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RELM/BK Radio

INTRODUCTION

This section contains information concerning the operational procedures

for BK Radio DMH APCO Project 25 digital mobile radios. To meet

backwards compatibility as defined by the APCO Project 25 standard, the

DMH digital mobile radio provides users the ability to interoperate with

narrow or wide band analog channels as well as digital systems. Please

take a moment to read the information in this manual so you can get

optimum performance from your new radio.

FCC REQUIREMENTS

Your radio must be properly licensed by the Federal Communications

Commission prior to use. Your BK Radio dealer can assist you in meeting

these requirements. Your dealer will program each radio with your

authorized frequencies, signaling codes, etc., and will be there to meet

your communications needs as your system expands.

SAFETY PRECAUTIONS

Do not operate the transmitter in close proximity

•

to blasting caps.

Do not operate the radio in an explosive atmo-

•

sphere (petroleum fuels, solvents, dust, etc.).

Do not operate the transmitter if a person out-

•

side the vehicle is less than three feet from the

antenna or touching the antenna.

Содержание DMH 5992

Страница 1: ......

Страница 2: ...Operation 6 Channel Guard Operation 7 Mixed Mode Operation 9 Secure Operation 10 Channel Groups 11 Programmable Push Buttons Microphone FCN Key Menu 12 Scan Operation 16 Priority Scan 18 Unit to Unit Call 21 Emergency Call 24 User Selected Channel Guard 24 Other Operational Features 25 Alphanumeric Display 28 Definitions And Acronyms 30 Programming Notes 31 ...

Страница 3: ...nce from your new radio FCC REQUIREMENTS Your radio must be properly licensed by the Federal Communications Commission prior to use Your BK Radio dealer can assist you in meeting these requirements Your dealer will program each radio with your authorized frequencies signaling codes etc and will be there to meet your communications needs as your system expands SAFETY PRECAUTIONS Do not operate the ...

Страница 4: ...limited to sunlight and x rays RF energy however should not be confused with these other forms of electromagnetic energy which when used improperly can cause biological damage Very high levels of x rays for example can damage tissues and genetic material Experts in science engineering medicine health and industry work with organizations to develop standards for exposure to RF energy These standard...

Страница 5: ...idelines listed below for human exposure to radio frequency electromagnetic energy This radio complies with the IEEE and ICNIRP exposure limits for occupational controlled RF exposure environment at operating duty factors of up to 50 talk 50 listen and is authorized by the FCC for occupational use only In terms of measuring RF energy for compliance with the FCC exposure guidelines your radio anten...

Страница 6: ...only when persons around the vehicle are at least 3 feet 90 centimeters away from the vehicle with a properly installed antenna This separation distance will ensure that there is sufficient distance from a properly installed according to installation instructions externally mounted antenna to satisfy the RF exposure requirements in the standards listed above The AMBE voice compression software inc...

Страница 7: ...rn to Channel Select mode Select a channel by turning the Channel Selector knob When 4 the unstopped channel selector is rotated past the highest 16th channel the radio will emit a beep and remain on the highest channel When rotated past the lowest 1st channel the radio will emit a beep and remain on the lowest channel The display can show channel numbers Numeric Mode channel labels Alphanumeric M...

Страница 8: ...lking CHANNEL GUARD OPERATION Channel Guard allows one radio or group of radios to be selectively called within a system If the radio has been programmed with Channel Guard use the following receive and transmit instructions ANALOG SQUELCH CONTROL Sub audible signaling CTCSS CDCSS is used to allow a group of radios to be selectively called in a system Programming the receive guard equal to zero al...

Страница 9: ...TGID Then on channels programmed for Selective squelch the incoming signal s NAC and TGID must match the channels programmed receive NAC and TGID for the radio to unmute The default TGID is 1 The TGID value 65535 FFFF hex is used to effect an All Call If the radio receives a signal with a matching NAC and the TGID 65535 FFFF hex it will unmute Also if the radio s programmed TGID is 65535 FFFF hex ...

