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Introduction

Operation

................................................................................................................6

......................................................................................................................7

Front panel description ...........................................................................................7

Power/volume control .............................................................................7
Mic. Socket .............................................................................................7
Status LED's ...........................................................................................7
Display ....................................................................................................8
Key pad ..................................................................................................9

Channel change......................................................................................................10

Channel up/down ....................................................................................10
Direct channel entry ................................................................................10

Selective Calls - alerting other stations ...................................................................12

Selcall .....................................................................................................12
Sending a selcall.....................................................................................12
Receiving a selcall ..................................................................................14
All call .....................................................................................................14
Group call ...............................................................................................15
Sub group call .........................................................................................15
Beacon call .............................................................................................16
Sending a beacon call.............................................................................16
Receiving a beacon call ..........................................................................17
Sending an emergency selcall ................................................................18
Transceivers receiving an emergency call ..............................................18

Telcall’s - direct dial telephone calls ........................................................................19

Beacon call .............................................................................................19
Sending a Telcall.....................................................................................19
Preset dialling .........................................................................................19
Direct dialling ..........................................................................................21
Last number redial ..................................................................................23
Hang-up call............................................................................................23

Scanning channels .................................................................................................25

Halting scan ............................................................................................25
Selcall Scan ............................................................................................26
Signal strength scan (SSL scan) .............................................................26
Voice (syllabic) scan ...............................................................................26
Enabling channels into scan tables .........................................................27

Clarifier ...................................................................................................................28
Mute types ..............................................................................................................29

Audio (syllabic) mute...............................................................................29
Selcall mute ............................................................................................29
Signal strength mute ...............................................................................29

Mode selection........................................................................................................30

LSB mode ...............................................................................................30
USB mode ..............................................................................................30
AM mode ................................................................................................30
CW mode ................................................................................................30
AFSK mode ............................................................................................30

Alarm operation ......................................................................................................31

International marine radiotelephone two-tone alarm ...............................31
RFDS alarm ............................................................................................31
Testing the alarm ....................................................................................31
Sending an Alarm ...................................................................................31

Transmit frequency monitoring................................................................................32

BARRETT 950 HF TRANSCEIVER

PAGE 2

Содержание 950

Страница 1: ... 543373 www barrettcommunications com au Barrett 950 HF SSB Transceiver Operating and Installation Manual Head office European office ON VOL ON VOL ON VOL ON VOL BARRETT BARRETT MODE 8 MODE 8 SCRAM 7 SCRAM 7 0 SCAN 0 SCAN PWR PWR CLEAR CLEAR ALARM PROG END CHAN SEND SEL TEL MENU STAT RQ MUTE GPS RQ TUNE GPS TX FREQ 9 TX FREQ 9 CHAN 1 CHAN 1 CLAR 2 CLAR 2 FREQ 3 FREQ 3 4 CHAN 4 CHAN 5 CLAR 5 CLAR 6...

Страница 2: ...l 18 Telcall s direct dial telephone calls 19 Beacon call 19 Sending a Telcall 19 Preset dialling 19 Direct dialling 21 Last number redial 23 Hang up call 23 Scanning channels 25 Halting scan 25 Selcall Scan 26 Signal strength scan SSL scan 26 Voice syllabic scan 26 Enabling channels into scan tables 27 Clarifier 28 Mute types 29 Audio syllabic mute 29 Selcall mute 29 Signal strength mute 29 Mode ...

Страница 3: ...y options 51 Battery level 52 Protected menu 53 RF pre amplifier 53 Set Scan Rate 54 Set Scan Dwell 54 Set Signal Strength threshold Level SSL 54 External control options 55 Transmit over beep 56 Transmit timeout 56 Clarifier Limit 57 Set Selcall I D s 57 Set Selcall Pre amble 58 External alarm type 58 Scrambler hardware option enable 59 Silent mode 59 GPS type 60 500Hz Filter hardware option enab...

Страница 4: ...ction 95 Unpacking and inspection 95 Fixed station installations 96 Transceiver position 96 Operating convenience 96 Air circulation 96 Proximity of transceiver to antenna 96 Power supply 96 Voltage drop 97 Protection fuse 97 Antenna 97 912 Single Wire Broadband Dipoles 98 912 Multiwire Broadband Dipoles 100 913 series helical dipoles 102 915 wire dipole 104 Barrett 911 Automatic Antenna Tuner for...

Страница 5: ...4 910 automatic tuning mobile antenna 117 Marine Installations 121 General 121 Antenna selection 121 Antenna 121 Transceiver and tuner mounting 121 Ground earth system 121 Corrosion 122 Portable Operation 124 126 128 132 Accessory interface 132 Cable assembly 133 Universal mounting cradle 133 Fan unit 134 Side plate kits 135 19 rack mount conversion kit 136 Interference suppression kit 137 Auxilia...

Страница 6: ... speed transmit to receive switching a high stability frequency standard option and an efficient inbuilt cooling system option The Barrett 950 transceiver is available in a local desktop configuration for base station applications or in a remote control trunk mount configuration for mobile applications A combination of both of these configurations allows the 950 to be controlled from two positions...

Страница 7: ... the green Rx LED is illuminated when transmitting the red Tx LED is illuminated The operating mode of the transceiver is indicated by the remaining LED s i e USB LSB AM Power volume control Mic Socket Status LED s Status LED s Display Key pad Key pad Mic Socket USB AM LSB RX TX 950 ON VOL Power volume knob MODE 8 SCRAM 7 0 SCAN PWR CLEAR ALARM PROG END CHAN SEND SEL TEL MENU STAT RQ MUTE GPS RQ T...

Страница 8: ...nt status information of the transceiver including parameters unique to the channel in use parameters that affect all channels if scrambler option enabled channel normally shown Channel Number Channel usage label Automatic tuning antenna selected RF power output section low power shown Mute type audio mute shown Scan table this channel is assigned to scan table 2 Selcall format CCIR 493 format sel...

Страница 9: ...ogram channel Tune mode General scroll key Numeric key 1 General scroll key Numeric key 4 General scroll key Numeric key 2 General scroll key Numeric key 5 General scroll key Numeric key 3 General scroll key Numeric key 6 Numeric key 7 Menu access send request status Selcall history Alarm test Send selcall telcall ALE Send GPS position request Hang up telcall Send GPS position data Channel up Chan...

Страница 10: ... up down keys on the microphone have the same function as the channel up down keys on the keypad Channel up Channel down press the key enter the channel number required using the numeric keys channel range is from 1 to 9999 inclusive Note press the key again Display channel transmit frequency Enable disable scan Numeric key 0 Delete character or abort function High or low power select Future and c...

Страница 11: ...mple Note If the channel selected has not been previously programmed then the following is displayed Empty channels can only be accessed by direct channel selection and are not displayed when scrolling through channels BARRETT 950 HF TRANSCEIVER PAGE 11 ...

Страница 12: ...ric keys Note If you don t enter a new destination ID at this stage and proceed to the next step he default destination ID the last received selcall callers ID or the last selcall sent ID will be sent press the key wait for the selective call to be sent listen for revertive tone from the called station that indicates the call was successful Destination ID range is from 0000 to 9999 inclusive the d...

Страница 13: ...lcall to station 4321 example Note Last selcall sent was to 1234 Note If no selcall has been programmed on the channel in use an error message will be generated as indicated below BARRETT 950 HF TRANSCEIVER PAGE 13 ...

Страница 14: ...y key If the alarm times out the message Call received will be displayed periodically on the bottom line of the display as follows To cancel the Call received message either press the clear key or send a selcall back to the calling transceiver If the first digit of the incoming call s destination ID is the same as the unit s selcall ID and the last three digits of the destination ID are all zero e...

Страница 15: ... PTT or any key Once timed out the Call received message will not be displayed If the first three digits of the incoming call s destination ID are the same as the first three digits of the unit s selcall ID and the last digit of the destination ID is zero then an audible alarm is sounded the mute is opened and the displays shows the call as follows The alarm will sound for 5 seconds then leave the...

Страница 16: ...c is heard then continue press the key enter the desired selcall destination ID using the numeric keys xx99 for a 660 960 telephone interconnect where xx is the 660 960 I D press the key wait for the beacon call to be sent listen for the beacon revertive tones repeat steps until the channel with the best signal path is found Note The beacon revertive tones are different to a normal selcall reverti...

Страница 17: ... beacon call Note Last selcall sent was to 1234 When a transceiver receives a beacon request call it responds by transmitting the beacon call revertive tones The beacon request call is not saved in the selcall history buffer BARRETT 950 HF TRANSCEIVER PAGE 17 ...

Страница 18: ...e been programmed into the transceiver then the emergency call will be made on the current channel only but will continue to send emergency calls until the transceiver is switched off When a revertive from a receiving transceiver is heard pressing the PTT will exit the emergency call procedure and stay on the channel the revertive was heard on To activate the emergency call sequence Press Press ho...

Страница 19: ...station is indicative of the quality of communication that can be expected on the channel in use refer to Selcall selective call section Beacon call To access preset telephone numbers on the Barrett 660 960 a standard selcall is transmitted from the Barrett 950 The first two digits of the destination ID must be the same as the first two digits of the 660 960 self ID being called The second two dig...

Страница 20: ...Making a call to preset telephone number 58 via a 660 960 telephone interconnect whose ID is 6099 example Note Last selcall sent was to 1234 BARRETT 950 HF TRANSCEIVER PAGE 20 ...

Страница 21: ...enter the 660 960 destination ID using the numeric keys press the key enter the telephone number to dial using the numeric keys press the key when the telcall has finished sending listen for revertive tones that indicates the call was successful if the call was successful then wait for telephone connection to be made When the call has been answered the user can talk as normal after the call is com...

Страница 22: ...Making a direct dial call to telephone number 61894341700 via a 660 960 telephone interconnect whose ID is 6099 example Note Last selcall sent was to 1234 BARRETT 950 HF TRANSCEIVER PAGE 22 ...

Страница 23: ...re sent When a call has been completed the caller must by sending a hang up code to the Barrett 660 960 press the key enter the selcall ID of the 660 960 being called using the numeric keys press the key when the hang up selcall has completed transmitting listen for hang up revertive signal confirming the hang up was successful if not heard repeat the above procedure BARRETT 950 HF TRANSCEIVER PAG...

Страница 24: ...Hanging up call to a 660 960 with ID of 6099 example BARRETT 950 HF TRANSCEIVER PAGE 24 ...

Страница 25: ...d then press the scan key again to select it to start scan The Barrett 950 will halt scanning for the following reasons The channel has selcall enabled and a selcall signal is received Signal strength level mute is selected and a signal with a level greater than the pre set threshold level is received Audio syllabic mute is selected and a voice signal is detected Selecting scan table one and initi...

Страница 26: ...the transceiver will stop scanning and decode the selcall signal If the selcall was decoded for this transceiver the audio alarm will sound and the following will be displayed If the signal strength mute is active and a signal with a level greater than the pre set threshold is received the scan will halt Scan will remain halted while the signal level stays above the preset threshold Once the signa...

Страница 27: ...selecting the symbol corresponding to that scan table This symbol is displayed on the bottom line of the display in the 2nd character position Scan table 1 enabled for this channel Scan table 2 enabled for this channel Scan table 1 2 enabled for this channel No symbol in this position on the display indicates this channel will not be programmed for scan press the key to save this change BARRETT 95...

Страница 28: ...ne of the following keys or Pressing either of the above keys once will display the clarifier as follows Release the key pressed then press it again to begin adjusting the clarifier Holding the key down will accelerate the clarifier rate of change until maximum rate of change is achieved or the clarifier limit is reached To clear the clarifier value first bring up the clarifier then press the key ...

Страница 29: ...e is enabled the mute opens only when speech is detected When the selcall mute is enabled the mute opens after a selcall sent to the unit has been received and decoded successfully When the SSL mute is enabled the mute only opens when the received signal strength exceeds the nominated threshold level see menu functions Audio syllabic mute Selcall mute Signal strength mute set SSL level BARRETT 950...

Страница 30: ... AFSK The mode key will temporarily set the mode for a selected channel until the channel is changed or the transceiver is turned off to select the required mode Note If the 500Hz filter option is physically fitted and enabled in software it will automatically be selected when AFSK mode is selected BARRETT 950 HF TRANSCEIVER PAGE 30 ...

Страница 31: ...in two seconds and the programmed alarm will be audible from the speaker for less than 2 seconds To transmit the alarm select a channel programmed for alarm operation hold in the alarm key for a period greater than two seconds for longer than 2 seconds When an alarm transmit or test is attempted on a channel that has not been programmed for an alarm operation no alarm is generated and the display ...

Страница 32: ...ed the transceiver will transmit full power carrier on the channel selected at the of that channel When the tune key is released the display will indicate the forward and reverse power being delivered to the load antenna connected to the transceiver This giving an indication of the antenna VSWR The example below shows a load antenna with a poor VSWR indicated by a low forward power and the high re...

Страница 33: ...rambler option PCB is fitted and enabled in the programming section refer to protected programming menu Scrambler and also to the Barrett PC based programming software To turn the scrambler on example To turn the scrambler off example BARRETT 950 HF TRANSCEIVER PAGE 33 ...

Страница 34: ...to a different value dependant on customer requirements The lower power symbol will appear on the display Note If a channel was programmed for low power during channel programming the selection of high power using the method above is disabled To select high power if low power was previously selected example To select low power if high power was previously selected example BARRETT 950 HF TRANSCEIVE...

Страница 35: ... ID using the numeric keys press the key wait for the selective call to be sent wait for the remote transceiver unit to send back its position data or error message If the unit times out before the position is received an error message will also be displayed Requesting another transceivers GPS position Making a GPS request call to station with ID 4321 example BARRETT 950 HF TRANSCEIVER PAGE 35 ...

Страница 36: ...iver display on receipt of the reply from the remote transceiver If the transceiver being requested for GPS data is not fitted with a GPS receiver the following message will be displayed on the requesting transceiver display upon receipt of the reply from the remote transceiver If no response to a GPS request is forthcoming from the remote transceiver after a fixed time period the following messag...

Страница 37: ...d then continue press the key enter the desired destination ID using the numeric keys press the key wait for the selective call to be sent the remote transceiver unit will send revertive tones confirming its receipt of your GPS position data If you do not hear the revertive tone try again or try another channel and try again transceiver is loading data from its GPS receiver BARRETT 950 HF TRANSCEI...

Страница 38: ... its GPS data If the transceiver is fitted with a GPS receiver but cannot retrieve GPS data from it due to lack of satellite data etc a timeout occurs the following message will be displayed BARRETT 950 HF TRANSCEIVER PAGE 38 ...

Страница 39: ... display shows the call as follows This display is held for 3 seconds then the message received is displayed The alarm will sound for thirty seconds and then time out To stop the alarm before the time out and acknowledge the call activate the PTT or press any other key If the alarm times out the display will periodically flash the message on the bottom line of the display To clear the message pres...

Страница 40: ... where a Barrett 950 has sent out a status request and the unit called has responded by sending back the status bytes When the Barrett 950 receives a status request the call is not acknowledged to the user but a status revert call is automatically sent back to the calling unit select the channel on which to send the status request listen for traffic on that channel if no traffic is heard then cont...

Страница 41: ...layed When the transceiver requested for status has completed it s return status selcall and it is received successfully the status information will be displayed as follows to step through the status display frames faster press any key Displays version of software fitted in remote transceiver BARRETT 950 HF TRANSCEIVER PAGE 41 ...

Страница 42: ...ceiver and the forward power transmitted by the remote transceiver when sending the status revert selcall Displays the reverse power of the antenna connected to the remote transceiver If the transceiver being requested for a status does not respond the display will show the following message after a timeout period BARRETT 950 HF TRANSCEIVER PAGE 42 ...

Страница 43: ...istory If there is no selcall history then the following message will appear on the display To abort selcall history mode activate PTT or press the clear key If there is selcall history the top line of the display shows the channel the call was received on the selcall ID of the calling unit and the history buffer count To make a call when scrolling through the selcall history buffer perform the fo...

Страница 44: ...Pagecalls are displayed as follows to display pagecall message Statcalls are displayed as follows to display statcall information Etc BARRETT 950 HF TRANSCEIVER PAGE 44 ...

Страница 45: ...cy increment required then use the frequency up or down key to tune the receiver at the increment selected Tune receiver from 10000 000 kHz to 10500 000 kHz example or to position cursor under digit to change until 5 is displayed in the digit position above the cursor When you have finished using the tuning receiver press the key to return to the previous operating channel Entering tuning receiver...

Страница 46: ...r the tuning receiver mode then hold down until the following is displayed Enter a new frequency using the numeric keys to set the first scan limit boundary example below shows Scan Limit 1 set to 12 MHz until display below appears Note The frequency of 12000 000 may not appear as shown above this indicates the last scan limit boundary programmed was 12000 kHz which will not always be the case BAR...

Страница 47: ...will select scan increments of 100 Hz the display will revert to the tuning receiver display will commence scanning using the parameters set above The transceiver will halt scanning for the following reasons Signal Strength Level SSL mute is selected and a signal with a level greater than the pre set threshold is received Audio syllabic mute is selected and a voice signal is detected BARRETT 950 H...

