OW4-PRC2090HFHF Tactical manpack

Includes PRC-2090 Manpack, PRC-2090 Vehicle Docking Station and PRC-2090 Base Docking Station 2090-00-02/6 - © Barrett Communications Head Office: European Office: Americas Office: Barrett Communications Pty. Ltd. Barrett Europe Ltd. Barrett Communications USA LLC 8-10 Port Kembla Drive Unit 9, Fulcrum 2, Victory Park 5770 Croy Road Bibra Lake, Western Australia, 6163 Solent Way Suite H P O Box 1214, Bibra Lake, Western Australia, 6965 Whiteley PO15 7FN Morgan Hill, CA. 95037-9120 AUSTRALIA UNITED KINGDOM UNITED STATES OF AMERICA Toll free number (within Australia) 1800 999 580 Telephone: +618 9434 1700 Telephone: +44 1489 880332 Telephone: +1 408 782 8000 Facsimile: +618 9418 6757 Facsimile: +44 1489 565422 Fax: +1 408 778 1683 Email: [email protected] Email: [email protected] Email:[email protected] Web Site: www.barrettcommunications.com.au 2 of 285 Barrett PRC-2090 Compliance................................................................................................... 9 FCC RF exposure warning .............................................................................................. 10 About this Operating and Installation Manual ........................................................................ 11 Icons and Standards ........................................................................................................ 11 Scroll keys .......................................................................................................... 11 Abbreviations and Acronyms .......................................................................................... 11 Introduction .............................................................................................................................. 13 Operation .................................................................................................................................. 14 User Controls ................................................................................................................... 14 PRC-2090 Front Panel Description..................................................................... 14 Using the Tactical Handset ................................................................................. 15 Keypad ............................................................................................................... 17 Locking and Unlocking the Keypad ..................................................... 19 PRC-2090 Transceiver Rear Panel Description .................................................. 21 Switching on the Transceiver .......................................................................................... 22 Switching on the Transceiver – Without a PIN .................................................... 22 Switching on the Transceiver – With a PIN ......................................................... 22 Switching Off the Transceiver ............................................................................. 22 Display .............................................................................................................................. 23 Receive Mode .................................................................................................... 23 Transmit Mode ................................................................................................... 24 Secure Mode ...................................................................................................... 25 Channel Attributes .............................................................................................. 26 Adjusting the Audio Volume ........................................................................................... 27 Selecting a Channel ......................................................................................................... 27 Using Channel Up/Down Keys ........................................................................... 27 Direct Channel Number Entry ............................................................................. 28 Barrett Selective Calling System .................................................................................... 29 General ............................................................................................................................. 29 International ....................................................................................................... 29 OEM 1 ................................................................................................................ 29 CCIR .................................................................................................................. 29 ALE FED STD 188 / MIL STD 188-141B (option) ............................................... 29 Selective Call –“Selcall” ...................................................................................... 30 Selective Call “Telcall” ........................................................................................ 30 Special Notes When Using OEM 1 Selective Call Protocol ................................. 30 More Selective Calling Information ................................................................................. 31 Selcall Self IDs ................................................................................................... 31 Selcall Decode ................................................................................................... 31 Selcall Transmit .................................................................................................. 31 Default Self IDs .................................................................................................. 32 Setting Default Self IDs ...................................................................... 32 Detaching an ID From the Default Self IDs ......................................... 33 Contacting Another Station - Using Selective Call “Selcall” and Telc…

