Sharp SD-AT1000W Spezifikationen Seite 115

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Maxiva UAX
October 17, 2013
347
8882693004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
Figure 3-46 LPU DVB-T Setup Screen 2
Table335XmtrHome>ExciterHome>Setup>DVBTModulator>Next(screen2)
Fields Explanation
NetworkOperation
SelectMFN(MultiFrequencyNetwork)orSFN(SingleFrequencyNetwork).MFNmodeselects
operationinaMultipleFrequencyNetwork(transmittersondifferentfrequencies)whichdoesnot
requiresynchronizationwiththeothertransmittersinanetwork.SFNmodeselectsoperationin
SingleFrequencyNetwork(transmittersonsamefrequency)whichrequiressynchronizationwith
othertransmittersinanetwork.IfSFNisselectedaGPSantennaisrequiredandinternalGPSis
selectedonthePFRUsetupscreenfoundonFigure333onpage332.Thisappliestoevery
modulationmodethatsupportsSFN.
OutputProcessTime
Enteravalueinmicroseconds(uS).Timesettingsareusedtosynchronizethetransmissiontiming
forsinglefrequencynetworks.
MFN/SFNStaticDelay
ThisentryappearswhentheMFNorSFNnetworkoptionisactive.Therangeis‐
10000us...+10000uS.ThevaluecanbeenteredlocallyorcontrolledbyMIP.SeeTimeDelayPriority
(LocalorMIP)below.
TimeDelayPriority
ChoicesareLocalorMIP.Localusesalocallyenteredtimedelay.WhenMIPisselected,thetime
delayissentviatheMIPpacket,whichissentovertheSFNnetwork
MIPPowerControl ChoicesareOnorOff.Allowsnetworkcontroloftransmitterpoweroutput.
MIPERP
Di
splayonly,indBmandwatts.Thisentry,aswellastheAntennaGainandXmtrOutputPower
entries,allowtheoperatortosettheERPoftheUAXtransmitterdrivensystemremotelybyavalue
sentintheMIPpacketfromSynchrony.
AntennaGain
EnterantennaGainindB.Thisentryallo
wstheERPforthisstationtobesetremotelybyvarying
thetransmitteroutputpower.
XmtrOutputPower Displayonly,dBmandwatts.
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