OW4-PRC4090HFTactical HF SDR Transceiver

Compliance Barrett 4000 series Transceivers comply to the following communications standards: Australian / New Zealand Standard MF and HF Radio Communications. Equipment in the land mobile service utilising single sideband suppressed carrier emission: AS/NZS 4770:2000 FCC Part 90. FCC Part 87. Innovation, Science and Economic Development Canada (ISED) RSS-125 Iss: 3 Barrett 4000 series Transceivers comply to the following EMC standard: EN301 489-1 V 1.4.1 (2002-08). Barrett 4000 series Transceivers comply to the following electrical safety standard: EN60950-1:2002. ISED Non-interference Disclaimer This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) L’appareil ne doit pas produire de brouillage; (2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. FCC RF Exposure Compliance Statement The Barrett 4000 Series Transceivers have been evaluated and comply with the Federal Communications Commission (FCC) and Innovation, Science and Economic Development Canada (ISED) RF exposure limits for the General Population/Uncontrolled exposure environment. In addition, the Transceivers comply with the following standards and guidelines: • FCC 96-326, Guidelines for Evaluating the Environmental Effects of Radio- Frequency Radiation • FCC OET Bulletin 65 Edition 01-01 (2001) Supplement C, Evaluating Compliance with FCC • Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields • ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz • ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields - RF and Microwave. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Please note that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. RF Exposure Warning To ensure optimal Transceiver performance and to avoid exposure to excessive electromagnetic fields, the antenna system must be installed according to the instructions provided. High voltages exist on the antenna during transmission and tuning. Do not touch the antenna during these activities. RF burns may result. Install the grounding system or counterpoise as directed to prevent RF burns from any metal part of the Transceiver. Safe working distance is based on continuous exposure to CW type transmissions, as set out in the ICNIRP Exposure Guidelines (1998) for occupational exposure. Safe working distance can be reduced with normal voice communication. For ISED and FCC compliance, when the PRC-4090 HF SDR Transceiver is used at a power level of 150 watts PEP and a 13 dBi gain antenna, the antenna(s) used with this Transceiver should be located at least 14.4 metres from the operator and should not be co-located or operating in conjunction with any other antenna or transmitter. For ISED and FCC compliance, when the PRC-4090 HF SDR Transceiver is used in a vehicular environment at a power level of 150 watts PEP with 1.5 dBi gain antenna, the antenna(s) used with this Transceiver should be located at least 3.9 metres from the operator and should not be co-located or operating in conjunction with any other antenna or transmitter. RSS-Gen Transmit Antenna Statement This radio transmitter [6468A-4090HF] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Le présent émetteur radio [identifier le dispositif par son numéro de certification d’ISDE] a été approuvé par Innovation, Sciences et Développement économique Canada pour fonctionner avec les types d'antenne énumérés ci‑dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est supérieur au gain max…

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B ARRETT Operating and Installation Manual Barrett PRC-4090 Tactical HF SDR Transceiver 4090-00-02/3.1 Model: PRC-4090 HF SDR Transceiver © Barrett Communications 3 RF Exposure Warning To ensure optimal transceiver performance and to avoid exposure to excessive electromagnetic fields, the antenna system must be installed according to the instructions provided. High voltages exist on the antenna during transmission and tuning. Do not touch the antenna during these activities. RF burns may result. Install the grounding system or counterpoise as directed to prevent RF burns from any metal part of the transceiver. Safe working distance is based on continuous exposure to CW type transmis- sions for occupational exposure. Safe working distance can be reduced with normal voice communication. Important Notes: • When the PRC-4090 transceiver is used at a power level of 150 watts PEP and with a 13 dBi gain antenna, the antenna(s) used with this transceiver should be located at least 14.4 metres from the operator and should not be co-located or operating in conjunction with any other antenna or trans- mitter. • When the PRC-4090 transceiver is used in a vehicular environment at a power level of 150 watts PEP with 1.5 dBi gain antenna, the antenna(s) used with this transceiver should be located at least 3.9 metres from the operator and should not be co-located or operating in conjunction with any other antenna or transmitter. • Antenna types not included in the list below that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. 