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201 of 285 ALE Configuration Menus ALE State This feature enables or disables the ALE system Use the Scroll keys to select the setting required (example “ALE Enabled”):- When the setting required is selected press the key 202 of 285 ALE Autofill This feature enables or disables the ALE Autofill option. The Autofill option allows the 2050 transceiver to automatically add unknown stations to the ALE network. This means that whenever a new station is added to the network the network administrator does not have to individually re-configure each station in the network with the new stations ID. The Autofill queue is a first in first out queue where up to eleven new stations can be added, after this the next received unknown station will overwrite the first ID in the Autofill queue. To avoid this happening the operator must reassign the Autofill station ID alias. Use the Scroll keys to select the setting required (example “Autofill Enabled”):- When the setting required is selected press the key 203 of 285 ALE Scan List Note:- you can also enter this scan list select section by holding down the key for more than two seconds To select the ALE scan list required press the key Use the Scroll keys or press the first letter of the scan list you want to use (example shown – “s”) to select the scan table required:- then press the key 204 of 285 Auto Transmit When Auto Transmit is set to “Disable” the ALE system will not respond to any calls made to this station. Use the Scroll keys to select the setting required (example “Enable”):- When the setting required is selected press the key 205 of 285 Transmit Control When Transmit Control is set to “Disabled” the ALE system will not be able to transmit any ALE calls, including automatic soundings and responses to incoming ALE calls. Use the Scroll keys to select the setting required (example “Enabled”):- When the setting required is selected press the key 206 of 285 Sounding Control ALE operates normally both transmitting and receiving sounds when Sounding Control is set to "Enable”. In some circumstances however it is desirable not to transmit soundings under any circumstances, in this case Sounding Control is set to “Disable”. Sounding is limited to certain channels (pre-programmed by the ALE fill program). The ALE system will however, continue to make and respond to calls (depending on the Response Control settings). Use the Scroll keys to select the setting required (example “Enable”):- When the setting required is selected press the key 207 of 285 Sounding Address Configures the self address used during an automatic sounding (Sounding Control must be set to Global On). If sounding control = individual preset basis, the address used is dependant on the active channel. Use the Scroll keys to select the setting required (example “FIELDBASE2”):- When the setting required is selected press the key 208 of 285 Link Quality Analysis (LQA) Exchange This option enables or disables the exchange of LQA information with other stations Use the Scroll keys to select the setting required (example “Enabled”):- When the setting required is selected press the key 209 of 285 Link Quality Analysis (LQA) Exchange Mode This option sets the source of the LQA reading sent to the other station, it can be set to “Current LQA” which is a reading taken during the ALE burst just received or it can be set to “Averaged LQA” which uses the long term averaged value taken from memory. Use the Scroll keys to select the decay time or disable (example “Averaged LQA”):- When the setting required is selected press the key 210 of 285 Link Quality Analysis (LQA) Averaging This option sets the method used to update an existing link quality value stored in ALE processor memory when the new link quality value is worse than the stored value. The option can be set to either replace the old values with the new values or replace the old values with different weighted averages of the old values and new readings. Averaging reduces the effect that one bad reading might otherwise have on a perfect channel. If a new reading is better than an old value, the old value is replaced by the reading. There are 4 different averaging formulas available:- No averaging, replace the old values with new values (old+new)/2 ((3*old)+new)/4 ((7*old)+new)/8 Use the Scroll keys to select the LQA averaging value required (example “((7*old)+new)/8”:- When the setting required is selected press the key 211 of 285 Link Quality Analysis (LQA) Decay Rate This option sets the artificial decay rate for the link quality information that is stored in the link quality table within the ALE processor. Switching the sounding off and setting a decay rate of two hours would result in the recording of a perfect channel (100% channel quality) decaying to an unusable channel (0% channel quality) over a period of two hours. The decay rate can be disabled, set to 1,2,4,8,24 and 48 hours. Use the Scroll keys to select the decay time or disable (example “8 hours”):- When the setting required is selected press the key 212 of 285 Threshold Test Used to select which type of threshold test is used to determine what quality ALE channel is acceptable for communication. Either “Sinad”, “BER”, “Both” or “None” can be selected. Use the Scroll keys to select the test required (example “BER”):- press the key 213 of 285 SINAD Threshold This option sets the SINAD threshold at which an ALE channel is considered usable. This can be set to between 0 and 30dB. press the key using the numeric keys enter the SINAD threshold required (example “12dB”):- then press the key 214 of 285 BER Threshold This option selects the BER threshold at which an ALE channel is considered usable. If the required BER is not reached in the reply from the remote station the link establishment process is rejected. Depending on the retry setting the link establishment would continue on another link. It can be set between 0-30, selecting 30 effectively means that all links are allowed press…

