Codan 2310 2310 HF Radio System User Manual PDF File
Codan Limited 2310 HF Radio System PDF File
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User Manual C
OPERAIING THE TRANSCEIVER USING me MICROPHONE Using the microphone The microphone on the handset is located at the bottom ofthe Sentry-ll 2320 Handset. You may also use the microphone on an 11-250 handset (Codan part number 08-07381-001). When you talk into the microphone: - hold the microphone side-on and close to your mouth - hold down PTT - speak clearly at your normal volume and rate - release PTT to retunI to receiving mode While you are transmitting and the speaker is in the Earpiece mode, the handset outputs a small percentage of your microphone signal (i.e., "side-tone") back into the earpiece. This does not occur in the Loudspeaker mode to avoid feedback. You may press ZlSPK to change the speaker mode. NOTE: By default, the transceiver is set up to transmit a short beep when you release PTT. This removes the need for you to say ‘over’ at the end of your transmission. CAUTION: Your conversation can be monitored by anyone tuned to your transmit frequency, unless you are using one ofCodzIn’s encryptors or the frequency hopping feature. Your signal can potentially tervel very large distances. IfPTT is held continuously for a certain length oftime, the system stops transmission, switches to receive and shows an error message on the control point. This ensures that, even ifthe PTT button is being held down accidentally, the battery will not be discharged, and your transceiver is ready to receive calls. You can set the length of time the system waits before it cuts transmission (default is 10 min), or switch off this feature. SEva-Hm TRANSCEIVER DPERATOR GUIDE 39 OPERATING THE TRANSCEIVER SETTING THE BASICS Setting the basics Setting the time and date The transceiver is set to UTC time in the factory. You set the local time and time zone for the location oftlIe control point. This feature is useful if you have a communication network that spreads over several time zones, or you need to time stamp your transmissions according to the current time at longitude zero. To set the time and date: 3 From the main menu, select 5 (General), then 1”. ( me and Date). J Press ‘— (Set). 3 Press v to move to the Time Zone entry. 2 Press 1 or > to select the time zone that you want to use. I Press v to move to the Daylight Saving entry. 3 Press 1 or > to select the time that you want to use. J Press v to move to the Local Time entry. 3 Press ) to enter edit mode for the local time. 2 Press A or v to scroll to the value that you want to set, then press ) to move to the next item. I Repeat this for minutes, seconds and AM/PM values. :I Pres ‘__(Save) to save the local time. 2 Press v to move to the Local Date entry. 3 Press ) to enter edit mode for the local date. J Press A or v to scroll to the value that you want to set, then press ) to move to the next item. 3 Repeat this for the day/month and year, as required. 2 Press \— (Save) to save the local date. I Press v to move to the Clock entry. 3 Press 1 or D to select the type of clock that you want to use. 40 SENTRv-Hw TRANSCEIVER OPERATOR GUIDE OPERATING THE TRANSCEIVER Same THE EASlCS : Press v to move to the Time Format entry. :| Press 1 or > to select the format that you want to use. J Press v to move to the Date Format entry. 3 Press 4 or b to select the format that you want to use. J Ifyou want to review the infomiation that you have entered, press A or v to move through the entries. I Press ‘— (Save) to save the information. Setting the brightness of the display To set the brightness: J Do one ofthe following: - Press A + 0. - From the main menu, select 5 (General), then § (Brightness). Adjust Display Brightness 0 Low 0 Medlum . ngh J Press A or v to scroll to the value that you want to set, then press OK. I Press \-— (Save) to save the information. NOTE: You can also toggle the 2320 Handset backlight on and offusing a macro. To do this you must assign the Toggle Handset Backlight macro to a hot key. This macro changes both the display and keypad backlight simultaneously. SEmRv-Hm TRANSCEIVER DPERATOR GUIDE 41 OPERATING IHE TRANSCEIVER CALLING Calling This section describes how to make the various types ofcalls from the transceiver. You can make a call to a contact, return or repeat a call from the Call History, or enter information at the time ofthe call. For selective calling in ALE/CALM and Selcall IIF networks, a control point must register a self address from the list of available addresses for that IIF network. Selfaddresses are included in the IIF network information in either the SelcalllALE Self Address or