 30dBm (SDR-30) 6us 0.5MHz@ 65dBc 1MHz@ 50dBc Noise Figure( Uplink Only) 6dB@ Max Gain 6dB@ Max Gain 1.5:1 1.5:1 90dB 0.5dB 40dB 1.0dB 24dBm (SDR-24) 30dBm (SDR-30) 6us 1MHz@ 40dBc 3.5MHz@ 80dBc 6dB@ Max Gain 1.5:1

<-85dBm Typ (Max -90dBm) 700MHz Cellular AWS Specifications VSWR (Input Only) Sync Detection Level Parameters Frequency Range DL UL Frequency Error Lower A:728~734 MHz Lower B:734~740 MHz Upper C:746~757 MHz Lower A:698~704 MHz Lower B:704~710 MHz Upper C:776~787 MHz Band Selection A, B, A+B, C, A+C, C+B, C+AB Gain Flatness Gain Full band Each band Maximum Step Range Tolerance Composite Output power Delay Roll offs Noise Figure( Uplink Only) VSWR (Input Only) 869~894 MHz 2110~2155 MHz 824~849 MHz 1710~1755 MHz 0.05ppm A, B, A+A', B+B', Full Band 1.25MHz Step Max 18.75 MHz

(Non-Contiguous 3ch) 1.5dB 1.5dB 90dB 0.5dB 40dB 1.0dB 33dBm (SDR-30) 6us 1MHz@ 50dBc 6dB@ Max Gain 1.5:1 Advanced RF Technologies, Inc. 75 AF 2110~2180 MHz 1710~1755 MHz 1.25MHz Step Max 18.75 MHz

(Non-Contiguous 3ch)

-SDR-AF (4G & 5G) Parameters Frequency Range DL UL Frequency Error Band Selection Gain Flatness Gain Full band Each band Maximum Step Range Tolerance Composite Output power Delay Roll offs Noise Figure( Uplink Only) VSWR (Input Only) Specifications 0.05ppm 1.5dB 1.5dB 95dB 0.5dB 40dB 1.0dB 33dBm (SDR-AF) 6us 1MHz@ 50dBc 6dB@ Max Gain 1.5:1 8.2 Mechanical Specifications Table 8-2 Mechanical Specifications Parameters Specifications Remarks Size Weight Connector Type Mount type Security Module NMS Chassis Module NMS Chassis Input / Output Sum Port Ethernet 18.2 x 11.6 x 4.2 in 17 x 16.7 x 2.3 in 19 x 19.1 x 14 in 23 lbs 7 lbs 26 lbs N Female RJ45 Female Frame ground M5 Screw Wall mount or 19 rack mount Physical Cabinet 8.3 Power Specifications Table 8-3 Power Specifications Parameters Specifications Remarks AC Power 110~130V AC / 210~240V AC AC Select Advanced RF Technologies, Inc. 76 8.4 Environment Specifications Table 8-4 Environment Specifications Parameters Specifications Remarks Operating Temperature Relative Humidity Industrial dust

+14 ~ +122F

-10 ~ +50C

+5 ~ +90%

Telcordia GR63-core 8.5 Warranty & Certificates Table 8-5 Warranty & Certificates Parameters Specifications Remarks MTBF Certificates

> 100,000 hours UL 60950 FCC CFR47 part 24 FCC CFR47 part 15 FCC CFR47 part 90 Advanced RF Technologies, Inc. 77 APPENDIX A: MECHANICAL DRAWING SDR-

24/30/33 SDR-AF Figure 108 SDR Mechanical Drawing Advanced RF Technologies, Inc. 78 APPENDIX B: SHUTDOWN RETRY LOGIC The function of the built-in shutdown routine is to protect the repeater from any further damage from a hard-

fail that the system may be experiencing. Within 5 seconds of a hard-fail alarm being detected, the repeater will start the shutdown routine. The repeater will shut down by powering of the HPAs (high-powered amplifiers) for 30 seconds. After 30 seconds have elapsed, the repeater will power on the HPAs and check to see if the hard-fail alarm still exist. If the hard-fail alarm still exists, then the repeater will shut down for 1 minute (double the time of the previous shutdown time). After 1 minute has elapsed, the repeater will power on the HPAs and check to see if the hard-fail alarm still exist. If the hard-fail alarm still exists, then the repeater will shut down for 2 minutes (double the time of the previous shutdown time). The shutdown routine will repeat itself a total of 10 times. If the hard-fail alarm still exists after the 10th retry, then the repeater will turn off its HPAs permanently until a reset is performed or factory set is executed. Advanced RF Technologies, Inc. 79 INDEX AGC ................................................................. 11, 12, 43, 45 ALC ........................................................................ 11, 12, 45 AROMS .............................................................................. 11 BTS .............................................................................. 11, 30 CDMA ................................................................................ 11 CFE .................................................................................... 11 CW .................................................................................... 11 DAS ................................................................................... 11 DL 11, 23, 24, 43, 45, 51, 53, 56, 63, 73 Downlink ......................................................... 11, 43, 45, 46 HPA ............................................................................. 11, 43 HW .................................................................................... 11 IF 11 LNA ................................................................................... 11 LTE .................................................................................... 11 MS .................................................................................... 11 PLL .................................................................................... 11 PS 11 RF 2, 11, 12, 19, 20, 22, 23, 24, 25, 29, 39, 45, 46, 72 SQE ................................................................................... 11 SW .................................................................................... 11 UL 11, 43, 45, 73, 74 Uplink ..............................................................11, 43, 45, 73 VSWR ................................................... 11, 23, 24, 45, 46, 73 Advanced RF Technologies, Inc. 80