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251 of 285 Base Docking Station Introduction The PRC-2090 base docking station incorporates the PRC-2090 vehicle docking station plus an AC Power supply module P/N 2090-06-01. A MIL-STD high speed HF Modem (P/N 2090-04-10) with software to suit is also available as an optional extra. This section provides instructions for the installation of land based HF communication equipment. Most of the installation work can be performed by non-technical personnel if they carefully follow the instructions given in this handbook. It is however recommended that the completed installation be checked by a suitably qualified technician. In some equipment configurations, technical adjustment is required for the equipment to operate correctly. Note:-Some equipment has specific instructions supplied with it. When this is the case those instructions over-ride the general guidance of this handbook, and must be followed in detail. Unpacking and Inspection When unpacking the transceiver, check the contents against the packing note provided. Before discarding the carton, check that all accessories have been removed and are not mislaid in the packing material. Inspect the equipment for any transit damage. If damage has occurred notify your supplier immediately and gain their advice on further action. Failure to do this could affect the warranty covering the equipment. Fixed Station Installations Transceiver Position The following should be considered when choosing a position for the transceiver. Operating Convenience The transceiver should be placed so that the operator is comfortable and any facilities he may require are easily accessible. Air Circulation Most transceivers rely on air flow around cooling fins to dissipate heat generated by the transmitter. The mounting position must allow free air flow around these fins. Proximity of Transceiver to Antenna When using RG-58 coaxial cable from the transceiver to the antenna a cable length of no more than 30 metres is recommended. Should a run of more than 30 metres 252 of 285 be required it is recommended that a low loss coax such as RG-213 or RG-8 be used. It is recommended that the transceiver chassis is connected to ground using the bolt on the rear panel to stop pick-up of unwanted noise from local power supplies and electrical equipment. Power Supply All Barrett transceivers require a supply voltage of 13.8 VDC. In most vehicles or vessels this is available from the battery, in the case of vehicles with a 24V system a 24V to 12V converter rated at 25 amps should be used (Barrett P/N 2090-06-02). In fixed station installations where mains power between 88VAC and 256VAC is available, a Barrett power supply (P/N 2090-06-01) should be used. In base station installations where no mains supply is available a Barrett solar power supply is available. Note:- Some installations use an AC battery charger to float charge the supply battery. Battery chargers can produce electrical noise from the rectifier diodes. This noise causes a static type of interference in the receiver. It may be necessary, therefore, to switch off the battery charger whilst the transceiver is in use. If float charging of batteries is required for installations with unreliable AC power supply, it is recommended that a Barrett power supply (P/N 2090-06-01) be used as this provides a boost and float charge facility to maintain a battery without the noise problem described above. Voltage Drop The average current consumption of the transceiver is low but during transmission of voice peaks, high current is needed for short intervals. This means that the power supply cable must be heavy enough to supply these short duration current peaks without excessive voltage drop. Preferably use only the power cable supplied with the transceiver. If extra cable is required use a cable with a conductor square area of no less than 8mm. Unwanted voltage drop will also occur if incorrect wiring techniques such as poor choice of connection points and incorrect use of terminal lugs are used. Protection Fuse The transceiver is provided with adequate internal protection. However, the fitting of an external fuse is considered necessary, not for protection of the transceiver itself, but to ensure that in the event of damage to the cable, a fire risk does not exist. The fuse used must be installed in the active wire as close as possible to the battery, and must be of a type which has a low voltage drop at the peak currents expected. Note:- in-line 3AG glass fuses are not suitable. An ATC automotive blade type fuse rated at 25A with a suitable high current ATC fuse holder rated at 30A or more should be used. These type of fuses and holders are contained in our standard installation kit (Barrett P/N BCA20004) or are available individually (Barrett P/N BCA20021) 253 of 285 Antenna The antenna is a most critical part of the complete radio installation. It must accept the output power from the transmitter, radiate that power with minimum loss and in the receive mode, accept weak signals for input to the receiver. Incorrect antenna installations will yield poor system performance and are often the cause of complaints of poor transceiver performance. A range of antennas is available from Barrett to suit most small fixed stations. Detailed instructions are included with each antenna. 254 of 285 PRC-2090 Tactical HF Transcevier and Docking Station (2090-05-00) Front View - 2090 Not Fitted Front View - 2090 Docked 255 of 285 Steps for Docking the PRC-2090 Transceiver into the Docking Station 1) Select where the handset clip is to be placed. The clip can be placed on the side of the docking station or on the top of the docking station. The clip can only be moved when the PRC-2090 transceiver is not fitted. Side mount handset clip To put the handset clip on top of the docking station unscrew the 2 screws holding the handset clip.

