Sharp SD-AT1000W Dokumentacja Pobierz pdf (Strona 203)

Maxiva UAX

October 17, 2013

5‐23

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

Figure 5-12 LPU FWD & REF Sample Inputs

Thisva

lueof0dBmalsocorrespondstothehighpointcalibrationvalueforthesystemreflected(REFPWR) input.

Systemreflectediscalibratedoverarangecorrespondingto30dB…10dBreturnloss,whichcorrespondstoreflected

sampleinputsof‐20dBmforthelowpointand0dBmforthehighpointafterfa

ctoringinreflectedcouplingvalue,

cabling,pad,andsplitter(ifinstalled).Thus,reflectedcalibrationcanbeperformedbyraisingthetransmittertofull

outputpowerandtemporarilyconnectingtheLPUFWDsamplecabletothe REFPWRinputthrougha20dB

attenuatorpadforthelowpoint,anddirectly(nopad)fo

rthehighpoint.PleaseseetheSystemReflectedPower

CalibrationSection5.6.3onpage5‐27formoredetailonthisprocedure.

Note

RTAC is disabled during calibration. Power control is automatically switched to manual mode during cal-

ibration.

Figure 5-13 System Calibration

Stored Calibration

Figure 5-14 RTAC Linear/Non-Linear RTAC Stored Correction Sets

1 2 ... 198 199 200 201 202 203 204 205 206 207 208 ... 291 292

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Sharp SD-AT1000W Dokumentacja Strona 203