4 Typical antenna types and minimum separation dis- tance: Antenna typeGain (dBi) PEP (W) Minimum safe sepa- ration distance (m) Typical Environ- ment Automatic tuned and whip01503.3Vehicle Magnetic Loop1.51503.9Vehicle Multi-wire Broadband51505.8Fixed Log-Periodic1315014.4Fixed Automatic tuned and Whip01002.7Vehicle Magnetic Loop1.51003.2Vehicle Multi-wire Broadband51004.7Fixed Log-periodic1310011.8Fixed Automatic tuned and Whip0301.5Manpack Magnetic Loop1.5301.8Vehicle Multi-Wire Broadband5302.6Fixed Log-Period13306.5Fixed The above antennas are identified for reference only. It is important that the installer and operator maintain a minimum safe separation distance with the actual antenna used in the installation and to insure, in a vehicular environ- ment, that the transmitter is only used when persons outside the vehicle are at least the recommended lateral distance away. The image below shows an example of minimum recommended separation dis- tance from antenna in a vehicular environment. 5 Note: References to Vehicular environments and minimum safe oper- ating distances relate to persons outside the vehicle only and not to persons within the vehicle. 6 Contents INTRODUCTION 1 ................................................................................1 Introduction ..................................................................................................2 Important Disclosure ............................................................................. 3 Terms & Abbreviations .......................................................................... 4 The Barrett PRC-4090 HF Transceiver Overview..............................................6 BASIC OPERATION 2 ..........................................................................17 Starting the Transceiver ...............................................................................18 Keypad ........................................................................................................18 Display ........................................................................................................19 Swipe Menu ........................................................................................ 21 Status Info ...................................................................................................23 Antenna Type ..............................................................................................24 Selecting a Channel .....................................................................................25 Making a Voice Call .....................................................................................26 Making an Emergency Call ..........................................................................27 Receiving an Emergency Call .......................................................................28 SELCALL 3...........................................................................................29 Overview .....................................................................................................30 Important Selective Calling Information ......................................................31 Summary of Calling Systems .......................................................................32 Setting up a Self ID .....................................................................................33 Setting up Contacts .....................................................................................34 Additional Contact Information .......................................................... 36 Making a Selcall ..........................................................................................37 7 Beacon Call ......................................................................................... 38 Selcall .................................................................................................. 39 Telcall .................................................................................................. 41 Advanced Call History ......................................................................... 43 Advanced Selcall Functions .........................................................................47 Selcall Settings .................................................................................... 47 Pagecall .............................................…

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24 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Antenna Type Before making a call, an antenna type needs to be selected from the Antenna icon in the swipe menu. If the transceiver is being used with a PRC-4090 battery pack, the menu will show only 50 Ohm and Whip/ Longwire. Tap Antenna 1 Type from the IO screen to display the Antenna 1 Type screen. To reveal more items, either swipe down on the touch screen or press . Select an antenna type from the fol- lowing: Antenna TypeSelect when... Base StationBase station antennas such as the Barrett 912 series are used. No tuning signals are emitted on channel change. 910 Mobile AntUsing a Barrett 910 automatic tuning mobile antenna 911 Auto TunerUsing a Barrett 911 automatic tuner 2019/4045/4047/4049 Auto Tuner Using a Barrett 2019/4045/4047/4049 automatic tuning mobile HF antenna 2018 Loop AntUsing the 2018 Mobile magnetic loop HF antenna 4075 LinearUsing the transceiver with a Barrett 4075 series linear amplifier. 4075 Linear with ATUUsing the transceiver with a Barrett 4075 series linear amplifier with ATU. 4011/4015 Auto TunerUsing a Barrett 4011/4015 automatic tuner 4017 Auto TunerUsing a Barrett 4017 automatic tuner OEM Tuner3040 tuner compatible (non-Barrett product) OEM 2 TunerF2265 tuner compatible (non-Barrett product) OEM PreselectorUsing a non-Barrett Preselector 411 Auto TunerUsing a 411 Automatic HF Tuning Unit Antenna 25 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Selecting a Channel There are two ways to select a channel on the Barrett PRC-4090 HF SDR Trans- ceiver. 