256 of 285 Position the handset clip onto the top of the docking station, securing it with the 2 screws. 2) Once the handset clip has been attached the PRC-2090 transceiver can be docked into the docking station. Position the transceiver so that the green capstans align with the ridge on the bottom track in the docking station. Push the PRC-2090 into the docking station firmly until a good connection between the transceiver and docking station is established.

257 of 285 Next the transceiver needs to locked into place. This is done by first tightening the black cradle locking knobs located on the front of the docking station. Once these have been tightened the heat sink can also be locked into place by first ensuring that the heat sink fins on the docking station line up with the gaps on the transceiver’s heat sink, then pulling down the black heat sink locking clips. This completes the process of docking the PRC-2090 transceiver into the docking station. 258 of 285 Removable Display Vehicle Mounting Bracket Assembly (2090-05-04) The removable display mounting bracket enables the LCD unit and handset of the PRC-2090 transceiver to be mounted away from the main body of the PRC-2090 manpack or PRC-2090 vehicle docking station. Steps to assemble the bracket. Display vehicle mounting bracket kit. If the RAM mount is to be used then it must before screwed to the display vehicle mount before the LCD unit is inserted.

259 of 285 Place the 2 Philips head screws supplied into the centre two screw holes as shown remembering to hold the screws in place. While holding one of the screws in with an appropriate Philips head screw driver use a shifter to tighten the supplied nut. Repeat with second screw. 260 of 285 Now loosen 2 of the black thumbscrews located on the top of the display vehicle adapter. Once these have been loosened push the loosened cradle slide up as high as possible. 261 of 285 To insert the LCD unit into the adapter, place the bottom of the LCD unit into the display vehicle mount bracket. Next push the top of the display into the bracket, push the cradle slide down and tighten the black thumb screws. 262 of 285 The removable display vehicle mounting bracket is now ready to be mounted at the required position. 263 of 285 PRC-2090 Docking Station – Rear Panel Connector Name A CW B Speaker C ESU D ATU E RF F Ground Lug G Linear Interface H Auxiliary Interface I Power Connector CB A D G E H I F 264 of 285 PRC-2090 Docking Station – Rear Panel Connector Pin Outs ESU/CW Socket 6 pin waterproof panel mounted socket Pin Name Description of function Level A 1PPS 1 PPS from External Syncronisation Unit (ESU) TTL B NMEA + NMEA data input +5VDC C +5 +5V for ESU power +5VDC D CW key CW key input Active low 0V E Gnd Ground Ground 0V F N/C Not connected 265 of 285 ATU Connector 6 pin waterproof panel mounted socket Pin Name Description of function Level A Gnd Ground Ground 0V B NC Reserved C NC Reserved D Scan/Tune Output - Initiate preamp. Active Low E Tuned Input - Tune result. Low - Succesful F +13V8 Fused Fused 13.8VDC output +13.8VDC Antenna RF Connector UHF RF Socket 266 of 285 Linear Amplifier Interface Socket 15 pin waterproof panel mounted socket C B A D G E M N L H J F K P R Pin Name Description of function Level A +13V8 Fused Fused 13.8VDC output +13.8VDC B Aux Dig Out 0 Linear Data Active Low C Aux Dig Out 1 Linear Clk Active Low D Ext ALC External Linear ALC E Tuned ATU Tuned Input Active Low F Aux PTT PTT in Active low 0V G RS-232 Tx RS-232 Tx data True RS-232 levels H RS-232 Rx RS-232 Rx data True RS-232 levels J Aux Dig In 1 Scan stop input Active low 0V K PTT Out PTT output to external equipment Active low 0V L Aux Dig Out 2 Auxiliary digital output (future use) Active low 0V M NC Reserved N Fan Fan Control 13.8V P Gnd Ground Ground 0V R NC Reserved 267 of 285 Auxiliary Socket 15 pin waterproof panel mounted socket C B A D G E M N L H J F K P R Pin Name Description of function Level A +13V8 Fused Fused 13.8VDC output +13.8VDC B Bal Audio Out 1 Balanced audio out 1 600 Ω -6dBm to +9dBm C Bal Audio Out 2 Balanced audio out 2 600 Ω -6dBm to +9dBm D Bal Audio In 1 Balanced audio in 1 600 Ω -24dBm to 0dBm E Bal Audio In 2 Balanced audio in 2 600 Ω -24dBm to 0dBm F Aux PTT PTT in Active low 0V G RS-232 Tx RS-232 Tx data True RS-232 levels H RS-232 Rx RS-232 Rx data True