Additional Selt Addresses entries. If you select an [IF network for a call that does not have a registered self address for the control point, you will be prompted to register one ofthe available self addresses. If you decline to register at this prompt, you can register a self address in General > Register Self Address (available in advanced view ifthe HF network has two or more self addresses). CAUTION: Your control point should have a registered self address for each HF network in which you want to receive voice calls. lfa 3031 Crosspatch is connected as a peripheral device to the GP port connector and you want to be able to receive calls that are specifically addressed to the crosspntch, its selfaddress must be entered in the Settings > Connectors > RFU GP Port > RFU GP Port Startup entry, for example selfid 3031 NOTE: Depending on the options installed in your transceiver, additional call types fi’om those discussed in this guide may be available, For more information, please see the Reference Manual. NOTE: Depending on the setup of the HF network used for the call and the digital voice and/or encryption options installed in the transceiver. the transceiver may switch automatically between analogue/digital voice and/or clear/secure signals, Related links: Overview of digital voice options on page 59 SENTRv-HW TRANSCEIVER OPERATOR GUIDE oveunue me rmscewea CALLING Making a call to a contact NOTE: The default behaviour for the CALL key is to press it to start a call, or hold CALL to see your Contacts/Call History. This behaviour may be reversed by your system administrator, if required. NOTE: You may use a USB keyboard to initiate and control a call. Please refer to USB Keyboard support on page 4 for more information, To make a call to a contact: I Hold CALL. :1 Press A or v to scroll to the contact who you want to call. '3— Contacls (1/3) Bob 1 Sue Optionsi Close Ifthere is more than one call available for the Contact, / is shown to the right of the Contact name when it is highlighted. If there is only one call for the Contact, the icon for this call is shown to the left ofthe contact name. 2| Ifmultiple calls are available, press CALL or ). BIII [1/4) 3:: Get Position 1 Send Position goat Status ails Close SENIRv-HW TRANSCEIVER OPERATOR GUIDE 43 OPERATING THE TRANSCEIVER CALLING 2| Press A or v to scroll to the call that you want to make. The call types that are available for the contact are set up in User Data > Contacts. NOTE: Ifonly one call has been set up for the contact, you cannot change this at the time of the call. :I Press CALL. NOTE: Depending upon the call type and other information stored with the contact, you may be prompted to select information during the call. Press CALL to progress through these prompts. :I prrompted, pre, A or v to scroll to the channel that you want to use, then press CALL. A 7 is shown next to the currently selected channel/mode. To abort the call before it is answered, press PTT or SCAN. There will be audible beeps or a pop-up message to indicate that the call has been successful. NOTE: IfSettings > Calling > General > LBT Mode is set to Enabled or Override allowed, you may be asked to make the call again ifthe channel is occupied. Making a call from the Call History The Sentry-II transceiver stores information for up to 200 calls that have been sent and received for a control point. Each control point may store this call information for up to 20 RFUs to which it has been connected. The detailed Call History is accessed by holding CALL, then pressing ) to scroll to the Call History tab. NOTE: For more information on the Call History, please see the Reference Manual [Codan part number 15-04188-EN Issue 1). 44 SENTIw-Hw TRANSCEIVER OPERATOR GUIDE ovzunuo m2 rmseswza CALLING NOTE: NOTE: NOTE: NOTE: The default behaviour for the CALL key is to press it to start a call, or hold CALL to see your Contacts/Call History. This behaviour may be reversed by your system administrator, if required. A filtered Call Log is available in the call screen: This log contains only the latest instance of a call to and from a specific station, and provides records of up to 20 calls. Missed calls are indicated by an exclamation mark in a yellow triangle in front of the call icon. You may use a USB keyboard to initiate and control a call. Please refer to USB Keyboard support on page 4 for more information. To make a call from the Call History: I: Hold CALL, Press 4 or b to select the Call History tab. The unfiltered history of the last 200 calls is shown, Call History (34) fiEBase/Emergu. 8:11 PM 9 (- [Base/Selective 8:10 PM 4. 