HP 11848A User manual

SERVICEMANUAL
1«49A PHASE HOSEINWACE
HP 11848A
PHASE NOISE
INTERFACE
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HP11848A
PHASENOISEINTERFACE
ServiceManual
SERIALNUMBERS
Thismanualappliesdirectlytoinstrumentswithserial
numbersprefixed:
2621Ato2815A
rev.20APR88
Foradditionalimportantinformationaboutserial
numbers,referto"INSTRUMENTSCOVEREDBY
THISMANUAL"inSection1.
FirstEdition
Copyright©HEWLETT-PACKARDCOMPANY1987
EAST24001MISSIONAVENUE,TAPC-34,SPOKANE,WASHINGTON, U.S.A. 99220
ServiceManualHPPart11848-90004
MicroficheServiceManualHPPart11848-90011Printedin U.S.A.: June1987
What
HEWLETT
WIEM PACKARD

s no .r
O'TY.

Model11848A GeneralInformation
DOCUMENTATIONUPDATING
Aninstrumentmanufacturedaftertheprintingofthesemanualsmayhavea serial-numberprefixthat
isnotlistedonthemanualtitlepage.Havinga serial-numberprefixthatisgreaterthanthatshownon
thetitlepageindicatesthattheinstrumentisslightlydifferentfromthosedocumentedinthemanual.
Inthiscase,yourmanualmaybeprovidedwith updatinginformationtomakeitascurrentaspossible.
Thisupdatinginformationcontainsallmajorchangeinformationthatappliestoinstrumentsbeyond
theserial-prefixrangedefinedonthetitlepage.Minorchangesmaynotbeincludedbutwillbecovered
insubsequentupdatesyoucanreceivebyjoiningtheDocumentationUpdateService.
ADescriptionoftheManualUpdatePacket
AManual Update packetconsistsofreplacementandadditionpageswhichshouldbeincorporatedin
yourmanualtobringituptodate.(Anadditionpageresultswhennewinformationwon'tfit ona
replacementpage.)
SigningUpfortheDocumentationUpdateService
Hewlett-Packardoffersa DocumentationUpdateServicethatwillprovideyouwithfurtherupdates
andchangesastheybecomeavailable.Ifyouhavenotreceivedupdateinformationthatmatchesthe
serialnumberofyourinstrument,youcanreceivethisinformationthroughtheUpdateService.
Ifyouoperateorserviceinstrumentswithdifferentserialprefixes,westronglyrecommendthatyou
jointhisserviceimmediatelytoensurethatyourmanualiskeptcurrent.
Formoreinformation,refertotheDocumentationUpdateServicereplycardincludedinthismanual
orcontact:
Hewlett-PackardCompany
TechnicalWritingDepartment
24001E.Mission-TAFC-34
Spokane,WA99220
[phone]
Also, ifyoujointheupdateservice,youcanindicatewhetheryouchoosetobecontactedinthe
futureaboutthequalityofthedocumentationyoureceive.Weareconstantlytryingtoprovidethe
bestdocumentationpossibleandperiodicallysurveyourcustomersastotheirexpectationsandthe
usabilityofthemanualsweprovide.
SAFETYCONSIDERATIONS
The Interfaceisa SafetyClassI instrument(thatis,providedwith a protectiveearthterminal).Before
operation,lookoverthePhaseNoiseInterfaceanditsrelateddocumentationtogetfamiliarwith
safetymarkingsandinstructions.RefertotheSafety Considerations pagefoundatthebeginningof
thismanualfora summaryofthesafetyinformation.Safetyinformationthatappliestothespecific
taskathand(forexample,installation)isfoundinthismanual.
3

GeneralInformation Model11848A
Fuses
50QTermination
Adapters,Type-NtoBNC
CableAssembly;BNCtoSMB CablesAssemblies;BNC
HP3048ASoftwareDiscs
Figure I.Accessories Supplied
4 rev.l5DEC87

