Kenwood TH-78A Instruction Manual

Also see for TH-78A: Instruction manual Instruction manual Service manual Instructions Instruction manual

Contents

SCANNINGYou must adjust the squelch to the threshold pointfor proper scan operation. You cannot use scan inconjunction with the tone alert function and paging.Scanning occurs separately in the VHF and UHFbands.You can reverse the direction by turning the Tuningcontrol or MESSAGE key.1 Hold/Resume ProgrammingThis transceiver provides two types of scan hold/resume:* Time Operated ScanThe transceiver stops scanning on a busy channel,remains there for approximately 5 seconds, and thencontinues to scan even if the signal is still present.* Carrier Operated ScanThe transceiver stops scanning on a busy channeland remains there until the signal drops out. Itallows a 2 second delay before resuming scanning toprevent losing the station when operators change.In CTCSS operation, scan will stop only on signalsthat contain the proper CTCSS code.In DTSS operation, scan will stop (without squelchturned off) whenever it receives a sÀðnal. However,squelch will not open until the proper DTSS signal isreseived.In combined CTCSS and DTSS modes, scanningstops when the proper CTCSS tone is reseived.Squelch will open only if the DTSS sgnal matcheswhen the scan stops.Hold/Resume SelectionThe transceiver is delivered from the factory in theTime Operated Scan mode. Use the followingprocedure to switch between modes:n VHF Band :Press and hold the 8 key and turn on the power.* UHF Band:Press and hold the 9 key and turn on the power.2 Scan operation cancelOperation band :Press any key except MONI, LAMP, BAND, MHz,E.CHG, or MSG.Sub-band:Press the BAND key, then press the PTT switch.24