Realistic PRO-2005 owner manual Guide To The Action Bands

GUIDE TO THE ACTION BANDS

Withtherightfrequenciesprogrammedintoyourscanner, you canmonitorexcitingeventsWith.a littleinvestigation, youcanfindactivefrequenciesin yourcommunityWe.can giveyou somegeneralpointers,andyoucantakeit from there.Pleaseusecautionand commonsensewhenyou hearanemergencycall.Nevergo to thesceneofanemer- gency- it couldbe the mostdangerousthingyou could everdo.

Find out if there is a local club that monitorsyour community'sfrequenciesPerhaps,.a local electronics repairshopthatworkson equipmentsimilarto yourscan- nercangiveyou channelfrequenciesusedby localradio servicesA.volunteerpoliceor fireemployeecanalsobea goodsourceof thisinformation.

As a generalruleon VHF,mostactivityconcentratesbe- tween 153.785and 155.98MHz and then againfrom 153.73to 159.46MHz.Hereyou find localgovernment, police,fire,andmostsuchemergencyseruiceslf.youare neara railroadyardor majorrailroadtracks,lookaround 160.0to 161.for9signals.

In somelargercitiestherehasbeena moveto the UHF bandsfor emergencyservicesHere,.mostoftheactivityis in a spreadof 453.025-453.95MHzand againbetween 456.025-459.MHz95.

IntheUHFband,mobileunitsandcontrolunitsassociated withbaseandrepeaterunitsoccurintheoverallspreadsof 456.025-459.95and 465.025-469.975The. repeaterunits operate5 MHzlower(thatis,451.025-454.95and460.025- 464.975MHz)thanthe baseunits.Thismeansthatif you findan activefrequencyinsideoneof thesespreads,you canlook5 MHzlower(orhigher,as the casemaybe)to findthatradioseruice.

Anewtechnologyis nowavailablethatallowsthe useof the800MHzbandfor manyservicesSome.publicsafety agenciesusetrunkedradio,introducedto businesssys- temsin 1979With.as manyas twentychannelsavailable, the transmitterautomaticallyselectsan unusedchannel eachtimeit is activatedSeveral.agenciescansharesuch a systemwithoutcausinginterferenceThis.systemcan alsobe programmedto providesecurecommunications for selectedunits,withunselectedunitsunableto hearthe message.

Frequenciesin differentbandsare accessibleonly at specificintervalsHowever,.the frequenciesthat you can storeintoyourscanner'smemoryare in 5 kHz,12.5kHz, or 50 kHz steps.Yourscannerautomaticallyroundsthe enteredfrequencydownto thenearestvalidfrequencyFor. example,if youtry to entera frequencyof 151.473,your scanneracceptsthisentryas151.470.

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