Sharp SD-AT1000W Especificaciones descargar pdf (Pagina 193)

Maxiva UAX

October 17, 2013

5‐13

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

STEP 4 RaisepowerandcalibrateatthefirstdBmlevel,thentheseconddBmlevel,

pertheinstructionsprovidedonthescreen.Asofthisprinting,theselevels

are4dBm(2.5mW)and20dBm(100mW).

STEP 5 Oncompletionofthefinalcalibrationprocedure,themenuwillpromptyou

toreconnectcables.Select“OK”onLCDscreenorSaveonwebbrowserto

exittheprocedure.Selectcanceltoterminatethecalibrationprocess.

STEP 6 Procedurecomplete.

5.4.6 CalibrateLPUOutput

LPUoutputreferstothelowpowerunittypeNconnectorlocatedontherearoftheLPU.TheLPUoutputis

relativelylinearwithfrequencysorecalibrationoftheLPUoutputistypicallynotrequiredinthefieldunlessthe

systemconfigurationisbeingchangedortheLPUisbeingre

placed.

Equipment and Tools Required:

• Directionalcouplerandaveragepowermeterorotherprecisionpowermeasurement

means.

STEP 1

Connectacalibratedcoupler,suchasaNarda3020,totheLPUoutput(RF

OU TPUT“N”connector)andconnectaloadofatleast100wattstothe

coupler.

STEP 2 OnthefrontscreenselectSETUP>SYSTEMSETTINGS>MODELNO.andthen

usetheupordownarrowstochangethemodelno.toUAX100.

STEP 3 PresstheLPUONbutton.

STEP 4 OnfrontscreenselectSETUP>XMTRPWRSETTINGS>POWERCALIBRATION

STEP 5 UsetheUPcursorkeytoselectLPU.

STEP 6 Connectthepowermetertoaforwardportonthecoupler.

STEP 7 RaisepowerandcalibrateatthefirstdBmlevelandthentheseconddBm

levelperinstructionsonthescreen.

STEP 8 SetthepowertothelowerdBmlevelandthentheupperdBmleveland

calibrateperinstructionsonthescreen.

STEP 9 Oncompletionofthefinalcalibrationprocedurethemenuwillpromptyou

toselect“Continue”toexittheprocedure.

STEP 10 PressLPUOFFbutton.

STEP 11 OnthefrontscreenselectSETUP>SYSTEMSETTINGS>MODELNO.andthen

usetheupordownarrowstochangethemodelno.tothepreviousvalue.

STEP 12 Removecouplerandsettransmitterbacktonormaloperatingcondition.

STEP 13 Endofprocedure.

5.4.7 CalibratingPABPower

PABpowerreferstotheforwardandreversepowerlevelsmeasuredattheoutputofoneormoreexternalpower

amplifierblocks(whereapplicable).

PABpo

werlevelscanbefoundintheLPULCDdisplaybynavigatingtoSTATUS>PABlock#>FWDPWRorREFPWR.

TheselevelscanalsobeseenonthewebbrowserbynavigatingtotheUAXHOME>POWERAMPSscreen.IfthePAB

powerlevelsdisplayeddonotag

reewithmeasuredlevels,thencalibrationisneeded.Theprocedurebelowmustbe

usedtocalibrateeachpoweramplifierblockinthesystem.

EquipmentandTo

olsRequired:

• Directionalcouplerandaveragepowermeterorotherprecisionpowermeasurementmeans.

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Sharp SD-AT1000W Especificaciones Pagina 193

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