Kenwood TKR-740 Instruction Manual

Also see for TKR-740: Brochure & specs Service manual Instruction manual Service manual

Contents

REPEATER OPERATIONNote:Please consult your dealer for programming the repeater.When power is applied to the unit, the POWER indicatorlights green.Turn the VOLUME control clockwise until a click sounds,to unmute the volume. Rotate to adjust the volume. Turnthe VOLUME control counterclockwise fully to mute thevolume.The BUSY indicator lights green while receiving a signal,and the TX indicator lights red while transmitting.qqqqq Speakerwwwww REF (reference) indicatorLights red when using an external referencefrequency. Lights green when using the internalreference frequency.eeeee BUSY indicatorLights green while a signal is being received.rrrrr TX (transmit) indicatorLights red while transmitting.ttttt POWER indicatorLights green when power is applied.yyyyy DisplayTwo, 7-segment digits display the channel numberor status.uuuuu Programmable Function keysPress these keys to activate their programmablefunctions.iiiii TEST switchPress to transmit an unmodulated signal with nolocal microphone connected. If an externalmodulation signal source is connected to theCONTROL I/O jack, the RF signal is modulatedwith this signal source.ooooo VOLUME controlTurn clockwise until a click sounds, to unmute thevolume. Rotate to adjust the volume. Turncounterclockwise fully to mute the volume.!0!0!0!0!0 MICROPHONE jackConnect a microphone to this 8-pin modular jack.■ Rear Panelqqqqq RX IN jackConnect a RX antenna or a duplexer to this BNCreceptacle.wwwww TEST/SPKR jackTest input/output jack. Connect an externalspeaker to this jack.eeeee REMT I/O jackConnect an external remote controller to this jack.rrrrr CONTROL I/O jackConnect an external programming device orrepeater controller to this DB-25 interface.ttttt EXT REF IN jackConnect an external reference oscillator (10 MHz,-10 dBm or higher) to this BNC receptacle.yyyyy DC 13.8V jackConnect a 13.8 V DC power supply to this jack.uuuuu FUSEInsert a 4 A blade fuse into this fuse holder.iiiii TX OUT jackConnect a TX antenna or a duplexer to this BNCreceptacle.TRANSCEIVER OPERATION■ ReceiveAdjust the volume to your desired level. You mayneed to readjust the volume when you receive amessage from your dispatcher or another member inyour fleet.• The BUSY indicator lights while a signal is beingreceived.■ Transmit1 Listen to the channel before transmitting, to makesure it is not being used.2 Press the microphone PTT switch and speak inyour normal speaking voice.• FCC regulations require that you identify thestation you are calling as well as your ownstation (your assigned call sign).• The TX indicator lights while transmitting.3 When you finish speaking, release the PTT switch.CONTROLS AND FUNCTIONS■ Front Panelwwwww eeeee rrrrr ttttt yyyyy uuuuuqqqqq iiiiiqqqqq wwwww eeeee rrrrr ttttt yyyyy uuuuu iiiii ooooo !0!0!0!0!0

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