Download pdf - R&S EFA43 TV Test Receiver (DVB-T) - Rohde & Schwarz · 04.00 July ¸EFA43 TV Test Receiver (DVB-T) ... test receivers meet the demand for high- ... Solomon decoder Synchro-nization

Version

04.00

July

2010

¸EFA43 TV Test Receiver (DVB-T)Comprehensive analysis/demodulation/monitoring of digital terrestrial TV signals

discontinued

AllDVB-TmodessupportedinlinewithETSIEN300744

High-enddemodulator High-endtestreceiver Standardtestreceiver

Areasofapplication:production,singlefrequencynetworkinstallationandadjustment,monitoring,coverage,researchanddevelopment,service

Comprehensivemeasurementandmonitoringfunctions

SFNoption Simple,user-friendlyoperation Modulardesign–easyretrofittingofoptions

IEC/IEEEbusandRS-232-Cinterface MPEG-2decoderoption

2 ¸EFA43TVTestReceiver(DVB-T)

InordertobroadcastTVprogramswithoptimumqualityandincompliancewithDVB-Tstandards,allcomponentsofthetransmissionchainmustbeofhigh-gradedesign.Butnotonlydoesthequalityofthecomponentsplayamajorrole.Itmustalsobeensuredthatallcomponentsoperateinthespecifiedrangesandthatpossibleproblemsaredetectedearlyon.Inthiscontext,theDVB-Tmodelsofthe¸EFAfamilyoftestreceiversmeetthedemandforhigh-precisionreceptionmeasurements.Com-pactindesignandfeaturingcompre-hensiveautomatictestfunctionality,theinstrumentisidealforR&D,modulatorproductiontesting,andin-servicemoni-toringofTVsignals.

¸EFA – the test reference for terrestrial digital TV

Standardtestreceiver(model.40) Selectivereceiver Typicaluseinthefieldwhereadjacentchannelsneedtobefiltered

High-endsynthesizerwithlowphasenoise Excellentprice/performanceratio

High-endtestreceiver(model.43+¸EFA-B3option)

OutstandingSNRandimprovedintermodulationcharacteristics

RejectionofimagefrequencyandIF TwoadditionalselectiveRFinputs(50Wand75W) Extendedfrequencyrangefrom4.5MHzto1000MHz

High-enddemodulator(model.43) Widebandinput(non-selectivereceiver),tunable Typicallyusedfortransmittertesting OutstandingSNR,excellentintermodulationcharacteristics

High-endsynthesizerwithextremelylowphasenoise

discontinued

¸EFA43TVTestReceiver(DVB-T) 3

Available models and options

Standardtestreceivers High-enddemodulators High-endtestreceivers

Models .40 .12 .78 .43 .33 .89 .43 .33 .89 Slotsneeded

Option Designation OrderNo. DVB-T B/G D/KorI

DVB-T B/G D/KorI

DVB-T B/G D/KorI

¸EFA-B2 NICAMDemodulator(StandardB/GorD/K)

2067.3610.02 – – – 1

¸EFA-B2 NICAMDemodulator(StandardI)

2067.3610.04 – – – – 2) – – 1

¸EFA-B3 RFSelection 2067.3627.02 – – – 1

¸EFA-B4 MPEG-2Decoder 2067.3633.02 1) 1) 1)2) 1)2) – – 1

¸EFA-B6 VideoDistributor 2067.3656.02 – – – 3) 3) 0

¸EFA-B7 SwitchableSoundTrap(StandardB/G)

2067.3710.02 – – – – – – 1

¸EFA-B10 OFDMDemodulator 2067.3740.02 7) 7) 7) 7) 7) 7) 1

¸EFA-B11 6MHzSAWFilter 2067.3691.00 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 0

¸EFA-B12 7MHzSAWFilter 2067.3591.00 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 1)4)5) 0

¸EFA-B13 8MHzSAWFilter 2067.3579.02 – 4)6) 4)6) – 4)6) 4)6) – 4)6) 4)6) 04)6)

¸EFA-K10 SFNFrequencyOffsetMeasurement

2067.9454.02 6) 6) 6) 6) 6) 6) 0

¸ZZT-314 CarryingBagfor19"units,3heightunits

1001.0523.00 0

Eachbaseunithasthreefreeslotstotakeupoptions.

includedinbaseunit mustbeorderedwithbaseunit available –notapplicable

1) Canberetrofittedif¸EFA-B10or¸EFA-B20isbuiltin.2) Cannotberetrofittedif¸EFA-B3isbuiltin.3) Requires¸EFA-B4.4) Max.3SAWfilters.5) ¸EFAmodels.63or¸EFA-B20:¸EFA-B11and¸EFA-B12cannotberetrofittedinparallel.6) Canberetrofittedif¸EFA-B10isbuiltin.7) Only¸EFA-B10or-B20possible(sameslotneeded).