Date : Oct. 01, 2012 Rev : 2.0 FCC Agent Authorization Letter HACS-F004 FCC Agent Authorization Letter HCT America LLC

(TCB@hctamerica.com) 44946 Osgood Rd, Fremont, CA 94539, USA TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 1 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC Date : Oct. 01, 2012 Rev : 2.0 REVISION TABLE Rev 1.0 2.0 Description of Change Original Release(Obsolete) Updated template Date 06/28/2012 10/01/2012 Approved QM QM HACS-F004 FCC Agent Authorization Letter HCT America LLC

(TCB@hctamerica.com) 44946 Osgood Rd, Fremont, CA 94539, USA TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 2 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC ADRF KOREA, Inc. 5-5, Mojeon-Ri, Backsa-Myun, Icheon-City, Kyunggi-Do,South Korea ____________________________________________________________________________ Date: Jan. 27, 2023 To:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To whom it may concern:

Subject : FCC Agent Authorization Letter for FCC ID: N52-SDR-AF We, the undersigned, hereby authorize HCT CO., LTD to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by HCT CO., LTD on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). We recognize that we are still responsible for the terms and conditions outlined in the HCT America Client Services Agreement. This authorization is valid until further written notice from the applicant. Sincerely, HACS-F004 FCC Agent Authorization Letter Rev : 2.0

FCC US Agent Letter of Attestation Date: 02-16-2023 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046, USA FCC US Designated Agent Agent Company Name: Advanced RF Technologies, Inc. Agent Contact Name: Julie Song Agent US Address: 3116 W Vanowen St Burbank, CA 91505 Agent Email Address: jsong@adrftech.com Agent FRN: 0007740913 This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of the applicant for the FCC ID listed below. Applicant Name: Hyun-Kyung, Song FCC ID: N52-SDR-AF We are aware of the requirements and responsibilities of the applicants agent for service of process as outlined in the FCC section 2.911(d)(7). Sincerely yours, Name: Julie Song Title: President Company name: Advanced RF Technologies, Inc.

ADRF KOREA, Inc. 5-5, Mojeon-Ri, Backsa-Myun, Icheon-City, Kyunggi-Do,South Korea ____________________________________________________________________________ Date: Jan. 27, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Subject:

Letter for Warning Label Message FCC ID: N52-SDR-AF To Whom It May Concern:

Warning label messages will be also shown in online and point-of-sale marketing materials and on outside packaging of device per KDB 935210 D02 Signal Boosters Certification v04r02 in Section IV clause (d).

Attestation Letter Date: 02-16-2023 FCC ID: N52-SDR-AF To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046, USA We, ADRF KOREA, Inc., as requested by FCC, are declaring that both requirements of Section 2.911

(d)(5)(i)(ii) and 2.911(d)(7) are being satisfied likes below to the FCC requirements to protect the nation`s networks and supply chains from equipment (covered equipment) according to FCC 22-84 and KDB 986446 D01. 1. Section 2.911 (d)(5)(i)(ii)) 2.911

(d)(5)(i) We 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. And, we certifies that one of following, 2.911

(d)(5)(ii) 1. We are not identified on the Covered List and are not an affiliate or subsidiary of an entity identified on the Covered List. 2. We are identified on the Covered List as an entity producing covered equipment. But, we can be authorized since the reason as explained below. 3. We are an affiliate or subsidiary of an entity identified on the Covered List. But, we can be authorized since the reason as explained below.

*Only one of paragraphs 1, 2 or 3 should be checked, if checked on paragraphs 2 or 3, the reason why it does not include the covered equipment. 2. Section 2.911(d)(7) We, as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicants agent for service of process. We will maintain the 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. And we have the responsibility to inform the FCC whenever the agent information changes. FCC US Agent Information Agent Company Name: Advanced RF Technologies, Inc. Agent Contact Name: Julie Song Agent US Address: 3116 W Vanowen St Burbank, CA 91505 Agent Email Address: jsong@adrftech.com Agent FRN: 0007740913 Sincerely yours, Name: Hyun-Kyung, Song Title: Management Support Team Manager Company Name: ADRF KOREA, Inc.

ADRF KOREA, Inc. Date: J a n . 2 7 , 2 0 2 3 FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Towhomitmayconcern:

ClassIIpermissivechange We,ADRFKOREA,Inc.requestClassIIpermissivechangesinceanauthorizedproduct(FCCID:N52-SDR-AF) isaddedtooperationmodesbysoftwarechangesbelowwithoutanyhardwarechanges.

(DateofOriginalgrant:03/27/2019) Addingbelowcapabilitiesbysoftwareonly 1) 5GNR(20MHzBW) AllHWisidentical. Ifyouhavequestionsorneedfurtherinformation,pleasecontacttheundersigned. Sincerely,

ADRF KOREA, Inc. 5-5, Mojeon-Ri, Backsa-Myun, Icheon-City, Kyunggi-Do,South Korea ____________________________________________________________________________ Date: Jan. 27, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 RE: Request of Confidentiality for FCC ID: AF To Whom It May Concern:

Pursuant to Sections 0.457 and 0.459 of the Commissions Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, ADRF KOREA, Inc. hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give ADRF KOREA, Inc. temporary confidentiality of commercially sensitive information prior to product release. The requested Confidential and Temporary Confidential exhibits are listed as follows:

CONFIDENTIAL AND SHORT-TERM CONFIDENTIAL LIST Exhibit 1 Operational Descriptions Description CONFIDENTIAL SHORT-TERM CONFIDENTIAL 2 User Manual 3 Setup photo The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely,