Kenwood TKR-750-850 Function Reference

Also see for TKR-750: Brochure & specs Service manual Service manual Service manual Instruction manual

Contents

4 CHANNEL INFORMATION12 Function Reference (FUNC) Version: 1.01 USA4.8 Operation ModeYou can configure Repeat, Simplex or Duplex mode toeach channel.Select Repeat Mode for repeat operation channel.Select Duplex Mode for two-way simultaneouscommunication channel (using different frequencies fortransmission and reception).Select Simplex Mode for one-way communicationchannel (using a same frequency for transmission andreception).Table 4-3 Operation Mode FunctionNote: Scan does not work on the Repeat channel. That channel islimited for repeat operation only. (Refer to 4.12 Scan Add.)! Configuration of KPG-91D" Configuring Operation Mode (Refer to FPRG 6.2.8Operation Mode.)4.9 Beat ShiftThis function eliminates a problem of receiver's internalinterference caused by internal oscillators.The harmonic of oscillator implemented for themicroprocessor may interfere with receiving audio. Youcan eliminate this problem by slightly shifting a frequencyof oscillator used for the microprocessor.Each channel can be assigned as enable or disable thisfunction separately by KPG-91D.! Configuration of KPG-91D" Enabling/disabling the Beat Shift function in eachchannel (Refer to FPRG 6.2.10 Beat Shift.)4.10 TX High PowerYou can select a transmission output power (high or low)on each channel.! Configuration of KPG-91D" Configuring the transmission output power (high orlow) to each channel (Refer to FPRG 6.2.11 TXHigh Power.)4.11 QT Reverse BurstThis function eliminates a squelch tail noise of the end ofcommunication. TKR-750/850/751/851 transmits a QTReverse Burst code immediately at end of transmitting.(Refer to 5 QT/DQT.)You can configure a QT Reverse Burst using KPG-91D! Configuration of KPG-91D" Configuring the QT Reverse Burst (Refer to FPRG6.2.12 QT/DQT Reverse Burst.)Note: A DQT Turn-off code is always transmitted even if a QTReverse Burst is configured as disabled.(Refer to 5.2 DQT Turn-off Code.)Mode DescriptionRepeatTKR-750/850/751/851 starts a repeat operationwhen QT/DQT code is matched and transmits usingthe transmission frequency and a QT/DQT Encodecode. When it is operating under this mode, areceived audio is modulated and you can monitorthe audio.SimplexThis communication method is referred to as“Simplex system” since same frequency, which isfor RX and TX is used for each other. On a channelconfigured this Mode, it is impossible to receive acall while transmitting. A received audio is mutedwhen the Local Mic PTT or the External PTT is on.DuplexThis communication method is referred to as“Duplex system” since different frequencies, whichis for RX and TX are used. On the channelconfigured this Mode, it is possible to receive a calleven while transmitting. TKR-750/850/751/851transmits without muting the received audio whenthe Local Mic PTT or the External PTT is on.