14321 (9) 7:21 PM Q. Bob/4321 2:48 AM 1 NOTE: Ifyou want to view two lines ofinfonnation for each call as you scroll through the Call History, switch to advanced view (A + 2). Ifyou want to filter the Call History by incoming calls, outgoing calls, or missed calls, press # repeatedly until the log that you want to view is shown. Press A or v to scroll to the call that you want to return or repeat. SEva-Hm TRANSCEIVER OPERATOR GUIDE 45 OPERATING THE manscaven CALLING NOTE: You can also press \— (Find), enter appropriate characters, then highlight the call that you want to return or repeat, a If you want to view the details of the call, press \— (Optlons). scroll to Detalls, then press \— (Select). Press _' (Close) to exit from the call details. a Press 4 or D to select the call type that you want to use. a Continue from making your chosen call type. Related links: Viewing missed calls on page 56 Making a call from the Emergency key You can set up an emergency contact with calls that are chained together when you hold the A key, Emergency contacts are set up in User Data > Contacts > Emergency Contacts, CAUTION: If you have more than one emergency contact, you will be prompted to select the emergency contact who you want to call at the time of the call. NOTE: You may use a USB keyboard to initiate and control a call. Please refer to USB Keyboard support on page 4 for more information. NOTE: For more information, please see the Reference Manual (Codan part number15-O4188-EN Issue 1). To make a call from the Emergency key: 3 Hold A for 2 sec. J If you have more than one emergency Contact, scroll to the Contact who you want to call, then press CALL. 46 SEva-Hw TRANSCEIVER OPERATOR GUIDE OPERAIING THE TRANSCEIVER CALLING II If prompted, press ‘ or v to scroll to the channel that you want to use, then press CALL. A 7 is shown next to the currently selected channel/mode. To abort the call before it is answered, press PTT or SCAN. There will be audible beeps or a pop-up message to indicate that the call has been successful. NOTE: Calls made from the A key always override LBT mode ifit is enabled. NOTE: Ifthere are several calls programmed for this emergency contact, a chain call will be started. The transceiver proceeds with the next call following a pre-defined pause. Figure 8: Chain call numberolcalls totelnumberotcalls completed set up m the chem call Chaln Call (1 / 2) RX Base 25 countdown to next call Hangup Making a Selective call Ifyou want to speak with the operator at a particular station, make a Selective call to the address ofthat station. When the station receives the call, the transceiver sounds an alert tone to notify the operator. To make a Selective call: :1 Press CALL. SEva-Hm TRANSCEIVER DPERATOR GUIDE 47 OPERMIMG mE YRANSCEIVER CALLING NOTE: You may be prompted to register a self address on this control point for the HF network that you are using to make the call. NOTE: You may use a USB keyboard to initiate and control a call. Please refer to USB Keyboard support on page 4 for more information. The call type and address of the last call are shown at the top of the call screen. The filtered Call Log below this shows the latest instance of any call type made to or received from the addresses that contain the current input. > Sale: ve i. ‘ 32 1 Can Lug ‘IABZI I2,I7AM §I432I IZJDAM Optionsl IVIew Ifyou do not want to use the [IF network shown at the top right ofthe screen: - Press \— (Options). - Scroll to HF Networks, then press ‘— (Select). - Scroll to the [IF network that you want to use, then press OK. Press 1 or V to select the Selective call type ifit is not selected. NOTE: Ifyou want to test the quality ofthe channel before you make the actual call, hold CALL first. AB SENTRV-H W TRANSCEIVER OPERATOR GUIDE OPERATING THE TRANSCEIVER CALLING 2| Do one ofthe following: - To repeat the call to the last address used, press CALL. - To call a different station, enter the address. then press CALL. - To repeat or return (I call from the Call Log, press v to scroll to the call, press { or D to select your required call type, then press CALL. - To use an ALE addr s syntax in (In ALE/CALM IlF network, press _, (Vlew), scroll to ALE. press _, (Select), scroll to the syntax that you want to use, then press CALL. :1 If prompted, press A or v to scroll to the channel that you want to use, then press CALL. A ‘Z is shown next to the currently selected channel/mode. To abort the call before it is answered, press PTT or SCAN. There will be audible beeps or a pop-up message to indicate that the call has been successful, NOTE: IfSettings > Calling > General > LBT Mode is set to Enabled or Override allowed. you may be asked to make the call again ifthe channel is occupied NOTE: Ifyou are using the ALE/CALM