The complete ¸EFA family at a glance

Standardtestreceiver Model.40:digitalTV,DVB-T

Standardtestreceivers Model.60:digitalTV,DVB-C Model.12:analogTV,standardB/G Model.78:analogTV,standardD/KorI

Standardtestreceivers Model.50:digitalTV,ATSC/8VSB Model.70:digitalTV,ITU-TJ.83/B Model.90:analogTV,standardM/N

High-endtestreceiver Model.43incl.¸EFA-B3option:digitalTV,DVB-T

High-endtestreceivers Model.63incl.¸EFA-B3option:digitalTV,DVB-C

Model.33incl.¸EFA-B3option:analogTV,standardB/G

Model.89incl.¸EFA-B3option:analogTV,standardD/KorI

High-endtestreceivers Model.53incl.¸EFA-B3option:digitalTV,ATSC/8VSB

Model.73incl.¸EFA-B3option:digitalTV,ITU-TJ.83/B

Model.93incl.¸EFA-B3option:analogTV,standardM/N

High-enddemodulator Model.43:digitalTV,DVB-T

High-enddemodulators Model.63:digitalTV,DVB-C Model.33:analogTV,standardB/G Model.89:analogTV,standardD/KorI

High-enddemodulators Model.53:digitalTV,ATSC/8VSB Model.73:digitalTV,ITU-TJ.83/B Model.93:analogTV,standardM/N

See this data sheet See data sheet PD 0758.2254.32 See data sheet PD 5214.4836.32

discontinued discontinued discontinued

discontinued


Commontoallmodels In-depthmeasurementcapabilities Simple,user-friendlyoperation Modulardesign–easyretrofittingofoptions

Generalmeasurementfunctionsfor– RFinputlevel– carrierfrequencyoffset– bitrateoffset– BER(beforeViterbi,beforeandafterReed-Solomon)

MPEG-2transportstreamoutput(serialorparallel)

Alarmmessagesformeasurementfunctions,internalstorage

Sevenalarm-triggeredrelaysforswitchingexternaldevices

Integratednoisegeneratorformeasurementofnoisemargin

IEC/IEEEbusandRS-232-Cinterface

MPEG-2decoder(¸EFA-B4option)

RealtimeanalysisinlinewithETSITR101290

Errorreport Videoandaudiooutput

Videodistributor(¸EFA-B6option)8)

Providesfourvideooutputs(twoonfrontandtwoonrearpanel)

6MHzSAWfilter(¸EFA-B11option)

Adjacent-channelrejection InlinewithUSrequirements

7MHzSAWfilter(¸EFA-B12option) DesignedinlinewithDVB-Tstandards Adjacent-channelrejection InlinewithEuropeanandAustralianstandards

8) Onlypossiblewith¸EFAmodel.43andif ¸EFA-B4option(MPEG-2decoder)isfitted.

8MHzSAWfilter(¸EFA-B13option)

DesignedinlinewithDVB-Tstandards Adjacent-channelrejection InlinewithEuropeanstandards

Analoganddigitalfunctionsinoneinstrument

UsingtheOFDMdemodulatoroption(¸EFA-B10)demodulators(models.33and.89)canbeupgradedtodual-modeversions:analoganddigitalinoneunit.

Fully compatible with ETSI EN 300744

Characteristics

The¸EFADVB-Ttestreceiver,fullycompatiblewiththeETSIEN300744standard,receives,demodulates,de-codes,andanalyzesOFDM(orthogonalfrequencydivisionmultiplex)signals.Allkeyparametersfordemodulatingthereceivesignalcanbeselectedautomati-callyormanually:

6MHz,7MHzor8MHzoperatingbandwidth

2Kor8KOFDMmodulation QPSK,16QAMor64QAMconstellationdiagram

1/2,2/3,3/4,5/6or7/8coderate 1/4,1/8,1/16or1/32guardinterval a=1,2or4hierarchicaldemodulation

Reed-Solomonerrorcorrection204/188

6MHz,7MHzor8MHzSAWfilterbandwidth(selectable)

Theoperatingprincipleofthereceiverisbasicallythesameasthatoftheotherreceiversfromthe¸EFAfamily,ex-ceptforcertainfunctionsspecifiedinstandards.

Realtime signal analysis

The¸EFA’spowerfuldigitalsignalprocessingprovidesfastandthoroughanalysisofthereceivedDVB-Tsignal.Analysisisperformedsimultaneouslywith,butindependentlyof,demodula-tionanddecoding.TheMPEG-2trans-portstreamispermanentlyavailablefordecodingaswellasforvisionandsoundreproduction.

