Kenwood TK-780 Service Manual Supplement

Also see for TK-780 series: Programming instructions Instruction manual Service manual Instruction manual Service manual

9TK-780/H Sub LCD displayYou can use 3-digit the display to display the systemnumber, channel number or group number. It is usefulwhen the main (12-digit) display indicates system, group orchannel name or other functions. Selective call alert LEDYou can select whether or not the LED on the transceiverflashes in an orange color when selective call was occurred. PTT IDPTT ID provides a DTMF or MSK (FleetSync™ : Fleet-ID)ANI to be sent with every time PTT (beginning of transmis-sion, end of transmission, or both).You can program PTT ID for each group. You can pro-gram a PTT ID as “on” or “off” when “DTMF” is selectedfor the PTT ID type. You can program a PTT ID as “own”,“sel” or “off” when “MSK” is selected for the PTT ID type.The contents of ID are programmed for each transceiver.The timing that the transceiver sends ID is program-mable.BOT : DTMF ID (BOT)/MSK ID is sent on beginning oftransmission.EOT : DTMF ID (EOT)/MSK ID is sent on end of transmis-sion.Both : DTMF ID (BOT)/MSK ID is sent on beginning oftransmission and DTMF ID (EOT)/MSK ID is sent on endof transmission. Radio passwordWhen the password is set in the transceiver, user can notuse the transceiver unless enter the correct password.This code can be up to 6 digits from 0 to 9 and input withthe key, and "S" key. Off hook decodeIf the Off hook decode function has been enabled, re-moving and replacing the microphone on the hook has noeffect for decoding QT/DQT and option signalling. Timed power offThis function works as “Automatic Power Switch Off”.Timed power off timer starts from the ignition-off. Afterthe timer expires, the radio will automatically turn off. Thetimer will be reset if the ignition is turned on and off.This function requires ignition-sense. Connect the igni-tion-line to the 9-pin connector which is located at the rear ofthe radio.After the timer expires, press the power switch to turnon the radio.OPERATING FEATURES Horn alertIn trunking format, horn alert can be set to on or off foreach group. If horn alert has been set to YES for a group andDEC ID/QT/DQT matches, the horn alert, HOR. is turned onand off. The group for which the optional signalling is setworks by ANDing the decode ID/QT/DQT with the optionalsignalling.In conventional format, if you are called from the basestation using 2-tone/DTMF while you are away from yourtransceiver, you will be alerted by the vehicle horn or someother type of external alert. To turn horn alert function on,press the [Horn Alert] key.Either continuous or non-continuous operation can be setby the FPU. The horn alert port is enabled or disabled asfollows;Off hook horn alert Hook off Hook onEnable Yes YesDisable No Yes PulseThe horn alert port, HOR, is turned on and off as follows;The timing when the fixed LTR ID matches is as follows(trunking format); ContinuousHorn alert can be reset by setting an expiration time fromthe FPU, pressing the AUX-A key, or setting off hook. Data TX with QT/DQTWhether programmed QT/DQT is modulated or not witha data transmission except for Selcall. A radio unit can re-ceive a data message regardless of QT/DQT if the receivingunit is not scanning.0.5s 0.5s 0.5s 0.5s 0.5sHOR1s 0.5s 1s