Sharp SD-AT1000W Dokumentacja Pobierz pdf (Strona 131)

Maxiva UAX

October 17, 2013

3‐63

888‐2693‐004 WARNING:Disconnectprimarypower priortoservicing.

3.7.13 SetupScreens‐CT TB&CMMBModulation

Figure 3-59 LPU CTTB Setup Screen 1

Table3‐56XmtrHome>ExciterHome>Setup>CTTBModulator(screen1)

Fields Explanation

Power‐OnInput

These

lectedinput,Primary(ASI1)orAuxiliary(ASI2),becomestheactiveinputwhenthe

exciterispoweredup.

ActiveIn

put Theselectedinput,Primary(ASI1)orAuxiliary(ASI2),istheactiveinput

SwitchingMode

ChoicesareAu

to(automatic)orManualswitchingoftheASITransportstream.IFinthe

automaticmodeandthecurrentASIstreamhasanissueordropsout,andtheAuxiliaryInput

issettoYes,thesystemwillswitchtotheauxiliaryASIstreamifitisavailableandgood.

NetworkOp

eration:

Choicesar

eMFN(multiplefrequencynetwork)orSFN(singlefrequencynetwork).

ConsulttheGB(NationalCTTBStandardofthePeople’sRepublicofChina)specificationon

propermodesofoperationandmakesurethetransportstreaminputratefeedingthe

modulatorisatorbelowtheallowedrateforthemodedesired.

InMFNmo

de,theusercanselecttheCTTBparametersthatareallowed.Consultthe

GB20600‐2006speconpropermodesofoperationandmakesurethetransportstreaminput

rateyouarefeedingthemodulatorisatorbelowtheallowedrateforthemodedesired.

AuxiliaryIn

put:

Choicesar

eNoorYes.Ifyesisselectedtheexcitercanbemadetoswitchtoanauxiliaryinput

iftheactiveinputfaultsordropsout.

MuteonLo

ssofTS ChoicesareOnorOff.

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Sharp SD-AT1000W Dokumentacja Strona 131