Kenwood TK-3180 Function Reference

Also see for TK-2180: Specifications Brochure & specs Instruction manual Instruction manual Service manual

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68 Function Reference Version: 1.1118 SIGNALINGSignaling consists of Optional Signaling (DTMF, 2-toneand FleetSync) and the QT/DQT that performs selectivecall and Mute function control.18.1 QT/DQT Decode/EncodeThe QT/DQT is the signaling for facilitatingcommunication within a Group when sharing the samechannel with several Zones (Talk Group).QT/ DQT cannot be heard from the speaker since it usesa sub-audible tone.QT/DQT allows you to use the siganling in ConventionalGroup and the Squelch Tail Eliminator function. (Refer to16 Conventional Group.)The transceiver mutes unwanted calls when the QT/DQTfor each Zone is configured. A user can communicatewithin a Talk Group without listening to conversationsfrom other groups.This signaling does not affect the voice communicationsince it does not use audible frequencies. Thetransceiver can distinguish the signaling since QT is acontinuous wave form even if the reception starts midway.Table 18-1 QT/DQTThe following QT/DQT operation is available.Table 18-2 QT/DQT OperationYou can configure the QT/DQT Decode/Encode code toeach channel using KPG-89D.! Configuration using KPG-89D• Configuring the QT/DQT Decode (Refer to FPRG6.3.5 QT/DQT Decode.)• Configuring the QT/DQT Encode (Refer to FPRG6.3.6 QT/DQT Encode.)18.1.1 With STE(Squelch Tail Eliminator)The Squelch Tail Eliminator in QT/DQT eliminates thenoise factor from the transmitting party in order tocommunicate comfortably.You can configure the Squelch Tail Eliminator functionusing KPG-89D.! Configuration using KPG-89D• Configuring the w/STE function (Refer to FPRG6.15.5 Modulation Line tab - w/STE.)18.2 Optional SignalingYou can use the Optional Signaling to make an individualcall. The transceiver emits the Alert Tone and starts theTranspond function when the configured OptionalSignaling matches the received Optional Signaling.You can use DTMF or FleetSync as the OptionalSignaling. (Refer to 20 DTMF, 21 2-tone, 22 FleetSync.)You can configure the Optional Signaling to each channelusing KPG-89D.! Configuration using KPG-89D• Configuring the Optional Signaling (ConventionalGroup) (Refer to FPRG 6.3.10 OptionalSignaling.)• Configuring the Optional Signaling (Trunkingsystem) FPRG 6.6.7 Optional Signaling.)QT QT (Quiet Talk) uses a continuous sub-audibletone (67.0 - 254.1 [Hz]).DQTDQT (Digital Quiet Talk) uses a 23-bit signal(Code: 000 - 777 (hexadecimal). The DQTsignal has polarity and can be configured asNormal or Inverse.ReceptionWhen the received QT/DQT code matches theQT/DQT code configured in the transceiver,the receiving tone sounds.The tone mutes when the transceiver receivesa Reverse Burst (QT) or Turn-off Code (DQT).TransmissionThe transceiver sends the QT/DQT codeconfigured in the transceiver when the PTTswitch is pressed. The transceiver continuessending the QT/DQT while either the PTTswitch, the PF Data PTT port, the PF Ext. PTT(Voice) port, or the PF Ext. PTT (Data) port ispressed. You cannot send/receive the QT/DQT in the Zone in Trunking system.