Страница 10: ...tor illuminates while the PTT is pressed Talk in a normal voice with the microphone approximately one to two inches from your mouth Release the PTT switch to stop transmitting Hang up the microphone when finished If you pressed the 3 MON button to monitor the channel press it again after the transmission to return to Channel Guard operation MIXED MODE OPERATION The receiver and transmitter are cap...

Страница 11: ...nels operating in Digital Mode No encryption is available for analog channels The receiver automatically detects both clear and secure signals The transmitter selects clear or secure operation based on each channel s programming Digital channels can be programmed to always transmit encrypted always transmit clear or to select the Transmit Mode with the TX Secure switch If enabled by programming a ...

Страница 12: ...roization The radio provides a method for the user to panic zeroize all encryption keys This service also sets all touchpad passwords to FFFFFF The zeroization service is invoked as follows Press and hold the microphone s CLR button Wait for the radio to start beeping and for the ZERO ALL message to appear on the display While continuing to hold the CLR button press and release the PTT switch Rele...

Страница 13: ... GSC Group Scan SCN Channel Scan CG Channel Guard Disable PA Public Address PRI Priority Scan HOM Home Channel ACC Accessory 1 GRP Group Select SPK Remote Speaker ACC Accessory 2 SQL Squelch Adjust NXT Next Scan Channel ACC Accessory 3 TXD Transmit Digital Mode LPW Low Power Select SEC Transmit Secure If an LAA0290 keypad microphone is used with the DMH radio many of the functions above may also b...

Страница 14: ...ar on the display If changes to the Priority 1 channel are allowed to make the current channel the fixed Priority 1 Channel turn Scan and Priority Scan off then press the PRI button and hold it down for 1 second or more GRP Group Select Press the GRP button to toggle between Group Select and Channel Select Modes Press the GRP button for Group Select Mode Turn the Channel Selector knob to select a ...

Страница 15: ... Channel Guard operation On analog channels the radio reverts to carrier squelch On digital channels the radio will unmute when a digital signal with any NAC is detected An arrow on the display points to the CG button when Channel Guard is disabled When Channel Guard is enabled a message is heard only when the proper Channel Guard is received Transmit Channel Guard generation is unaffected The CG ...

Страница 16: ...elete Turn Group Scan off then press the GSC button for 1 second or more to toggle the current group in or out of the Group Scan List PA Public Address Press the PA button to turn the Public Address system on or off When PA is on pressing the microphone PTT switch causes audio to be routed to the audio amplifier without enabling the transmitter ACC Accessory Press the ACC button to turn the instal...

Страница 17: ...ess the 1 SCN button to enable Scan an arrow will appear above the button If the 2 CG button has an arrow over it press the CG button once to turn Channel Guard Disable off When a signal is detected scanning stops while the radio checks for the proper Channel Guard value If the signal contains the proper Channel Guard value the radio receives the message Otherwise the radio resumes scanning immedi...

Страница 18: ...ways transmit on the Priority 1 channel CHANGE THE SCAN LIST The radio can be programmed to enable the user to add or remove channels from the scan list If user changes are enabled follow these steps to change the scan list Turn Scan and Priority Scan off 1 Select a channel to be added or removed from the scan list by 2 turning the Channel Selector knob If the channel is already on the scan list S...

Страница 19: ...locks on to the priority channel and checks to see if the proper Channel Guard value is present If the signal contains the proper Channel Guard value the radio receives the message Otherwise the radio will re check the channel every 4 seconds until the activity on the channel ceases DUAL PRIORITY SCAN In each group up to two of the 16 channels can be designated as priority channels These two PR1 a...

Страница 20: ...mes active during this message the Priority indicator illuminates The radio changes to the priority channel and holds for the duration of the message The display shows the priority channel To reply to a message on the priority channel press the PTT switch and transmit on the priority channel Once activity ceases on the priority channel the radio returns to scan operation Priority Mode B With Prior...

Страница 21: ...knob Priority Mode C with Scan With Priority Scan and Channel Scan on the radio scans until it locks onto an active channel The radio continues to sample the priority channel while listening to the active channel If activity occurs on the priority channel the radio overrides the active scan channel changes to the priority channel and holds for the duration of the transmission To reply to a message...

