
-5- -6-
1.Turnvolumecontrolsofthereceiverandmixerinusetoaminimum
settingbeforeturnonthemicrophonesortransmitters.After
switchesonthereceiver,thepowerswitchredindicatorilluminates
todenotenormalpowerstatus.
(a)UnbalancedAudioOutput:Switchthelevelswitch(7)onthereceiver
rearpaneltotheleftposition"MIC",thenadjustvolumecontrolofthe
amplifierormixertoobtainanappropriatesoundlevelofthe
microphone.
(b)Toobtainsamesensitivityandvolumelevelofbothwiredandwireless
microphonesinamixeroramplifierthathasmorethan2microphone
inputsockets,onecanadjustthewiredmicrophonevolumecontrolin
themixeroramplifier.Afterreachingdesiredsoundlevel,connectto
theAFoutputsocketofreceiver.Pleasenotethattheunbalanced
volumeswitchonthebackofthereceivershouldswitchto"MIC"
position.
(c)Ifthereceiveroutputlevelisadjustedexcessively,itwillcausethe
saturationdistortionofthemixeroramplifierwhenthemicrophoneis
loud.
3.Makesurethatthesystemperformscorrectlybyplacingthesystem
awayfromnoisesources.Placethereceiveratleast1meterabove
thegroundandawayfromnoisesources.Placethemicrophoneat
least1meterawayfromthereceivingantenna,asshowninFig.6.
4.Aftercompletion,itcanberackmountedintoanEIAstandardrack
case.Shownonfigure7.
Ground
+
-
MIC
AFOUTPUT
AUX
SQLEVEL
2.IfSIGNALLEDindicators(3)ofthereceiverlightonbefore
switchesonthemicrophoneortransmitter,itindicatesthereceiveris
receivinginterferencesignals.ThissystemhasPitlotoneand
NoiseLockdual-squelchfeaturesandnonoiseoutputwilloccur.If
multiplechannelsareusedandbothSIGNALandAUDIOLEDs
glowandinterferencenoiseappear,simplyadjusttheSquelch
controls(8)clockwiseuntilAUDIOsignalindicatorstoextinguish.
(Fig.8).However,byadjustingthesquelchcontrols,itaffectsthe
sensitivitylevelofthereceiver,therefore,shortentheoperating
distanceanddecreasesthestability.
3.Undernormalcircumstances,theSIGNALindicatorlightsupwhena
microphoneortransmitteristurnedonnearthereceivertoindicate
thereceiverisreadyfornormaloperation.Oncesoundstothe
microphoneandtheAUDIOLEDindicators(4)willglowaccording
tothestrengthofsoundlevel.IfnoLEDglowsornosoundoutputs,
thesystemisnotfunctionproperly,thusitmustbechecked.
4.ReceiverandAmplifierVolumeAdjustment:
4.OperationInstructions
(Fig.6) (Fig.7)
(Fig.8)