Model11848A GeneralInformation
ACCESSORIESSUPPLIED
TheaccessoriessuppliedarepiecesofequipmentthatareshippedwitheveryInterface.Theaccessories
areshowninFigure1.
LinePowerCable.Thelinepowercablemaybesuppliedinseveralplugconfigurations,depending
onthedestinationoftheoriginalshipment.RefertoPower Cables intheInstallation sectionofthis
Service manual.
Fuses. Riseswitha 0.75Aratingfor115Vac(HPpartnumber2110-0063)anda 0.5Aratingfor230
Vac(HPpartnumber2110-0012)aresupplied.Onefuseisfactoryinstalledaccordingtothevoltage\
availableinthecountryoforiginaldestination.RefertoPower Requirements intheInstallation ofthis;
Service manual.
HP3048ASoftwareDiscsandManualSet.TheHP3048Asoftwaresetandassociatedmanualsarej
shippedwiththeInterface.
HP 3048A Software Set (HPpartnumber11848-61026).\
HP 11848A Service Manual (HPpartnumber11848-90004).
HP 3048A Operating Manual (HPpartnumber03048-90001).
HP 3048A Reference Manual (HPpartnumber03048-90002).
50QTermination.This50HloadisusedtoterminatetheInterface'sSpectrumAnalyzeroutputif no;
RFspectrumanalyzerisavailable(HPpartnumber1250-0207).
Adapters,Type-NtoBNC.Threeadaptersareprovidedforsystemoperation(HPpartnumber
1250-0780).
CableAssemblies:BNC.Two30cm(12in.)cablesareprovidedforsystemoperation(HPpart,
number8120-1838).\
NoiseFloorTestFixture.Thistestfixture isusedtorunperformancetests(HPpartnumber,
11848-61032).
CableAssembly:BNCtoSMB.Thiscableassemblycanbeusedduringtroubleshooting(HPpart
number08954-60105).
5

GeneralInformation Model11848A
RECOMMENDEDTESTEQUIPMENT
Table1liststhetestequipmentandaccessoriesrecommendedforuseintesting,adjusting,andservicing
theInterface.Ifanyoftherecommendedequipmentisunavailable,instrumentswithequivalent
minimumspecificationsmaybesubstituted.
TestsfortheInterfaceareperformedduringtheHP3048APerformanceTestswhichareavailablein
theHP 3048A Operating Manual inAppendix B, Performance Tests.
Table 1. Recommended Test Equipment
InstrumentType
DynamicSignalAnalyzer
Counter(550MHz)
FunctionGenerator
Oscilloscope
PowerMeterandSensor
ModelNumber
HP3561A
HP5383A,HP5386A
HP3312A.HP3325A
HP1740A
HP435BorHP436Awith
HP8481AorHP8482A
Use*
!A,CfP,T"
P
P.T
T
T
*A=Adjustments,C=Functional Checks, P=Performance Tests, Troubleshooting1
**The HP 3561Aisincludedwiththe HP 3048Asystem.
OPTIONSAVAILABLE
Optionsarevariationsonthestandardinstrumentwhichcanbeorderedduringthepurchase.
ElectricalOptions
Option201:AddHighFrequencyPhaseDetector.Thisoptionaddsa 1.2to18GHzphase
detectortotheInterface.Thisphasedetectorextendstherangeofcarrierfrequenciesthatcanbe
demodulatedwithintheInterfacewithoutexternaldownconversionbytheSystem.AlloftheHP3048A
specificationsfrom 1.6to18GHzcarrierfrequencyarevalidwith thisoption.
MechanicalOptions
Option907:Front-HandleKit.FronthandlesareprovidedwhenOption907isordered.Aftershipment,
youcanordera Front-HandleKitasHPpartnumber5061-9689.
Option908:Rack-FlangeKit.Rackflanges areprovidedfortheHP11848APhaseNoiseInterface
whenOption908isordered.Aftershipment,youcanordera Rack-FlangeKitasHPpartnumber
5061-9677.
Option909:Rack-FlangeandFront-HandleCombinationKit.Thisisnota Front-HandleKitanda
Rack-FlangeKitpackagedtogether;itisa uniquepartthatcombinesbothfunctions.Combinationkits
areprovidedfortheHP11848APhaseNoiseInterfacewhenOption909isordered.Aftershipment,
youcanordera Rack-FlangeandFront-HandleCombinationKitasHPpartnumber5061-9683.
6 rev.l5DEC87

