Kenwood TH-22A Instruction Manual

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Call channelA frequency intended for establishing contact with otherstations. A transceiver key is dedicated to the Callchannel so the frequency can be recalled quickly.Call/Memory ScanA scan function that allows alternate monitoring of theCall channel and the current memory channel. Thecurrent memory channel is the memory channel selectedor used last. See "Scan".CallVFO ScanA scan function that allows alternate monitoring of theCall channel and the current VFO frequency. Thecurrent VFO frequency is the frequency selected or usedlast while in VFO mode. See "Scan".Channel DisplayAfunctionthatshowsonlythememorychannelnumberon thedisplay insteadofboth thefrequency andthememorychannel number.CO (Carrier-operated) ScanWhen scanning, Scan stops at all carriers received andresumes 2 seconds after the carrier stops.CTCSS(ContinuousToneCodedSqueich System)Also referredtoasToneSquelch.A methodofreceiversquelchcontrolthatusesasubaudibletonesuperimposedbythetransmitteron thetransmittedsignal.Onlysignalsreceivedwith asubaudibletonethatmatchesthetoneselectedatthereceiver canopenthereceiversquelch.CTCSS frequencyThe subaudible frequencies used by CTCSS.Default settingsThevalues selectedforVFOfrequency,Cailchannelfrequency,frequencystep,etc.bythetransceiverafteritisreset.Alltransceiversareshippedfromthe factorywithdefault settings.DTMF(DualToneMulti-Frequency)signalAsignalcreatedby combiningtwodiscrete audiofrequencies.Generally usedforsendingdigitsforrepeatercontrolorAutopatchapplications.DTMF Transmit HoldAfunctionthatkeepsthetransmitterkeyedwhileDTMFsignalsare sent.Thefunction eliminatestheneedtoholdPTTwhilepressingindividualkeystosendtheDTMFsignals.65