User Manual

14
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nothearthecall.Similarly,callsmadetootherradiosthatuseadifferentsquelchtonewill
notbeheardbyyourradio.Inthiswayseveralgroupsofradioscansharethesamechannel
butbealmostunawareofeachother'sexistence.OnemainadvantageofCTCSS/DCSisitis
fullyautomaticwithnospecialoperationrequiredbytheuser.
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MONITOR
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Amonitorkeyisusedtomonitor(listen)toachannelthatwouldnormallyremainsquelched
(quiet)underthecontrolofaCTCSSorDCStone.WhenCTCSS/DCSisbeingused,theremay
beotheruserstalkingonthechannelbutyouwillnotbeabletohearanything.Pressingthe
Monitorkeyoverridesthetonesquelchtoallowyoutohearthesesignals.TheMonitorkey
isoftenusedtocheckthatthechannelisclearbeforetransmitting.
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Note:TheMonitorkeydoesnotopentheSquelch;itsimplyoverridestheCTCSS/DCStone
decoder.Iftherearenosignalsonthechannel,theradiowillstillremainquietandno
receivernoisewillbeheard.
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ZONES
TheCM1039seriesradioiscapableof50zoneswhichareusedforallocatingdiscreet
channelsortalkgroup(P25)intozones.Zonescanalsobeusedforregional,hierarchyor
geographicgrouping
Azoneisacollectionofchannelsortalkgroups.Zonesareusedtogroupchannelsthat
havesomethingincommon,suchaspublicagency(police,fire,ambulance)orgeographic
region.
Whenzonesareenabled,theusercanselectchannelsonlyfromthecurrentlyactivezone.
Ifzonesarenotrequired,zonescanbegloballydisabled.Allchannelsthenappearinone
list.Themaximumchannelcapacityis1072channels.
Ifzonesareenabled,everychannelmustbelongtoazoneandeachchannelcanbeinonly
onezone
atatime.
Eachzonecanbeindividuallyenabled.Azonecontainingnochannelsisalwaysdisabled.
Whenselectingazone,theusercanselectonlyfromthelistofenabledzones.The
maximumnumberofzonesis50.
Selectingazone
Toselectazone:
1. PressSELto
accesstheMenu.
2. RotatetheSELknobtoselect‘ZONES’thenpressSEL.
3. RotatetheSELknobtoselectthedesiredZonethenpressSEL.
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Whileselectingazoneusingthemenu,theradiocontinuestooperateonthecurrent