Страница 48: ...ionally required by PC programming Use the following sequences to display or change parameters of items in the menu section or to select the menu item required to view or edit enters the menu item for editing or to select the parameter required to save the parameter to exit out of the menu system If the transceiver is left in menu mode the transceiver will after a preset time sound an audible alar...

Страница 49: ... reduce repetitive impulse noise eg vehicle ignition noise selects noise blanker on selects noise blanker off selects display back light intensity level 1 selects display back light intensity level 2 selects display back light intensity level 3 Noise blanker Display back light levels BARRETT 950 HF TRANSCEIVER PAGE 49 ...

Страница 50: ... back light time out time of 5 seconds from last key press selects a display back light time out time of 30 seconds from last key press selects display back light always on selects display back light always off BARRETT 950 HF TRANSCEIVER PAGE 50 ...

Страница 51: ...lay of signal strength level in receive and the channel usage information in transmit selects the display of channel usage information in receive and the forward power level in transmit selects the display of signal strength level in receive and forward power level in transmit BARRETT 950 HF TRANSCEIVER PAGE 51 ...

Страница 52: ...Battery level the transmit voltage is the voltage recorded during the last transmit cycle this giving a indication of the batteries capacity under load BARRETT 950 HF TRANSCEIVER PAGE 52 ...

Страница 53: ...anges to more critical parameters during normal operation of the transceiver If no access to protected menus is to be allowed to operators the protected menus can be barred using the Barrett PC based programming system Selects the RF pre amplifier on or off selects RF Pre amplifier on selects RF Pre amplifier off In later versions of 900 series transceivers this function has been removed and the R...

Страница 54: ...ed by signal strength level if signal strength level mute is set or voice activity if audio mute is set The dwell time can be set from 1 to 10 seconds example selects 5 seconds select the level at which scan stop is activated during SSL scan The level is set by adjusting the number of signal strength arrows on the display example selects 5 signal strength arrows Note setting this to high will prev...

Страница 55: ... use of a Barrett 511 911 Automatic Antenna Tuner enables the use of Barrett 975 series linear amplifiers this feature enables the use of the optional second antenna socket that can be fitted to the rear of the 950 transceiver When this option is selected and a jumper on the PA PCB is fitted as described in the 950 technical manual the transceiver receive input and transmitter output is directed t...

Страница 56: ...d transmitting selects transmit over beep on selects transmit over beep off When this feature is enabled the 950 transceiver will disable the transmitter if the PTT push to talk button on the microphone is held on for more than 1 5 minutes i e if the microphone is inadvertently jammed under a seat Releasing the PTT will reset the transmitter selects transmit timeout on selects transmit timeout off...

Страница 57: ...at programmed The second is used as the self ID on channels programmed for use with RDD Radphone Direct Dial an Australian telephone interconnected HF service enter the selcall self ID1 using the numeric keys for use on channels programmed for Barrett standard and CCIR 493 WA2 in Australia format selcall enter the selcall self ID2 using the numeric keys for use on channels programmed for Australia...

Страница 58: ...time set to 5 seconds selects which type of alarm signal is generated on the External Alarm pin 17 on the auxiliary connector selects latched alarm the alarm output will be continuously active for 30 seconds and then turn off selects the pulsed alarm the alarm will turn on after 15 seconds and remain on for 15 seconds then will turn off This sequence will occur unless the PTT is activated or the c...

Страница 59: ...er hardware when fitted selects scrambler hardware PCB option fitted selects scrambler hardware PCB option not fitted This option enables or disables any audible annunciation tones associated with front panel key operation tones enabled tones disabled BARRETT 950 HF TRANSCEIVER PAGE 59 ...

Страница 60: ...ut are disabled and not available Note the external GPS receiver must be outputting the NMEA 0183 RMC sentence to be compatible with the Barrett 950 selects internal GPS receiver if the internal GPS receiver is installed selects external GPS receiver if an external GPS receiver is connected to the NMEA port on the transceiver s auxiliary connector select if 500Hz filter option is fitted to the tra...

Страница 61: ...ed at a time after the last key press specified by the scan resume time selected The example below will cause the 950 transceiver to resume scanning 1 minute after the last key press The channel up down buttons on the microphone can be enabled or disabled using this function microphone up down buttons enabled microphone up down buttons disabled BARRETT 950 HF TRANSCEIVER PAGE 61 ...

Страница 62: ...ve programming information from the Barrett PC based 900 series transceiver programming system The following steps are necessary to copy the configuration of one 950 transceiver to another Fit the DB25 to DB25 cloning cable Barrett P N BCA90024 to the auxiliary connector on each transceiver Switch on both transceivers Picture of two transceivers connected together with cloning lead BARRETT 950 HF ...

Страница 63: ...On the master transceiver transceiver containing the information to be cloned select the cloning menu Alternating with BARRETT 950 HF TRANSCEIVER PAGE 63 ...

Страница 64: ...dard and CCIR 493 WA2 in Australia format selcall Enter selcall self ID2 using the numeric keys for use on channels programmed for Australian RDD format selcall Note the self ID must not be set to X000 XX00 or XXX0 as these are reserved selcall numbers for all call group call or sub group call On the slave transceiver transceiver to receive information BARRETT 950 HF TRANSCEIVER PAGE 64 ...

Страница 65: ...llowing If this is the case the cable connection should be checked and the cloning procedure repeated Refer to the operating manual supplied with the Barrett PC based programming software Programming a 950 transceiver using the Barrett PC based programming software P N BCA90035 BARRETT 950 HF TRANSCEIVER PAGE 65 ...

Страница 66: ... a remote receiver through the 600 ohm balanced audio input port on pin 11 and 24 of the accessory connector on the rear of the 950 transceiver selects local receive and remote transmit i e the transceiver receives through the local antenna but the transmitter is disabled and transmit audio is output to modulate a remote transmitter through the 600 ohm balanced audio output port on pin 12 and 25 o...