1. From the home screen, press the up (A) or down (B) keys on the keypad. This will allow a user to cycle though the programmed channels. 2. From the transceiver home screen, press the channels but- ton. This brings up the Channel Selection menu and shows all of the channels programmed into the transceiver in one place. Tap a channel to select it. Holding down this channel button opens the Channel information screen which displays all of the settings for the channel currently selected. If there are no channels programmed into the transceiver, turn to page 66 for instructions on channel programming. Alternately, to search for a specific channel, tap and type in the number of the channel as programmed in the transceiver eg. typing 4 will select channel 4. Channels A B Portrait mode Landscape mode A B 26 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Making a Voice Call Press To Talk (PTT) Button Microphone Speaker When Using the Microphone: 1. Press and hold the PTT (transmit) button only while talking 2. Position the microphone close to your mouth 3. Speak clearly 4. Use the word ”over” to indicate that you have finished speaking, and then release the PTT (transmit) button. Notes: • The Barrett PRC-4090 has a transmit time-out facility. This facility (when pro- grammed) allows the transmitter to be keyed in transmit mode with the PTT (transmit) switch for a set time period, after which the transceiver switches to receive until the PTT (transmit button) is released and re-keyed. This facility prevents the transmitter transmitting for long periods of time if, for example, the microphone becomes jammed between seats in a vehicle causing the PTT (transmit) switch to be held down. Enabling, disabling and changing the time of the transmit timeout facility can be set either when programming the trans- ceiver or in the RF Section of the Settings menu. See page 94. • The microphone up / down buttons can be configured for channel change or volume control functions either when programming the transceiver or in the General Section of the Settings menu. See page 62. 27 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Making an Emergency Call All Selcall emergency calls are transmitted by simultaneously pulling and twisting the on/ off switch to the Emerg. Setting and releasing the switch. Emergency transmission will begin immediately. The LED indicator will flash slowly before transmission starts and become solid green upon transmit. An emergency call can also be initiated by press- ing and holding the and keys simul- taneously. If the Emergency call is not enabled on the transceiver, an error message will appear and the emergency call will not be sent. The action of the emergency call depends on how the transceiver has been programmed. For example: • Selective Call that transmits and automat- ically changes to a selection of channels. Note: Emergency Channels must be programmed using the Barrett PRC-4090 HF SDR Programming Software (P/N BCA40001). Transmits the emergency Selcall sequence on each of the maximum of 20 channels programmed as emergency channels. There is a pause between calls allowing the operator to listen for an acknowledgment coming back. After the Emergency call is attempted on all the preprogrammed emer- gency channels the transceiver will go back into scan mode (if scanning is available) or stay on the last channel selected before the Emergency call was initiated. If a GPS receiver is fitted and enabled, the GPS position is also sent with the call. Note: After the emergency call has been sent, there is no indication that a call has been sent for security purposes. • Royal Flying Doctor Service (RFDS) alarm Two-tone alarm 880 Hz + 1320 Hz continuous (Australian use only) – alerts the Royal Flying Doctor Service on RFDS channels. 1. Select a channel with RFDS as the Selcall format. 28 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - BASIC OPERATION Receiving an Emergency Call On receipt of an emergency Selcall, a dis- tinctive audio alarm is emitted and the fol- lowing message displayed. If the transceiver sending the emergency Selcall is fitted with a GPS receiver, the position will also be displayed. 2. Simultaneously pull and twist the on/off switch to Emerg. and release the switch. The RFDS alarm will continue transmitting for ten seconds. To cancel the RFDS alarm, press the PTT button or the bu…

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80 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Digital Voice (Encoding) Encoding on Encoding off Encoding can improve the reliability of commu- nications over noisy channels where reception of analogue voice can be very poor. Poor voice quality can be improved mark edly by the use of digital voice modules to the point where barely usable frequencies are made clear. Secure Dig- ital Voice allows users to encrypt their communications over HF therefore pro- viding a secure HF network. Both Digital Voice and Secure Digital Voice capability can be utilised in Barrett 4000 and 2000 series HF Transceivers using Barrett digital voice modules which are designated as: DV Digital Voice module with no encryption SDV-56 Secure Digital Voice module with DES 56 encryption (No export licence required) SDV-256 Secure Digital Voice module with AES 256 encryption (Export licence required) Signal-to-noise ratio conditions can change during communications between HF stations. The digital voice modules have auto baud capabilities which auto- matically adjust baud rates up or down whilst communicating between the transceivers allowing the users to transmit and receive signals with optimal voice clarity. For more information on Digital Voice, please consult the Barrett HF Radio Digi- tal Voice and Secure Digital Voice Operating Manual (P/N BCM40504). 