call system, you can send an inlink message when a call is established. Refer to Sending an Inlink Message on page 1 for more information. SENTRv-Hm TRANSCEIVER OPEIA‘MR GUIDE 49 OPERATING THE TRANSCEIVER CALLING Making a Message call Ifyou want to send a text message to another station, make a Message call. You can: - enter a message at the time that you make a call - store up to 10 messages in User Data > Messages for later use - store messages in a contact as part of a [ire-programmed Message call To make a Message call: In Press CALL, NOTE: You may be prompted to register a self address on this control point for the HF network that you are using to make the call. NOTE: You may use a USB keyboard to initiate and control a call. Please refer to USB Keyboard support on page 4 for more information. The call type and address of the last call are shown at the top of the call screen. The filtered Call Log below this shows the latest instance of any call type made to or received from the addresses that contain the current input. u- Message Selcall "I:- Call Log man OptIonsI Close 50 SENTRV-H W TRANSCEIVER OPERATOR GUIDE OPERAIING THE TRANSCEIVER CALLING 2| Ifyou do not want to use the IIF network shown at the top right ofthe screen: - Press \— (Options). - Scroll to HF Networks, then press ‘— (Select). - Scroll to the [IF network that you want to use, then press OK. J Press 1 or V to select the Message call type ifit is not selected. I Do one ofthe following: - To repeat the call to the last address used, press CALL. - To call a different station, enter the address, then press CALL. - To repeat or return a call from the Call Log, press v to scroll to the call, press 4 or b to select your required call type, then press CALL. - To use an ALE address syntax in an ALE/CALM IIF network, press _, (View), scroll to ALE, pres, —I (Select), scroll to the syntax that you want to use, then press CALL. Enter Message (0/64) :1 Ifyou want to enter a message: - Hold # to select a different input language, if required. Ifyou are using a USB keyboard, press Ctrl+Shifl to select a different input language. - Stan typing the message. SEva-Hm TRANSCEIVER DPERATOR GUIDE 51 OPERATING THE TRANSCEIVER CALLING NOTE: Press OK to start a new line, if required. - Press \__ (Options), scroll to Call, then press \—— (Selec!) to add the message to the call. 3 Ifyou want to select a message from a list of stored messages: - Press ‘— (Optians), scroll to Stored, then press ‘— (Select). Messages (1/10) — Message 2 Message 3 Message 4 Message 5 Message 6 - Press A or v to scroll to the message that you want to use. NOTE: Ifyou want to view the message, press ‘— (Details) to view the message, then press ‘— (Close). - Press OK to select the message. - Edit the message, ifrequired. Enter Message‘ (20/51) ase call me be: . Close 52 SENTRV-H W TRANSCEIVER OPERATOR GUIDE OPERATING m2 TRANSCEIVER CALLING NOTE: A USB keyboard may be used to input the message, Please refer to Entering text with a USB keyboard on page 147 for more information. NOTE: Depending on the call system, privacy mode you are using and the characters you have typed, the length limit of the message varies. Please refer to the Reference Manual (Codan part number 15-04188-EN Issue 1 ) for details. NOTE: When the message's length limit is exceeded, the extra characters will be marked with grey colour and a strikethrongh. You can only send a message ifit is within the length limit. - Press \— [0ptions), scroll to Call, then pr .. \__(Select). 3 If you have (I GPS receiver connected, or your My Position setting is programmed, and you want to insert your current GPS position into the message: - Press \— [0ptions), scroll to Insert GPS, then pr .. ‘__(Select). NOTE: This menu option is only available providing there is space for twenty [20) characters in the message. NOTE: You can insert the GPS position in the middle ofthe typed message. SENTRV-Hw TRANSCEIVER OPERATOR GUIDE 53 OPERATING THE TRANSCEIVER CALLING 2| prrompted, press A or v to scroll to the channel that you want to use, then press CALL. A 7 is shown next to the currently selected channel/mode. To abort the call before it is answered, press PTT or SCAN. There will be audible beeps or II pop-up message to indicate that the call has been successful. NOTE: If Settings > Calling > General > LBT Mode is set to Enabled or Override allowed, you may be asked to make the call again ifthe channel is occupied. Related links: Entering text in afield on page 144 Entering text with a USB keyboard on page 147 Receiving a call Some calls that are addressed to your station are handled automatically by your transceiver. It will either respond automatically with