RS-232 levels J Scan Stop Scan stop input Active low 0V K PTT Out PTT output to external equipment Active low 0V L Aux Dig Out 2 Auxiliary digital output (future use) Active low 0V M External MICH Balanced Microphone input high N Speaker Loudspeaker output 0-10V P Gnd Ground Ground 0V R External MICL Balanced Microphone input low 268 of 285 Power Connector 2 pin waterproof panel mounted socket Pin Name Description of function Level A +13V8 Vin 13.8VDC input +13.8VDC B Gnd Ground Ground 0V 269 of 285 2019 Automatic Tuning Mobile HF Antenna - Barrett P/N 2019-00-10 The 2019 antenna plugs directly into the “ATU” and “RF” connectors located on the rear of the PRC-2090 docking station using the cables supplied. Important:- PRC-2090 transceivers must have the 2019 antenna option set during programming. 2019 Antenna to PRC-2090 Docking Station Connection Diagram 270 of 285 Mounting the Barrett 2019 Automatic Tuning Mobile HF Antenna The Barrett 2019 antenna should be mounted in positions similar to those illustrated in the diagrams on the following pages. Select a position free from excessive vibration. A bracket, fabricated to withstand the forces and vibration that can be expected during off-road driving, should be used to mount the antenna to the vehicle. When locating the mounting position for the antenna ensure that the antenna body, when flexing on its vibration mount, cannot come into contact with other parts of the vehicle. The antenna should be mounted as far from surrounding objects on the vehicle as possible. The antenna is supplied with one middle section and one top whip section (Barrett P/N: BCA201901), a tapered black spring (Barrett P/N: BCA201903), an antenna installation guide and a pre-terminated 6 metre control cable to suit the Barrett 2019 antenna to transceiver. A 6 metre (Barrett P/N: BCA201904) or 10 metre (Barrett P/N: BCA201902) extension cable for the control cable is also available. The control cable should be routed into either the engine compartment or boot (trunk) of the vehicle. If the joint between the antenna control cable and the extension cable is in an exposed position, a butyl rubber self amalgamating tape should be used to seal the joint. Do not wrap this joint if it cannot be made completely water tight as water will collect in the joint and cause it to corrode. A good earth (ground) to the main body of the vehicle is essential for efficient operation of the antenna. To achieve this clean all joints to bare metal and use copper braid earth straps if any non-metallic joints are encountered. After mounting the main body of the antenna, screw the black base spring onto the antenna body followed by the whip section. Important Information It is ESSENTIAL to maintain the minimum clearances between the antenna and surrounding metal work as indicated in the diagrams. FAILURE TO MAINTAIN THESE CLEARANCES WILL NOT ONLY REDUCE THE EFFICIENCY OF THE BARRETT 2019 AUTOMATIC TUNING MOBILE HF ANTENNA BUT MAY ALSO LEAD TO INTERNAL RF ARCING AND FAILURE. 271 of 285 272 of 285 Typical Military Vehicle Mounting Ex…

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TO WHOM IT MAY CONCERN This letter is to certify that the Barrett PRC-2090 HF Transceiver is designed so that frequencies above 25 Mhz may be barred from being programmed by the radio operator and can only be programmed by service/maintenance personnel to operate on authorized frequencies. Frequency Range (kHz)Rule Part 25010-25070Private Land Mobile (90) 25070-25210Maritime (80) N/A Private Land Mobile (90) 25210-25330Private Land Mobile (90) 25330-25550FIXED MOBILE 25550-25670RADIO ASTRONOMY N/A 25670-26100Radio Broadcast(HF)(73) N/A Remote Pickup (74D) N/A 26100-26175Remote Pickup (74D) N/A Low Power Auxiliary (74H) N/A Maritime (80) N/A 26175-26480Remote Pickup (74D) N/A Low Power Auxiliary (74H) N/A 26480-26950FIXED MOBILE 26950-26960ISM Equipment (18) N/A 26960-27230ISM Equipment (18) N/A Personal Radio (95) N/A 27230-27410ISM Equipment (18) N/A Private Land Mobile (90) Personal Radio (95) N/A 27410-27540Private Land Mobile (90) 27540-28000FIXED MOBILE 28000-29700Amateur(97) N/A 29700-29800Private Land Mobile (90) 29800-29890FIXED MOBILE 29890-29910FIXED MOBILE List of authorized frequencies above 25 MHz N/A denotes Not Applicable and is not authorized Phillip A Bradshaw Group Managing Director