Страница 67: ...the mark and space frequencies of the selcall decoder The test checks that the selcall decoder output is correct with respect to the mark and space frequencies audio mute test an internally generated signal is generated the test checks that the audio mute opens in response to this signal receiver SSL mute test an internally generated signal is generated in the receiver The test checks that the SSL...

Страница 68: ...the auxiliary connector with pins 2 and 3 connected together This test checks that the RS 232 port is operational VCO lock test checks that the VCO remains in lock to a channel frequency of 30 5MHz If the above tests pass the following is displayed If the tests fail the following is displayed BARRETT 950 HF TRANSCEIVER PAGE 68 ...

Страница 69: ... until a PIN number is entered correctly within 10 attempts If the correct PIN number is not entered within 10 attempts the transceiver can only be re enabled for normal operation by using the Barrett PC based programming software Select the channel you suspect the transceiver to be operating on then select the protected menu item below enter the selcall self ID or the transceiver to be locked out...

Страница 70: ...rrett PC based programming software Note To save time entering codes ten times before unlocking Enter 0000 0000 the transceiver will immediately display contact dealer On the transceiver receiving the lock out disable selcall the following will be displayed You can now enter the pin number to unlock the transceiver If you input the wrong PIN number more than 10 times the following is displayed BAR...

Страница 71: ...nnel to be programmed Operation section direct channel change press the programming key enter the receive frequency using the numeric keys press the programming key enter the transmit frequency using the numeric keys press the programming key select first page of channel parameters see setting first page of channel parameters below press the programming key select second page of channel parameters...

Страница 72: ... selcall is selected on the channel being programmed Use the scan key to select the scan table required Select the symbol corresponding to the scan table required This symbol is displayed on the bottom line of the display in the 2nd character position Scan table 1 enabled for this channel Scan table 2 enabled for this channel Scan table 1 2 enabled for this channel No symbol displayed in this posi...

Страница 73: ...on and can be programmed in the factory to customer requirements to any two tone alarm combination if the option is not programmed this alarm defaults to the RFDS alarm The tune key toggles between Antenna socket 1 ANT 1 and Antenna socket 2 ANT2 This will only be available if the optional second antenna socket is physically fitted and enabled using Barrett PC based programming software Use the mo...

Страница 74: ...the channel into scan table one low power on transmit RFDS alarm and label BARRETT The example assumes that channel 101 was already selected by direct channel selection see Operation section direct channel change and was not previously programmed to enable selcall BARRETT 950 HF TRANSCEIVER PAGE 74 ...

Страница 75: ... to enable scan table one until R is shown to select RFDS alarm to select low power or to select channel label until LSB is displayed BARRETT 950 HF TRANSCEIVER PAGE 75 ...

Страница 76: ... channel to connect on when commanded by its operator to communicate with another station The Barrett ALE controller s powerful memory stores up to 10 000 sets of LQA information 100 channel configurations 20 self address configurations and 100 other address configurations The ALE network parameters are determined by a network supervisor this person programs all the transceivers in the network wit...

Страница 77: ...ls receive sounding s and transmit soundings if soundings are enabled on your transceiver Whilst ALE scanning the following messages may be displayed occurs when your station receives and ALE sounding from another station in the network occurs when your station transmits a sounding your station would have sounding enabled Commence ALE scanning BARRETT 950 HF TRANSCEIVER PAGE 77 ...

Страница 78: ... from the calling station the link is successful an audible alarm will sound after which you can start communication with the station that called you the link was unsuccessful you are linked to another station and you attempted to change channels Receiving an ALE call directed to your transceiver BARRETT 950 HF TRANSCEIVER PAGE 78 ...

Страница 79: ...vious two steps only occur if the channel is also programmed for CCIR 493 based selective call use if not programmed for selective call the station list display below is selected by the first key press above or to scroll through the station address list BARRETT 950 HF TRANSCEIVER PAGE 79 ...

Страница 80: ...self ID the ALE call sequence has commenced you are waiting for a response the called station the called station has replied and you are acknowledging you now have a link established with the station you are calling Either Or BARRETT 950 HF TRANSCEIVER PAGE 80 ...

Страница 81: ...ink attempt failed when selecting a self ID you selected a self ID that is not programmed a null ID no channels are programmed for the station you are attempting to call the station you called rejected the link attempt BARRETT 950 HF TRANSCEIVER PAGE 81 ...

Страница 82: ... for CCIR 493 based selective call use if not programmed for selective call the station list display below is selected by the first key press above or to scroll through the station address list Making an telephone call via an ALE equipped Barrett 960 telephone interconnect Note BARRETT 950 HF TRANSCEIVER PAGE 82 ...

Страница 83: ...or select a new self ID to this point if using the default self ID the ALE call sequence has commenced Either Or BARRETT 950 HF TRANSCEIVER PAGE 83 ...

Страница 84: ... are calling The following error messages may be displayed the link attempt failed when selecting a self ID you selected a self ID that is not programmed a null ID no channels are programmed for the station you are attempting to call the station you called rejected the link attempt BARRETT 950 HF TRANSCEIVER PAGE 84 ...

Страница 85: ...canning if you were in scanning before the ALE link If the station you are linked to closes the link the following will be displayed remote station closes link your station resumes ALE scanning if you were in scanning before the ALE link BARRETT 950 HF TRANSCEIVER PAGE 85 ...

Страница 86: ... If the ALE option has not previously been enabled the following will be displayed Pressing the menu key will enable the ALE controller The next time you enter the ALE section the first display will be as indicated below This will now appear when ever you enter the ALE menu as it is the first menu item ALE menus BARRETT 950 HF TRANSCEIVER PAGE 86 ...

Страница 87: ...ate its in formation on network link analysis For correct ALE operation sounding should be left on all the time Note If ALE silent mode is selected on the sounding On Off option setting is ignored and your station does not send or receive ALE sounding signals selects sounding on selects sounding off The ALE select Sounds Off Or Sounds On on a channel basis determined by the way the channel was pro...