the information requested in the call that it received (Get Position, Get Status, Channel Test, or ALE Sounding call). or receive the message (Message, Send Position, SMS or Web Message call). The remaining call types (Selective, Phone, and Emergency) sound an incoming call ringtone at your station You may have to switch off mute and change the mute type to be able to hear the conversation. Selective and Phone calls sound an incoming call ringtone that is similar to a telephone ringing An Emergency call sounds a lIee-haw alarm. To answer an incoming call: J Listen for (In incoming call tone. An incoming call pop-up shows infomIation on the type of call, the address ofthe caller, the time oftlIe call, and the channel used. SENTtw-Hw TRANSCEIVER OPERATOR GUIDE OPERAIING THE TRANSCEIVER CALLING Figure 9: Incoming call pop—up 1 234 1 Thu 9:43 AM CH 02 Ifthe call isn't answered before the callee hangs up, or after the period set in Settings > Calling > General > In Call Timeout has lapsed, the incoming call pop-up changes to the missed call pop-up. NOTE: Depending on the setup ofthe HF network used for the call and the digital voice and/or encryption options installed in the transceiver, the transceiver may switch automatically between analogue/digital voice and/or clear/secure signals. J Ifyou are receiving a Selective or Emergency call, answer the call by holding PTT and speaking side-on across the microphone in the handset. J Ifyou are receiving a Phone call, press PTT to accept the call, then release PTT. An automatic voice message is played that asks you to wait while the connection is made Do not speak during this time. NOTE: You may use a USB keyboard to accept and control a call. Please refer to USB Keyboard support on page 4 for more infomation. SENrnv-H" muscewen 05::an sum: 55 OPERAYING I'HE YRANSCEIVER CALLING Viewing missed calls If you do not answera call on your transceiver, a missed call pop-up is shown on the channel screen. The icon for the call type is shown with an exclamation mark. You can scroll through the missed call pop-up to acknowledge the missed calls. If the missed call pop-up is closed without acknowledging a missed call, a missed call icon for the call is shown in the status bar of the channel screen. If the missed call pop-up contains a short message that may be viewed fully in the popup, a missed call icon is not shown for this message in the status bar when you close the pop-up. A list of the possible missed call icons in the status bar is provided in Table 2. The details of any missed call may be viewed in the pop—up, or via the Call History or Call Log. NOTE: The incoming call pop-up changes to a missed call pop-up when the sending station hangs up the voice—type call, or when the period set in Settings > Calling > General > In Call Timeout has lapsed. Figure 10: Missed call pop-up for a single call call Received fl 5765 A 9:44AM Figure 11: Missed call pop-up for multiple calls 2 Calls Re(eived " 3765 t in 9:47 AM 34°52'48.5"5138... ' 56 SENTRV-H W TRANSCEIVER OPERATOR GUIDE OPERATING THE TRANSCEIVER CALLING Figure 12: Example of a missed call icon in the status bar of the channel/scanning screen ms Scanning SdBpV NOTE: Table 2: l1 Menu Received Get Status and Get Position calls, which do not present an incoming call pop-up, are not tracked as missed calls. Missed call icons that may be shown in the status bar of the channel/scanning screen and free tune screen Icon Description At least one missed or unread Emergency call exists [takes priority over all other missed calls) At least one missed Selective, Phone, ALL, ANY, Group Selective or Wildcard call exists (voice-type call) At least one unread Message, Send Position, SMS or Web Message call exists (received message-type call) At least one missed voice-type call and one unread message-type call exists SENYRv-HW TRANSCEIVER DPERATOR GUIDE 57 OPERATING THE TRANSCEIVER CALLING To view the details ofa missed call: :I Do one of the following: - In the missed eall pop-up, press A or v to scroll to the missed call that you want to view. - Press CALL, then press A or v to scroll to the missed call that you want to view in the Call Log. - Hold CALL, press k to select (1 (Call History), press # repeatedly until the Call History is filtered as Missed Calls, then press A or v to scroll to the missed call that you want to view. 3 Press \__ (Details). '4 Call In Delalls I} 1234 Selemve Thu man 2017 943 AM CH 01 USB 12,000 Selcall Close 3 Press V to scroll through the details of the missed call. 2 Press _, (Close). II Ifyou want to return a missed call, scroll to the call, press CALL, then continue with the call. 53 SENTRV-H W TRANSCEIVER OPERATOR GUIDE