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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Section 13: Deep Tech Information and Troubleshooting 281

AretheXstream‘smodessetproperly?

TheXstream’sTransmitModeandReceiveMode(bothlocatedinthesecondCODEC

menu)mustbesettotheproperconditionsateachendinorderforthesystemtowork.

SeeSection10(ApplicationGuide)andSection11(DetailedMenuReference)forthe

correctsettings.

Sometimescyclingbe

tweenmodescanclearadecodeproblem.

Isaudioproperlyconnectedandconfigured?

AretheZephyrXstream’sfrontpanelSendbargraphmetersindicatingsignalpresentat

acorrectlevel?Ifnot,checkaudioconnectionsandcables.IstheInputlevelsettingin

theAUDIOmenusetcorrectly?

Condition: Audio In One Direction Only

Thisproble

mcanbeeitheranalogordigitalinnature.Unlikeanalogtelephonelines,thetwo

directionsofadigitallinearemostlyindependent.Itispossibletohaveatelephonechannel

failureinonedirectiononly.Oneofthefollowingmayservetoforceyouthroughthenetwork

viaadifferentpath.

Whathap

pensifyoutryadifferentlongdistancecarrierforthecall?

Ifyoutrythecallat56vs64(orviceversa)?

Tryreversingthedirectionofthecall?

Tryplacingalocalcallasalongdistancecall?

AreaudiosignalsandconnectionsOK?

Itgoeswitho

utsaying–it’sgottobeplugged‐intowork.Iftheproblemisonlywithone

channelreversingAandBaudioconnectionswillhelpproblem,isolation.

Doyouhaveagoodtelephonenetworkpathinbothdirections?

Isolatetheproblemareabyusingtheloopbacktechniquesdesc

ribedabove.

Remember,ifunitcanlocktoitselfviathefarendunit'sloopback,thenthenetwork

pathisworking.

Condition: Audio Distorted

Mixermodels‐IstheAUDIOmenuCh"x"gainselectionsetcorrectly?

Applyingaline‐levelsignaltoasystemconfiguredformicrophonelevelswillmakefor

someprettyawfuldistortion.ChecktheclipindicatorsonthefirstAUDIOmenu.

CheckthesettingoftheProcXinAUDIOmenus2‐5.TheVoiceMediumandVoiceHigh

settingscanbeveryaggressive.

NonMixermodels

‐IstheAUDIOmenu"LevelIn"selectionsetcorrectly?ArejumpersJP5andJP6se

t

properlyforyourapplication?

GainTrimsetOK?

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