81 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Export SettingsExport The export function of the PRC-4090 is predominantly used for diagnostic purposes and diagnostic and log files can be exported and sent to Barrett Communications. The Android version of the Barrett 4000 Series Remote Control App can be downloaded directly from the transceiver head. For further infor- mation please consult the Barrett 4000 Series IP Connectivity Guide (P/N BCM40507). 82 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION Frequency Hopping This option requires an Export Permit. Frequency hopping can be used to limit performance degradation due to inter- ference and to reduce the likelihood of interception. Frequency Hopping Spread Spectrum (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels. The transceiver employs a unique frequency hopping system that uses an exter- nal GPS. Note: An external GPS must be connected and providing valid data for the frequency hopping system to operate. Selecting the Hopping Band Select a channel as per normal. This channel and mode is used by the trans- ceiver to determine the hop band. Entering the Hopping PIN This code is entered under Settings < Security (see page 101). All of the trans- ceivers that will be communicating on the same hopping band will need to have the same Hopping code. Enabling and Disabling Hopping 1. Attach a GPS receiver to the rear of the transceiver. 2. Select a channel with a transmit frequency (i.e. not disabled). 3. Enter the Hopping Pin 4. Press the Hopping icon on the transceiver home screen to acti- vate Hopping. Hopping voice communication can now be used. Pressing the Hopping key for a sec- ond time (or pressing the back but- ton) disables Hopping mode. Hop 83 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION GPS Push GPS Push is an additional option used in conjunction with the Barrett 4077 HF Map & Track Software and provides automated transmission of GPS location at set intervals. These intervals can be programmed using the Barrett 4000 Series Program- ming Software (P/N BCA40001). For further information, please con- tact Barrett Communications. Settings GPS Push GPS Push State GPS Push state enables or disables the automatic transmission of the GPS location. Privacy Key Preamble Time This allows the input of the GPS privacy key. This privacy key allows the transmission to be DES56 encrypted, so long as the receiving station has the same privacy key in order to decrypt the transmission (DES56 encryption does not require export approval). Length of preamble transmitted at the start of the GPS Push call. Note: Read Only items are set in the Barrett 4000 Series HF Programming Software. See the appropriate manual for more information. 84 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION IO Settings Tap IO from the Settings screen to display the IO screen. A list of items that may be config- ured is displayed. The current status of each of the items is displayed to the right. To reveal more items, either swipe down on the touch screen or press . Settings I/O RS232 Out (async. Indications) RS232 Connection RS232 Network Encryption This setting enables or disables RS232 status information output from the transceiver via the top hotshoe auxiliary connector. Note: This command does not enable/disable RS232 control of the transceiver when the RS232 option is fitted. It is used to control the output of status information via RS232 used by some external programs such as vehicle tracking. This selects whether the RS232 connection is made via a direct connection to the top hotshoe auxiliary connector on the PRC-4090 or via a network (WiFi or Ethernet - please see 4000 Series IP Connectivity/Networking Guide [P/N BCM40507]). Enabling RS232 Network Encryption secures information transfers over RS232 networked connections. Disabling this feature removes any encryption from the RS232 network. 85 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION External Alarm Type (Not applicable to the PRC-4090) This sets the action of the external alarm out- put when a Selcall is received by the transceiver. It can be set to either a pulse output (for use with a horn) where the output is activated 15 seconds on, 15 seconds off; or a constant output (for use with a rotating beacon). Both are reset by pressing or the PTT button. Select either: Latched or Pulsed. Antenna 2 Antenna 1 This option is only active if connected to a Dual Port Antenna Switch Unit (P/N BCA40506) which can only i…