Страница 88: ...y table within the ALE processor The decay can be disabled or set to between 1 and 8 hours Switching the sounding off and setting a decay time of two hours would result in the record of a perfect channel 100 channel quality decaying to an unusable channel 0 channel quality over a period of two hours BARRETT 950 HF TRANSCEIVER PAGE 88 ...

Страница 89: ...nds these signals sequentially The total length of the sounding transmission is the product of the sounding signal length and the number of channels If the sounding signal length is set to 10 seconds and the scan group contains seven channels the ALE station takes 70 seconds to complete sounding transmission The default sounding signal length is the minimum setting under five seconds The maximum s...

Страница 90: ...BER value of a transmitted ALE word the greater the error A BER value of 0 indicates perfect reception of an ALE word The maximum BER value of 48 indicates that all bits of the ALE word were bad If a received ALE word contains more errors than the BER Threshold the ALE processor rejects the word This option sets the value of the Golay threshold used in Golay testing Golay testing is an additional ...

Страница 91: ...returns to scan mode This option controls the number of times the ALE station tries to establish an ALE link using each channel in turn form the scan group The limit can be set between 0 and 98 If 99 is selected this is interpreted as no limit On each selected channel two attempts are made to establish a link before going onto the next preferred channel where two more attempts are made and so on u...

Страница 92: ...h 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 different averaging formulas available as indicated below Averaging formula 1 Averaging formula 2 Averaging formula 3 Replace the old values with t...

Страница 93: ...nt mode the ALE controller does not respond to incoming ALE calls and does not send or receive sounding signals even if sounding is switched on Note You can still make ALE calls in this mode The ALE will operate as described in the mode above but only on channels programmed for Tx disable mode silent mode by the Barrett ALE PC based fill program BARRETT 950 HF TRANSCEIVER PAGE 93 ...

Страница 94: ... enable the 950 transceiver to accept network data from the Barrett PC based ALE fill program Refer to the Barrett ALE fill software manual for details ALE disable This option will disable the ALE option BARRETT 950 HF TRANSCEIVER PAGE 94 ...

Страница 95: ... technical adjustment is required for the equipment to operate correctly Note Some equipment has specific instructions supplied with it When this occurs those instructions over ride the general guidance of this handbook and must be followed in detail When unpacking the transceiver check the contents against the packing note provided Before discarding the carton check that all accessories have been...

Страница 96: ...pplies and electrical equipment 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 BCA90014 In fixed station installations where 240 220 120 115 VAC mains power is available a Barrett 922 power supply should be used I...

Страница 97: ...ot 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 In line 3AG glass fuses are not suitable An HRC fuse cartridge rated a 25 amps 240v Barrett P N BCA90018 i...

Страница 98: ...configuration the recommended mast height is 15 metres and at this height the 2 metre stub masts are each installed at a minimum of 19 metres from the mast base In locations with limited space the antenna can be mounted with the ends past the load resistors drooped down towards the ground White nylon supports located just past the load resistors are provided to attach halyards for this configurati...

Страница 99: ...tions ensure the antenna is as far from sources of electrical interference as possible and in a position that makes it impossible for the antenna to come in contact with high voltage overhead mains wiring 125 watt standard single wire broadband dipole in an inverted V 125 watt standard single wire broadband dipole in a limited space configuration BARRETT 950 HF TRANSCEIVER PAGE 99 ...

Страница 100: ...2 metres and the recommended mast height is 15 metres In the inverted V configuration the recommended mast height is 15 metres and at this height the 2 metre stub masts are each installed at a minimum of 9 metres from the mast base In this configuration the mast must have an offset or out rigger bracket at least 0 8 metres long to hold the antenna away from the mast Support towers may be either la...

Страница 101: ...gs below the antenna As with all antenna installations ensure the antenna is as far from sources of electrical interference as possible and in a position that makes it impossible for the antenna to come in contact with high voltage overhead mains wiring 125 500 watt multi wire broadband dipole in an inverted V configuration 1000 watt Multi Wire Broadband Dipole BARRETT 950 HF TRANSCEIVER PAGE 101 ...

Страница 102: ...ed for the antenna is as far from any source of electrical interference as possible and that under no circumstances it can come in contact with high tension power lines After mounting the helical dipole hub on the mounting pole remove the front circular cover pass the coaxial cable through the hole at the bottom of the hub Screw the UHF connector into the balun Now screw the helical dipole element...

Страница 103: ...r at what frequency the best VSWR is obtained If this occurs at a frequency below the required frequency then the tips will have to be shortened on the pair of elements corresponding to that frequency If the best VSWR occurs on a frequency higher than the required frequency then the tips will have to be lengthened Adjust both ends by an equal amount and repeat the above sequence until an optimum V...

Страница 104: ...ators of a half wave wire dipole is 142 frequency of dipole in MHz metres To this an allowance should be made for extra insulators and halyards i e a 3 7MHz dipole length between the insulators 142 3 7 38 38 metres Wire dipoles supplied by Barrett Communications are pre cut to a specified frequency but have adjustable ends These adjustable ends allow fine tuning for optimum VSWR during installatio...

Страница 105: ...rop the dipole and adjust both ends by an equal amount and repeat the above sequence until an optimum VSWR is obtained If a tunable transmitter is not available use a method of trial and error shortening or lengthening the dipole ends a little at a time until optimum VSWR is obtained Remember to always adjust each end by the same amount as the other every time Several single frequency wire dipoles...

Страница 106: ... possibility of accidental contact The transceiver should be mounted in a suitable position allowing easy operator access The antenna tuner should be mounted preferably out of the weather and as close to the ground earth point as possible The interconnect cable supplied with the antenna tuner should be routed away from other cables back to the transceiver and connected as indicated in the diagram ...