29 June 2010 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: OW4-PRC2090HF Product Name: Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: 1 Schematics 2 Operational Description 3 Block Diagram These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Dated this 15 Day of February 20 10 By: Phillip A Bradshaw Signature Printed Title: Group Managing Director On behalf of : Barrett Communications Pty Ltd Telephone: +618 9434 1700

PRC-2090 Cradle SA-20908 PRC-2090 in Cradle PRC-2090 in Cradle, Front View PRC-2090 Cradle, Front View SA-20911 PRC-2090 Cradle, Rear View SA-20911 PRC-2090 Cradle, Left Side View SA-20911 PRC-2090 Cradle, Right Side View SA-20911 Cradle with rear open exposing the internal Cradle Interface PCB Mil Handset Light Weight Tactical Handset 2090-01-06 Light Weight Tactical Handset 2090-01-06 Light Weight Tactical Handset, Front View 2090-01-06 Light Weight Tactical Handset, Rear View 2090-01-06 Light Weight Tactical Handset, Side View 2090-01-06 PRC-2090 LCD Unit SA-20903 PRC-2090 LCD Unit, Front View SA-20903 PRC-2090 LCD Unit, Rear View SA-20903 PRC-2090 LCD Unit, Left Side SA-20903 PRC-2090 LCD Unit, Right Side SA-20903 PRC-2090 LCD Unit, Top View SA-20903 PRC-2090 LCD Unit, Bottom View SA-20903 PRC-2090 LCD Unit, Open PRC-2090 HF Tactical Manpack Photographs Front View Rear View Left Side View Right Side View Top View Bottom View Left Side View, LCD Unit Fitted

Revision 10 9 8 7 6 5 4 3 21 BARRETT COMMUNICATIONS - Model: PRC-2090 HF transceiver FCC ID: OW4-BARRETT2090HF Operation is subject to the following two conditions:This device may not cause harmful interference, andThis device must accept any interference received, including interference that may cause undesired operation (1)(2) FCC ID: OW4-PRC2090HF Label Requirements For IC Radio and CS-03 20mm 150mm

PRC-2090 Battery Pack 10A 2090-03-05 PRC-2090 Battery Pack 10A, Top View 2090-03-05 PRC-2090 Battery Pack 10A, Front View 2090-03-05 PRC-2090 Battery Pack 10A, Left View 2090-03-05 PRC-2090 Battery Pack 10A, Left Side View 2090-03-05 PRC-2090 Battery Pack 10A, Right Side View 2090-03-05 PRC-2090 Battery Pack 10A, Bottom View 2090-03-05 Cradle Interface PCB, Top View SA-20908 Cradle Interface PCB, Bottom View SA-20908 Light Weight Tactical Handset, Open 2090-01-06 Light Weight Tactical Handset, PCB Bottom View SA-20935 Light Weight Tactical Handset, PCB Top View SA-20935 PRC-2090 LCD Unit Internal Boards, Assembled LCD Unit PC Board, Top View Shown PC-2090P34 PRC-2090 LCD Unit PC Boards Left = Display Module, Bottom View LE-02928 Right = LCD Unit PC Board, Bottom View PC-2090P34 Display PCB, Top View LE-02928

PRC-2090 Open 1 PRC-2090 Open 2 PRC 2090 Open 3 PRC-2090 ATU PCB, Top View SA-20936 PRC-2090 ATU PCB, Bottom View SA-20936 PRC-2090 PA PCB, Top View SA-02010 PRC-2090 PA PCB, Bottom View SA-02010 PRC-2090 Microprocessor/RF/Audio PCB, Top View SA-02000 PRC-2090 Microprocessor/RF/Audio PCB, Bottom View SA-02000 PRC-2090 PA Interface PCB, Top View SA-20933 PRC-2090 PA Interface PCB, Bottom View SA-20933 Rear Panel PCB, Top View Rear Panel PCB, Bottom View PRC-2090 Fro…

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