GME CM1039 - Zone Scan Operation; Zone Scan

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Theradioscanstherepeateroutputfrequenciesandselectsthechannelwiththehighest
signalstrengthorthefirstchannelaboveasignalstrengththreshold.
TheradiomaintainsachanneltouseforPTT.Generallythisisthelastchanneltheradio
selectedforreceive.Ifnosignalhasbeenreceivedtheradiowillcyclethroughallthe
channelsinturnoneachPTTpress.
BusyVoting
Busyvotingisusedwhenthereareseveralrepeatersonthesamesiteprovidingapoolof
channelstoseveralgroupsofusers.Eachgroupofusersisgenerallydefinedbyacommon
CTCSStone.Theradioscansthechannelsandkeepstrackofwhichchannelsarefreeand
whicharebusyandcurrentlyusedbyanothergroup.
WhenasignalisreceivedwiththecorrectCTCSStone,theradiostopsscanningandholds
onthatchannel.
WhenthePTTispressedtheradiotransmitsonafreerepeaterchannel.Theradiosina
groupdon'ttransmitonthesamerepeaterchanneleachtime,asitdependsonwhich
repeaterchannelisinuseatanygiventime.
ZoneScan
Zonescanisusedtoscanagroupofchannelsforactivitywithinthecurrentzone.The
channelsarescannedinsequenceforactivityusingopenscanorpriorityscanmethods.
Votingisnotusedforzonescan.
Thechannelstobescannedaretaggedforzonescan.Analogchannels,P25Conventional
channels,andscangroupscanbetaggedforzonescan.Ifascangroupistagged,thenonly
thefirstchannelinthescangroupisincludedinthezonescansequence.P25Trunking
channelscannotbetagged.Hiddenchannelscanalsobetagged.Hiddenchannelscanonly
betaggedbytheradioprogrammer,notbytheuser.
Zonescanchannelsaretaggedusingtheradioprogrammer.Theusermayalsooptionally
beenabledtotagchannelsforzonescan.Totagachannel,theuserselectsthechannel
withtheSELknobthentagsthechannelwithalongpressoftheSCANkey.Atagged
channelisuntaggedwithalongpressoftheSCANkey.
ZonescanisselectedusingtheSCANkey.WhentheSCANkeyispressed,theradio
commencesscanningallthetaggedchannelsinthecurrentzone.TheSCANkeyispressed
againtostopzonescan.WhilezonescanisactivetheSELknobcannotbeusedtoselect
channels.
IfaRECALLkeyispressedduringzonescan,thenzonescanstopsandtheradioselectsthe
channelorscangroupassignedtotheRECALLkey.