Страница 107: ...l wires each radial being at least 5 metres in length When radials or mesh are used at ground level it is recommended that they be buried a few centimetres below the surface After mechanical installation is complete select the highest frequency to be used on the transceiver A directional watt meter such as a bird model 43 should be inserted in the coaxial transmission line between the transceiver ...

Страница 108: ...d only the control head need be mounted convenient to the operator The transceiver may be mounted under a seat in the luggage compartment or any other out of the way place within the vehicle which allows for sufficient cooling All equipment should be positioned in such a way that convenient access for maintenance is provided It must be assumed that the vehicle will be used on rough roads and in ma...

Страница 109: ...ody are run separately from the antenna coax cables and power cables By moving these cables apart you reduce the risk of RF feedback getting into the control cable which can cause problems with the transceiver Fit a suitable HRC cartridge fuse Barrett P N BCA90018 as near as practicable to the battery connection in the positive red wire Route the power cable away from high tension ignition wiring ...

Страница 110: ... must provide a low resistance electrical path to the main vehicle metallic structure Antenna feed cables should be run as far as possible away from other vehicle wiring and especially away from ignition high tension wiring Where passing through body panels or internal bulkheads grommets must be used to protect the cables Water proof connectors must be used when they are outside the vehicle After ...

Страница 111: ...ources of noise must be identified Ideally there should be no difference between background noise in the receiver with motor and accessories on and that with motor and accessories off If a detectable difference does exist turn off all accessories one by one until a change in noise results Continue noting each contributing unit until there is no detectable difference from the all off noise level Fo...

Страница 112: ...nd well bonded to the coil body The charging system circuit consisting of either generator or alternator and a regulator may also be split into three parts A low pass filter such as that supplied in the interference suppression kit or similar should be fitted to the main battery lead at the alternator The filter must be rated for the maximum current available from the charging system The earth lug...

Страница 113: ... in identification Petrol engine ignition noise and contact breaker noise is a sharp staccato plop varying with engine speed It is only with this class of noise that the impulse noise limiter incorporated within some transceivers is effective Noise from other sources generally has a more mushy sound That from the alternator generator may only be troublesome over a limited range of engine speed and...

Страница 114: ...bonded to the chassis of the vehicle via a very low resistance path ie clean all joints to bare metal and use braid earth straps if any non metal joints are encountered Use only good quality coaxial cable and water proof UHF connectors such as those supplied by Barrett Communications When running the coaxial cable from the antenna to the transceiver avoid sharp corners and heat such as that genera...

Страница 115: ...hen too much capacity is already present this is frequently encountered when mounting the antenna too low on a vehicle bumper bar or when mounting close to bodywork as in cab over type vehicles In this case either re site the antenna further away or add extra tuning rings to the frequency sections affected until a suitable VSWR is obtained Note Truck cab over installations usually produce distorte...

Страница 116: ...he following frequencies Channel 1 4030 kHz Channel 2 4760 kHz Channel 3 5190 kHz Channel 4 5254 kHz Channel 5 7180 kHz Channel 6 8199 kHz Channel 7 9134 kHz Channel 8 9145 kHz Channel 9 10567 kHz Channel 10 14567 kHz When using Channel 1 frequency 4030kHz the jumper lead should be removed from the bottom antenna socket and stored in the vehicle On all other channels the jumper lead is required Fo...

Страница 117: ...ing base a further 20 30 degrees clockwise while holding the top of the ABS antenna body with a free hand Failure to fit the whip assembly on the ABS antenna body correctly in accordance with the above instructions may lead to eventual failure of the whip mounting stud The antenna is supplied with a pre terminated 1 5 metre cable tail This should be routed into either the engine compartment or boo...

Страница 118: ...nied by a series of low pitched beeps at any point the 910 has failed tune Check all cables are correctly connected check the earth cable from the base of the 910 has a good connection to the vehicle body not chassis or battery check the whip fitted is not faulty or incorrect and move the vehicle if the 910 is close to any metal fences buildings etc The 910 tunes on whip current not SWR If the tra...

Страница 119: ...al work as indicated in the diagrams FAILURE TO MAINTAIN THESE CLEARANCES WILL NOT ONLY REDUCE THE EFFICIENCY OF THE 910 ANTENNA BUT MAY ALSO LEAD TO INTERNAL RF ARCING AND FAILURE 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 Important Please...

Страница 120: ...uning Mobile Antenna is designed to with stand vibration to military type specifications on tyred vehicles some mounting positions on large prime movers particularly front mounted bull bars are subject to vibration that far exceeds these type of specifications Do not mount the 910 Antenna in positions such as these as damage to the antenna may result For operation under low clearances use the supp...

Страница 121: ...reater than 10 metres and less than 35 metres A whip antenna is generally used on small to medium sized power vessels There are different length whips to suit the vessel length Select a suitable position in the vessel to mount the transceiver It should be a position that is out of the weather and easily accessible to the operator whilst as close as practical to the 13 8V DC power source Mount the ...

Страница 122: ...should be as short as possible and use copper strap at least 50mm wide wider if available Consideration must always be given to the problem of electrolysis Severe structural damage may occur if electrolysis is present All connections in marine situations are subject to corrosion and oxidation To minimise this all joints should be cleaned and have silicon grease applied before assembly Under severe...

Страница 123: ... the PCB mounted tuned LED should be illuminated Now select the lowest desired frequency on the transceiver and repeat the above procedure The result should be the same except that the tune cycle may take somewhat longer If the above procedure does not give the results as indicated check that the antenna length and connections are correct and re check all ground earth connections Electrical checko...

Страница 124: ...emporary base station Tactical rapid deploy tuned dipole TRANSCEIVER 12V BATTERY POWER SUPPLY 3 M ETERS 16 M ETERS COAXIAL FEEDER TO TRANSCEIVER EARTH STAKE WITH CROCODILE CLIP FROM ANTENNA CLIPPED TO IT HANG COUPLING SECTION EITHER VERTICALLY OR AT AN ANGLE USING A NYLON HALYARD BALUN INSULATOR 8 METERS NYLON HALYARD NYLON LEADTHROUGH LOAD CASE NYLON HALYARD INSULATING CABLE BOBIN INSULATING CABL...

