Specifications

Maxiva UAX
October 17, 2013
2‐15
888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
ofrushingairfromthe50VDCfansonthePABchassisreardoor(s).Monitor
reflectedpowerasRFoutputpowershouldrampupfromzero.
Note
The transmitter has already been adjusted to the desired operating frequency and power during final fac-
tory test. If a mask filter is provided inside the transmitter rack, it will also have been tuned and tested on
chan
nel at full power.
STEP 13
ReadtransmitteroutputpowerfromPOWERscreenonLPU.Refertosection
"5.2Pe
rformingaFunctionalCheck"onpage5‐1andperformafunctional
check.Iffullpo
werisnotachievedrefertosection"5.3.2Changingthe
OutputPo
werLevel"onpage5‐4ofthismanual.Viewactivefaultentriesin
theac
tiveLPUfaultlog(s)andseeSection‐6Diagnosticsformore
information.
STEP 14 Allowthetransmittertowarmupatfullpowerforthirtyminutes.
STEP 15 Checkthetransmittedsignalquality.
Ifadigitalmodulationformatisbeingtransmitted,measurethesuppressionofadjacentchannelIMDsidebands
(shoulders)withaspectrumanalyzer.Consult"5.5Pr
e‐correctionforDigitalTV"onpage5‐15formoredetails.
Ifananalogmodula
tionformatisbeingtransmitted,measuresyncamplitude,testlinefrequencyresponse,and
othercommonvideoparameterswithawaveformmonitor.MeasureIMDbeatproductsuppressionwithaspectrum
analyzer.Consult"5.7Pr
e‐correctionforAnalogTV"onpage5‐33formoredetails.
STEP 16
Oncetheproperfunctioningofthetransmitterhasbeenverified,proceedto
installanyrequiredremotecontrolconnections.Consult"2.12P
arallel
RemoteCo
ntrolInstallation"onpage2‐16formoredetails.
STEP 17 Placethetransmitterin‘remote’modeattheLPUfrontpanel(orTCUfront
panelfordualdrivesystems)toactivateallremotecontrolconnections.
STEP 18 Verifythecorrectfunctioningofanyremotecontrolsystems.
2.11 BatteryBackupActivation
LPUsthatshipwiththeoptionalbatterybackup(15minuteUPS)systeminstalledwillhaveaconnector/jumper
installedontheTxInterfaceconnectorontheLPUchassisrearpanel.
Figure 2-10 Battery Backup (UPS) Jumper
Oncethet
ransmitterhasbeenplacedintoservicethebatterybackupconnector/jumpercanberemovedtoactivate
theLPUbatterybackup(UPS)system.Retaintheconnector/jumperforfutureuseshouldthetransmitterbeplaced
instorageorshippedtoanotherlocation.