Specifications

1‐1
888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
Maxiva UAX
October 17, 2013
Section-1 Introduction
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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