OPERATING THE TRANSCEIVER USING DlGITAL voxca Using digital voice Overview of digital voice options The Sentry-II transceiver provides 3 digital voice options: The Standard Digital (15-10624) Option offers digital voice with MIL/STANAG 2G Data. The Advanced Digital (15-10625) option offers digital voice with MIL/STANAG ZG Data, RMSO AES-256 Encryption, 1200 bps DV and Low Rate DV4 The AESZSé DV Eneryptor (15-10627) option offers AES-enerypted digital voice only. NOTE: Digital voice provided by the Standard Digital and Advanced Digital options is implemented by the RMSO module, and is incompatible with the digital voice provided by the AE5256 DV Encryptor option. NOTE: The RMSO module can be upgraded from TPS System Programmer or from a USB stick. See Upgrading the tranxceiver via a USB stick on page ”3 for more information. CAUTION: A permit from the Australian government is required if you want to upgrade the RMSO module with an export controlled version firmware package, which enables AESVZSG Encryption and Low Rate DV capabilities. Table 3: Digital voice options Sales option Encryptor Tab When the digital When the digital type Icon voice is inactive voice is active Standard Digital , gm: Analogue voice Digital voice (15-10624) W Clear data Clear data SENYRv-HW TRANSCEIVER OPERATOR GUIDE 59 OPERATING THE TRANSCE USING DIGITAL VOICE IVER Table 3: Digital voice options (cont) Sales option Encryptor Tab When the digital When the digital (15710625) Clear data type Icon voice is inactive voice is active Advanced AESJSG $35; Analogue voice Secure digital Digital W voice Secure data AESZSé DV Encryptor (15710627) AESJSG 2—56 Analogue voice Secure digital voice Related links: fill Using encryption on page 89 voice rats The digital voice rate sets the speed with which digital voice transmissions are sent. The digital voice rate is shown in status area 1 ofthe screen. Use the available digital voice rate in the first instance‘ then if good HF propagation conditions exist, a higher rate may be selected. NOTE: Receiving DV stations, which have both MELPe and TWELP vocoders available by default, automatically switch to the appropriate rate and vocoder type when a signal is detected Table 4: Digital voice rates Digital voice option Vocoder type Available voice rates (bifls) Standard Digital MELPe 2 400 TWELP 2 400 Advanced Digital MELPe 1200, 2400 60 SEva-Hw TRANSCEIVER OPERATOR GUIDE OPERAIING THE TRANSCEIVER USING DtGITAL VOICE Table 4: Digital voice rates (cont) Digital voice option Vncoder type Available voice rates (bifls) TWELP 600, 1200, 2400 AES-256 DV Encryptor , 1200, 2400 NOTE: 600 bit/s and 1200 bit/s rates are not available ifthc RMSO module has non-export controlled version firmware. Figure 13: Channel screen showing the digital voice rate ACUVe dear dtgtlal voice (in Tx) Active encrypted digilat votce (m Tx) TX Hi D USBW CH 01 1 0,000 TE 141003 2 M II digttat voice digitat votce data rate data rate Related links: Selecting the digital voice rate on page 65 Overview of digital voice options on page 59 ssurnv-HW Tmscswan OPERATOR sum: 31 OPERATING THE TRANSCEIVER USING DIGITAL VOICE Digital voice mute When any digital voice is active, you have the option of selecting voice mute (V), selcall mute (S), or digital voice mute (D). Digital voice mute enables only secure digital voice or clear digital voice to be processed through to the user when scanning is switched off or paused. Voice mute enables all clear and secure voice detected at your station to be heard by the user, and selcall mute blocks all signals except for calls specifically addressed to your station. Figure 14: Digital voice mute indicator Digllal voIce mule IndIcalor Active clear digital VDIce (in TX) Active encrypted dIgital voice (in Tx) Related links: Selecting digital voice mute on page 66 Switching the digital voice feature on or off NOTE: To switch the digital voice feature on, you must have at least one ofthe Standard Digital, Advanced Digital or AESZSé DV Encryptor options enabled, and have your voice encryptor set to the appropriate type. 62 SENTRV-H "t TRANSCEIVER OPERATOR GUIDE OPERAIING THE TRANSCEIVER USING DIGITAL VOICE To switch the digital voice feature on or off: :I Press BlSEC. Digital voice is toggled on or off. Figure 15: Channel screen showing on/off status for digital voice (without encryption) Digital Vmce (in Rx) Analogue voice (in Rx) Hiv Icon Ior digital voice digital voice data rate Figure 16: Channel screen showing transmit/receive status for digital voice (without encryption) Transmit (digital voice active) Receive (digital voice active) SEMer-Hm TRANSCEIVER OPERATOR GUIDE 63
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