Specifications

Maxiva UAX
October 17, 2013
5‐3
888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
Caution
ALWAYS MONITOR REFLECTED POWER AS TRANSMITTER OUTPUT
POWER IS INCREASED. HIGH LEVELS OF REFLECTED POWER INDICATE A
PROBLEM IN THE OUTPUT COMBINING SYSTEM, FILTER, LOAD, ANTENNA,
OR TRANSMISSION LINE.
STEP 10 Slowlyraisethetransmitterpoweruntilthedesiredpowerreadingis
observedoncalibratedpowermeterconnectedtodirectionalcouplerat
transmitteroutput(oratthefrontpanelonsomemodels).
STEP 11 Usetestequipmenttoconfirmsignalqualityandreferto"3.8.2RTACStatus
Screens1&2"onpage3‐76toco
nfirmRTAClevels.
STEP 12 GotoLPULCDHomescreenandreactivateadaptiveprecorrection.When
systemisstableverifysystemperformance.
STEP 13 Performafunctionalchecktoverifytransmitterisworkingcorrectly.
STEP 14 Proce dur ecomplete.
5.3.1.1 StoredCalibrationSet s
ChangingfrequencyrequirescalibrationoftheUAXmetering.TheUAXLPUiscapableofstoringeightsetsofpower
calibrationvaluestoallowtheusertooperateateightdifferentfrequencies.
Thewe
bbrowsercanbeusedtonavigatetotheEXCITERHOME>XMTRHOME>CONFIG>CAL>STOREDCAL>
STOREDCALIBRATIONscreentodisplaythecalibrationtable.TheLPULCDscreencanalsobeusedtoviewand
deletestoredcalibrationsets(S ETUP >XMTRPOWERSETTINGS>ST
OREDCAL).
Figure 5-1 Stored Calibration screen
TheStor
edCalibrationscreendisplaysthecalibrationtable.This tableassociateseachstoredcalibrationsetwitha
frequency.Whenauserbeginscalibration,ifthecurrentfrequencysettingisalreadyinthetable,thatcalibrationset
inthetableforthatfrequencywillbeoverwritten.
Ifther
eisnocalibrationsetinthetableforthecurrentfrequency,anadditionalcalibrationsetwillbesavedwiththe
newfrequencyinthenextavailablelocationinthetable.Iftherearealreadyeightsetsofcalibrationdatastored,
andtheuserattemptstobegincalibrationwithanewfr
equency,calibrationwillnotbealloweduntiltheuser
deletesoneofthecurrentstoredsetsofcalibration.Whenthisoccurs,uponattemptingtobegincalibration,the
userwillbenotifiedthatthecalibrationtableisfullanddirectedtotheStoredCalibrationscreentoallowtheuserto
viewthecu
rrentstoredcalibrationsetsanddeleteasetoftheirchoosing.
Inno
rmaloperation,theLPUwillautomaticallyusethecalibrationsetthatmatchesthecurrentfrequencysetting.If
thereisnostoredsetofforwardorreflectedpowercalibrationdataforthecurrentfrequencysetting,afaultwillbe
logged,causingtheLPU tomute.