Страница 125: ...Sloping Configuration Inverted V Configuration BARRETT 950 HF TRANSCEIVER PAGE 125 ...

Страница 126: ...C from Linear Amp Ext 0 10V NMEA 9 Auxiliary PTT In Auxiliary PTT input Low to activate PTT 10 Scan Stop Scanstop input from external modem Low to stop scan 11 Bal Tx Audio In Balanced external Tx audio input 600 Ohms 0dBm 12 Bal Rx Audio Out Balanced un muted Rx audio output 600 Ohms 0dBm 13 Ground Ground 0V 14 Ant 0 Pre amp on Channel no output Octal bit 0 910 Active low 15 Ant 1 Channel no outp...

Страница 127: ...external Tx audio input 600 Ohms 0dBm 25 Bal Rx Audio Out Balanced un muted Rx audio output 600 Ohms 0dBm Note 1 Pin 8 and Pin 20 External GPS input is selected using a menu function or set during programming when the software option required is fitted Note 2 These outputs provide channel information for use with antenna select units such as the BARRETT 916 The outputs are octal coded 0 to FF repr...

Страница 128: ...m Because ground wave follows the contours of the earth it is affected by the type of terrain it passes over Ground wave is rapidly reduced in level when it passes over heavily forested areas or mountainous terrain Sky wave is used to communicate reliably over medium to long distances up to 3 000km Whilst the nature of sky wave propagation means it is not affected by the type of terrain as in grou...

Страница 129: ...Possible optimum working frequency is 3 MHz A to C Possible optimum working frequency is between 5 7 MHz A to D Possible optimum working frequency is between 9 12 MHz EARTH IONOSPHERE 950 ON VOL ON VOL BARRETT 950 ON VOL ON VOL BARRETT 950 ON VOL ON VOL BARRETT 950 ON VOL ON VOL BARRETT A B C D 20km 800km 2000km EARTH IONOSPHERE 950 ON VOL ON VOL BARRETT 950 ON VOL ON VOL BARRETT 950 ON VOL ON VOL...

Страница 130: ...eric conditions prevailing If he does not hear this revertive call or it is very weak he tries on another channel until a revertive call of a satisfactory signal strength is heard Refer to Selcall selective call section of this manual for full details on Beacon call operation As a rule the higher the sun the higher the frequency that should be used This means that you will generally use a low freq...

Страница 131: ...ystem will greatly affect the communications quality you will obtain Refer to the installation section of this manual for details Your local Barrett representative will be able to assist with your system configuration and or installation Communications on any HF SSB transceiver will sound different to that on a VHF Very High Frequency radio or UHF Ultra High Frequency radio or telephone This is be...

Страница 132: ...PS receiver whilst still giving access for the use of CW keys external speakers and external alarms The diagram below describes the pin functions of the connectors used on the accessory interface Headphones Automatic antennas or tuners 510 910 511 911 CW Key 13VDC 2Amps max Ground EXT GPS NMEA HIGH EXT GPS NMEA LOW Securing Screws Securing Screws EXT SPEAKER CW KEY EXT ALM N O EXT ALM COMMON BARRE...

Страница 133: ...ount Barrett 900 series products in vehicles or vessels The cradle kit comprises the following parts 4 x M4 x 14 countersunk screws items marked 1 in diagram 4 x Nylon capstans items marked 2 in diagram 1 x Cradle assembly c w catches Assemble the cradle as per the diagram below Cable assembly Barrett P N BCA90021 Universal mounting cradle Barrett P N BCA90001 A B BARRETT 950 HF TRANSCEIVER PAGE 1...

Страница 134: ...he slots provided in the heatsink and the left hand side plate Remove the screw on the PA transistor nearest to the pads used to solder the fan thermostatic switch to TH2 Replace this screw with the fan thermostatic switch tab installed Solder the wires from the fan thermostatic switch to the pads provided at TH2 on the PA PCB Kit comprises 1 x fan PCB 1 x fan thermostatic switch Fan unit Barrett ...

Страница 135: ...washers placed under each screw BCA90025 kit comprises 8 x M4 x 6 pan head screws Items marked 1 in diagram 8 x M4 nylon washers Items marked 2 in diagram 2 x 2 unit side plates Items marked 3 in diagram BCA90026 kit comprises 12 x M4 x 6 pan head screws Items marked 1 in diagram 12 x M4 nylon washers Items marked 2 in diagram 2 x 3 unit side plates Items marked 3 in diagram BCA90027 kit comprises...

Страница 136: ...y from the rear making sure the front panel mates into the milled cut out in the rear of the 19 front panel Secure the transceiver in place with the remaining four M4 x 12 pan head screws items marked 1 on diagram Kit comprises 1 x left hand side plate 1 x right hand side plate MW 08440 1 x 19 front panel MW 08095 2 x D handles NB 04597 10 x M4 x 6 pan head phillips screws marked 2 on diagram NB 0...

Страница 137: ...separated from any other wiring and should be placed as close to the metal block of the motor as practical to reduce radiation of any RF noise Ensure that the wire from the distributor points to the ignition coil is as short as possible and that it is not loomed together with any other cables If the wire length exceeds 300mm it should be replaced by a screened wire This may be coaxial cable with t...

Страница 138: ...ked to ensure they do not contribute RF noise They can be suppressed using MAR ACE filters or capacitors and the installation method given in the MAR ACE application note All metal objects on a vehicle or vessel should be bonded to one common earth with reliable connections Ensure that the body of a vehicle is connected to chassis by passing any rubber mounts that may be present Heavy duty earth s...

Страница 139: ...Note Specifications information and drawings in this manual are subject to change without notice BARRETT 950 HF TRANSCEIVER PAGE 139 ...

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