Страница 22: ... channel a held scan or priority channel if Talkback Scan is enabled or the Priority 1 channel if TX on PR1 is enabled To alert the user that the radio is in Unit To Unit Mode a beep will periodically sound until the unit is returned to normal Operating Mode If the RTX channel s Digital Squelch Mode is set to selective the radio will accept group calls correctly addressed Unit To Unit calls and if...

Страница 23: ...ast active called or received ID will appear on the display If the last active ID was a Call List ID its label will be displayed along with the phone icon otherwise the numeric ID will be displayed along with the phone and ID icon If a label is displayed press and hold to view the corresponding numeric ID To place a call to the displayed unit press PTT To choose another unit use the microphone s k...

Страница 24: ... List Press the microphone s key to bring up the last active ID If the last active ID was a Call List ID the ID s label will be displayed along with the phone icon Otherwise the ID number will be displayed along with the phone and ID icon Press a number key 0 9 to go directly to the desired Call List ID or press PRI repeatedly to cycle to the label of the ID to be re programmed Press and hold the ...

Страница 25: ...e transmissions If the channel is programmed for Mixed Mode transmissions the TX Digital switch must be ON To place an emergency group call press and hold the emergency button until the radio beeps and the display flashes On some models the emergency button may be the microphone s PRI key All scanning and priority scanning functions will be disabled If the radio is in Unit To Unit Mode that mode w...

Страница 26: ...D Mode Digital Analog or Mixed and Squelch setting Normal or Selective On Mixed Mode channels Analog or Digital values will be copied as needed For exam ple to use the Channel Guard values of Channel 9 with the frequencies of Channel 5 Turn Scan and Priority Scan OFF 1 Turn the Channel Selector knob to Channel 5 2 Press the 3 9 key on the microphone keypad The display shows CG The radio will now o...

Страница 27: ...ed to always transmit in low power mode regardless of the radio s LPW button or microphone keypad FCN menu setting If the programming for the channel allows high power transmissions the power level can be selected with the LPW button or the keypad FCN menu DTMF ENCODING Analog Mode Only Radios with keypad equipped microphones can be programmed to enable DTMF Dual Tone Multiple Frequency encoding T...

Страница 28: ...nel is a Channel Guard channel and the proper Channel Guard value is not detected the Busy Channel Indicator remains on for the duration of the carrier activity and no message is heard During Scan and Priority Scan operation the Busy Channel Indicator glows when activity is detected on any channel on the Scan List When scanning or priority scanning Channel Guard channels with the CG Channel Guard ...

Страница 29: ...ressing the CG button to disable receive Channel Guard an arrow will appear over the button The transmitter is locked out only if the CG button is off no arrow above the CG button ALPHANUMERIC DISPLAY The Alphanumeric Display can be programmed to operate in Numeric Mode displaying channel numbers instead of labels Display enunciators indicate the following information ALPHANUMERIC INDICATION PR Pr...

Страница 30: ...ber Press and hold the 3 key to display the channel label Press the 4 ENT key or wait for about 5 seconds to revert to normal radio operation Each label can include up to eight characters with decimal points available between characters Characters can include A Z 0 9 _ h or a blank space GROUP LABELS The display can show group labels in addition to group numbers To display a group label turn scann...

Страница 31: ...io exactly how to operate PR Priority Channel PRG Programming mode PRI Priority PTT Push To Talk RTA Repeater Talk Around RTX Channel Ready to Transmit Channel RX Receive SCN Scan SQL Squelch Squelch A control that eliminates background noise Talkback Scan When scanning if a signal is present the scan will stop and you will hear the signal If you then push the PTT switch to talk back to the person...

Страница 32: ...gnments FCN 1 _____ FCN 2 _____ FCN 3 _____ FCN 4 _____ FCN 5 _____ FCN 6 _____ FCN 7 _____ FCN 8 _____ FCN 9 _____ FCN 10 _____ FCN 11 _____ Home Channel ________ Talkback Scan c Enabled c Disabled Nusiance Channel Delete c Enabled c Disabled Off Hook Scan c Enabled c Disabled Notes __________________________________________ ________________________________________________ _______________________...

Страница 33: ...___________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ _____________________...

Страница 34: ......

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