Specifications

Maxiva UAX
October 17, 2013
3‐51
888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
Figure 3-50 LPU DVB-T Setup Screen 6
Table3‐39XmtrHome>ExciterHome>Setup>DVB‐TModulator>Nextx5(screen6)
Fields Explanation
UpdateNITFlag
ChoicesareDisabledorEnabled.UpdateNIT(NetworkInformationTable)Flagallowstheupdateof
theNITpacketwithUAXRFfrequency.ThisisonlyselectableinMFNmode.
AdjustedFrequency UAXRFfrequencywhichistobeinsertedinNIT.Novaluecanbeentered.Thisisfordisplayonly
.
CellIDPriority
ChoicesareDisabled,MIP(Mega‐FrameInitializationPacket)CellID,orLocalCellID.Selectssourceof
CellIDtobeinsertedinTPS(TransportParameterSignalling)bits.Disabled:NoCellIDisinsertedinTPS
bits.MIPCellID:valueofCellIDreadfromMIPpa
cket.Novaluecanbeentered,thisisfordisplayonly.
LocalCellID:valueofCellIDtoinsertinTPSbits,rangeis1‐65535.
CellID DisplaysvalueofCellID
RaisedCosine
Window
ChoicesareBypass(nowindowing),Minimum,Medium,orMaximum.
ThisentryenablesRaisedCosineWindowshapingbetwe
enOFDMsymbolstoreduceout‐of‐band
distortion.Thewindowlengths,afractionofsymbolduration,dependonlengthoftheguardintervals,
asshownbelow.
IfGuardIntervalis1/32,thenMIN=1/512,MED=1/128,MAX=1/64.
IfGuardIntervalis1/16,thenMIN=1/512,MED=1/
128,MAX=1/32.
IfGuardIntervalis1/8,thenMIN=1/512,MED=1/128,MAX=1/16.
IfGuardIntervalis1/4,thenMIN=1/512,MED=1/128,MAX=1/8.
TXID
Isthetransmitteridentifierinasinglefrequencynetwork.
ThiswillenableMIPpacketoptionalpa
rametersthataresetforthistransmitterIDvalue.T ransmitter
IDrangetobeenteredis1‐65535.
Muteifoutby
%ofGI
Allowableentryrangeis5%to50%.InSFNmode,theexciterwillmutewhen1PPSref erenceis
missing(andLPU10MHzOCXOisflywheeling)af
terthetimingerrorbecomestoolarge.Usercan
specifytheallowederrorintimingasapercentageofguardinterval(GI)from5%to50%(defaultis
20%).