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112 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Manpack Installations When combined with a battery pack, the PRC-4090 easily adapts to suit man- pack configurations. The Control Handset can be easily mounted to molle or webbing with a molle attachment. 113 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Control Handset Mounting The PRC-4090 Control Handset can easily be mounted to webbing or molle using the PRC-4090 Molle Attachment (P/N 4090-05-02). The transceiver can be stored screen facing out- wards or reversed so that the screen is protected. The Molle Attachment can also be used to attach to solid surfaces. 114 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Audio Routing OFF Z EMERG. ON OFF Z EMERG. ON When in manpack configuration, all audio and microphone options are active as illustrated by the below images. Volume for both the PRC-4090 Control Handset and the H250 handset are controlled by the PRC-4090 Control Handset. Control Handset • Control Handset mic and speaker are enabled • Volume control via the Control Handset Control Handset and H250 • Control Handset mic and speaker are enabled • H250 mic and speaker are enabled • Volume control via the Control Handset 115 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Battery Pack The Barrett PRC-4090 Transceiver can be powered in multiple ways. For man- pack use, it has been designed to use the Barrett PRC-4090 16Ah Battery pack or external military battery. The PRC-4090 Battery Pack has an in-built charger/ battery management system. This battery pack can be charged in multiple ways as outlined over the following pages. With the battery pack fitted, the transceiver can be operated and the battery pack charged simultaneously when a DC input of between 10 V DC and 60 V DC is supplied to the unit. Additionally, the PRC-4090 battery pack can be charged connected or discon- nected to the manpack using the AC/DC input universal power adaptor unit or directly from a 12 or 24 V tactical solar panel (MPPT charger fitted for optimised current input), or BB series military battery. 116 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION The 16Ah battery pack (P/N 4090-03-05/BCA409005 ) is, by default, shipped with the battery cells isolated (see below). To use the battery, the cells must be connected. Follow the steps below to switch the isolator from“Battery Isolated” to “Battery Connected”. Isolated Connected 1. Ensuring that nothing is connected to the battery, use a Philips head screw driver to remove the screws securing the isolator in place, as shown opposite. 2. Remove the isolator. Removing the battery isolator DC IN 10-70 V BATTERY PACK Li-ion CHARGE STATUS BATTERY ISOLATOR BATTERY CONNECTED BATTERY ISOLATED 80-100% 20-40% 60-80% 5-20% 40-60% 0-5% BATTERY ISOLATOR BATTERY CONNECTED BATTERY ISOLATED DC IN 10-70 V BATTERY PACK Li-ion CHARGE STATUS BATTERY ISOLATOR BATTERY CONNECTED BATTERY ISOLATED 80-100% 20-40% 60-80% 5-20% 40-60% 0-5% BATTERY ISOLATOR BATTERY CONNECTED BATTERY ISOLATED 117 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION 3. Turn the isolator 180 o and gently replace the isola- tor evenly in the socket, ensuring that “Battery Con- nected” is now at the top of the isolator. 4. Return the screws to their original positions. The e-ink display will turn black. 5. Connect the charger to the battery to begin use. 1. Ensuring that nothing is connected to the battery, remove the screws securing the isolator with a Philips head screw driver. 2. Using an appropriate tool, gently and evenly prise the isolator from the socket (see opposite). Re-isolating the battery 3. Turn the isolator 180 o and gently replace the isolator evenly in the socket, ensuring that “Battery Isolated” is now at the top of the isolator. 4. Return the screws to their original positions. 118 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION AC/DC Input Universal Power Adaptor Unit P/N 2090-03-01 For operation from a mains voltage between 100-254 V AC sources: 119 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Tactical Solar Panel P/N 2090-03-02 or 03 120 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION Military battery The PRC-4090 can interface with off-the-shelf Military standard batteries such as BB series batteries. To interface with such batteries, the adaptor and interface cable are required. Battery Charge Indicator of the 4090 121 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION The e-ink display of the PRC-4090 Battery Pack displays five dots indicating battery charge levels: Zero dots<5% Solid 1 black dots5%-20% Solid 2 black dots20%-40% Solid 3 black dots40%-60% Solid 4 black dots60%-80% Solid 5 black dots80%-100% When charging the 4090 Battery Pack, the LED indication will animate. 5 running dots: Filling up 0 - 20% charge 1 solid dot and 4 running dots: 20% - 40% charge 2 solid dots and 3 running dots: 40% - 60% charge 3 solid dots and 2 running dots: 60% - 80% charge 4 solid dots and 1 dot blinking: 80% - 95% charge 5 dots: charge complete The Control Handset display will also display the following icon when charg- ing: 122 BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION The PRC-4090 manpack can be used with the 10 metre throw over long-wire provided or the optional 3 metre collapsible whip. Note: Either the whip or the long-wire can be used but not both together. Collapsible Whip Antenna (P/N 4090-02-07) The gooseneck is fitted to the whip antenna stud and the whip to the gooseneck by bayonet fitting. The whip antenna should then be unfolded to its maximum height. If using the Barrett manpack while walking in the backpack configura- tion it is suggested that while in receive standby mode the collapsible antenna be only extended to half height and secured using the Velcro tab. When a call is received extend the antenna to full height before transmission. When using an un-tuned antenna such as the whip or the lo…

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