Sharp SD-AT1000W Especificações descarregar pdf (Página 15)

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888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.

Maxiva UAX

October 17, 2013

Section-1 Introduction

1.1 PurposeofThisManual

Thismanualprovidesimportantinformationforthe properoperationandmaintenanceoftheUAXfamilyofair

cooled,solidstate,VHFtransmitters.Schematicsanddiagramsareprovidedinanaccompanyingdrawingpackage.

Thismanualiswrittenfortheskil ledbroadcastmaintenancetechnicianandassumespreviousexperienceworking

withRFbroadcastequipment.Theva

rioussectionsofthistechnicalmanualprovidethefollowingtypesof

information:

•Section1:Introduction,identifiestheversionsoftheproductavailableandthepossibleoptions.

•Section2:Installation,detailstheprocedurestoreceive,install,andcommissionthetransmitter

foruse, includinganin itialprocedure.

•Section3:Operation,describesoperationoftheequipmentandisintendedtobetheprimary

sectionreferencedbyoperatingpersonnel.

•Section4:TheoryofOperation,isincludedtohelpservicepersonneltounderstandtheinner

workingsofthetransmitter.

•Section5:Maintenance,listsandexplainsalignmentsandadjustmentsthatcouldberequiredto

maintainthetransmitteronceinoperation.

•Section6:Troubleshooting,isincludedasaservicingaidtobeusedalongwithSections4and5

byqualifiedservicepersonneltoidentifyandcorrectanequipmentmalfunction.

•Section7:PartsList,acomprehensivelistingofthecomponentsthatmaybereplacedinthe

field.

Note

If a "customer-special" manual is included with a custom-built transmitter, the information in that manual

supercedes that contained in this manual.

1.2 Features/Benefits

TheHarrisUAXSeriesoftransmitteroffersthefollowingusefulfeaturesandbenefits:

•Easymigrationfromanalogtodigitalorbetweendifferentmodulationstandards.Nearlyalldigi‐

talTVst

andardsareavailablebysoftwareupgrade.Note:Ifdifferentmodulationstandardshave

notbeenpurchased,thenanewfeaturekeymustbeenteredintothecontroller.

•Rugged,reliabledesignandconstruction‐Compactdesignutilizingonly4RUrackspaceforLPU

(LowPowerUnit)and5RUrackspaceforthePAB(PowerAmplifierBlock)

•New50‐voltLDMOSdevicetechnologydeliversadramaticincreaseinpowerdensity.

•PowerSmarttechnology ,forbest‐in‐classpowerefficiencyandlowestoperatingcosts

•Digitalandanalogpowerlevelsupto2kWand3kW,respectively

•All‐digitallinearandnon‐linearpre‐correctionutilizingReal‐TimeAdaptiveCorrection(RTAC™)

•FullybroadbandPAmodules—UHF,bandsIV&V,470to862MHz

•1:1PowerAmplifier (PA)moduletopowersupplyredundancy

•"Hot‐pluggable"air‐cooledpoweramplifiers(PAs)modules&powersupplies(PSs)

•AutomaticrestartafterACmainsinterruption‐returnstopreviousoperationalmode

•Modularcentralcontrolsystemforstraightforwardmonitoringandin‐depthdiagnostics

•Harris®web‐enabledremoteGUIinterface

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