Model11848A Installation
Operatingvoltageisshown
inmodulewindow.
Selection of OperatingVoltage and FuseReplacement
1. Opencoverdoor,pulltheFUSEPULLleverandrotatetoleft.Removethefuse.
2. RemovetheLineVoltageSelectionCard.Positionthecardsothelinevoltageappearsattop-left
corner.Pushthecardfirmlyintotheslot.
3.RotatetheFUSEPULLlevertoitsnormalposition.Inserta fuseofthecorrectvalueintheholder.
Closethecoverdoor.
Figure 2. Line Voltage and Fuse Selection
OperatingEnvironment
The operatingenvironmentshouldbewithinthefollowinglimitations:
TemperatureQoCto
+55oC
Humidity5%to95%(maximumwetbulbtemperature= 40°C)
Ahitude<4600meters(15000feet)
Airflow5.8mm(0.23in.)minimumclearanceunderneaththe
instrumentandsufficientclearancebehindthe
instrumentforairflow thatisnotobstructed.
RackMounting
Rackmountinginformationisprovidedwiththerackmountingkit.Ifthekitwasnotorderedwiththe
instrumentasanoption,itmaybeorderedthroughthenearestHewlett-Packardoffice.Forrack-mount
kitpartnumbers,refertoMechanical Options intheGeneral Information sectionofthismanual.
9

Installation Model11848A
Jhble 2. AC Power Cables Available
Plug
Type Cable
HPPart
Number
Plug
Description Cable
Length
(Inches) Cable
Color ForUse
InCountry
250V 8120-1351
8120-1703 90°/STRBS1363A*
90°/90° 90
90 MintGray
MintGray UnitedKingdom.
Cyprus,Nigeria.
Rhodesia.
Singapore
250V 8120-1369
8120-0696
STR/STR
NZSS198/ASC112*
STR/900
79
80 Gray Gray Austrailia.
NewZealand
250V 8120-1689
8120-1692 STR/STR*
STR/900
79
79 MintGray
MintGray EastandWest
Europe,Saudi
Arabia,Egypt,
(unpolarizedin
manynations)
125V
100V
(Sameplugasabove)
8120-1378
8120-1521
8120-1751
STR/STRNEMA5-15P*
STR/900
STR/STR
80
80
90
JadeGray
JadeGray
JadeGray
UnitedStates.
Canada.Mexico,
Phillipines,Taiwan
U.S./Canada
8120-4753
8120-4754 STR/STR
STR/900
90
90 DarkGray
DarkGray Japanonly
Japanonly
250V
dj^ 8120-2104
8120-2296
8120-3997
STR/STRSEV1011
1959-24507
Type12
STR/900
STR/900
79
79
177
Gray
Gray
Gray
Switzerland
250V 8120-0698 STR/STRNEMA6-15P 90 Black UnitedStates,
Canada
250V 8120-2956
8120-2957
8120-3997
90°/STR
90790°
STR/STR
79 Gray Denmark
250V 8120-4211
8120-4600 STR/STR*IEC83-B1 STR/900
79
79 Black
Gray SouthAfrica,India
250V 8120-1860
8120-1575
8120-2191
8120-4379
STR/STR*CEE22-V1
(SystemsCabinetUse)
STR/STR
STR/900
90790°
59
31
59
80
JadeGray
JadeGray
JadeGray
JadeGray
Partnumbershownforplugisindustryidentifierforplugonly.NumbershownforcableisHPPartNumberforcomplete
cableincluding plug. E = Earth Ground; L = Line;N= Neutral;STR= Straight
rev.07OCT87