Owingtoitsrealtimeanalysiscapabil-ity,thehighnumberofmeasuredvaluesnecessaryforthecomplexcalculationanddisplayprocessesaremadeavail-ableforsubsequentmathematical/statisticalprocessinginanextremelyshort,asyetunequalled,time.Becauseofitshighspeeddataacquisition,the¸EFAtestreceiveristheidealchoicenotonlyinR&Dbutalsoinproductionenvironmentswhereshortmeasurementcyclesareessential.

Features (seefiguresonpages6to9)

The¸EFA-Tfeaturesawiderangeofinnovativemeasurementfunctions,allowingcomprehensive,in-depthsignalanalysis.Inadditiontomeasuringgeneralparameters(Fig.1)suchasbiterrorratio(BER),morethoroughanalysisincludesthefollowing:

Residual picturecarrier measurement

¸EFA-B8

Analog TVdemodulator

Switchable videobandwidth

¸EFA-B7

Pilot deviationmeasurement¸EFA-B9

NICAMdemodulator/decoder

¸EFA-B2

OFDMdemodulator

¸EFA-B10

6 MHz SAW filter¸EFA-B11




MPEG-2 decoder¸EFA-B4

Video distributor¸EFA-B6

Video

Video

Audio

Audio

Intercarrier

MPEG-2 transportstream input

MPEG-2 transportstream output

V

A

Demodulator and decoder modules, options

IF (picture only)

IF output

Selectivetransposer

Selectivetransposer

Attenuator0 dB to 55 dB

Attenuator0…55 dBAttenuator

0 dB to 55 dB

Attenuator-switch

low/high

Non-selectivetransposer

SelectiveRF input

50 Ω or 75 Ω

SelectiveRF input

50 Ω and 75 Ω

Non-selectiveRF input

50 Ω

¸EFA12/40/50/60/70/78/90

¸EFA33/43/53/63/73/89/93 + with optional RF preselection (¸EFA-B3)

¸EFA33/43/53/63/73/89/93

Frontend standard test receiver

Frontend high-end test receiver

Frontend high-end demodulator

Available option

Non-available option with this unit

Energydispersal

Reed-Solomondecoder

Synchro-nization

FFT2/8 K

Channelestimation

Inner de-interleaver

Viterbidecoder

Outer de-interleaver

MPEG-2interface

NCO

OFDMdemodulator

A

D

Osc

+Inputstage

AGC 1IFout

IFin

SAW

8(7/6) MHzfIF,1 = 36 MHz

fOsc

LPFfIF,2

fCLK

Leveldetector

Noisegenerator

AGC 2

DSP:Constellation

analyzerParameteranalyzer

I/Q(f)MER(f)

MPEG-2transportstream

Displaycontroller

Control bus

IF input


I/Qconstellationdiagrams(Fig.2):thenumberofsymbolstobedisplayedisuser-selectable,range:1to999999symbols

CalculationofI/Qparameters:ampli-tudeimbalance,quadratureoffset,carriersuppression,phasejitter,SNR,andMER(modulationerrorratio)(Fig.3)

Frequencydomaindisplays,e.g.MER(f),I|Q(f)orinterferer(Figs4,5and6)

Amplitude,phaseandgroup-delay/frequencyresponsedisplays(Fig.7)

Amplitudespectrum,includingautomaticshoulderattenuationmea-surementinlinewithETSITR101290(Fig.8)

Long-termmonitoringofdedicatedparametersthroughthehistoryfunction(Fig.9),monitoringtime

Frequencyoffsetmeasurementforanalysisofsinglefrequencynetworks(SFN)

DVB-T: OFDM modulation for terrestrial broadcasting of digital TV signals

TheDVB-TstandardemploysOFDM(orthogonalfrequencydivisionmultiplex)modulation.Thismodulationisappliedtothedownconvertermodule(selec-tiveornon-selective,dependingonthemodel)whichconvertsthesignaltoa36MHzIF.Itcanthenbefilteredbydif-ferentSAWfilters(dependingontheoc-cupiedbandwidth),andGaussiannoisecanbeinternallyaddedformarginmea-surements.

TheIFsignalisconvertedtothebase-bandusinganumericcontroloscillator.AfastFouriertransform(2kor8k)trans-latesthesignalfromthetimedomaintothefrequencydomain.Then,channelestimationisusedtocorrectthesignal’samplitude,phase,anddelay(continuousanddiscretepilotsareusedforthistask)toeliminatemostofthedegradationin-troducedduringRFtransmission.

DatapacketsarethenappliedtotheViterbiconvolutionaldecoder,datadeinterleaver(outerde-interleaver),Reed-Solomondecoderanddatade-randomizer(energydispersal).Finally,theMPEG-2interfacefeedsthedemodu-latedMPEG-2transportstreamtothehardwareoutputinterface(TSSPIorTSASI)(seeFig.below).

Block diagram of the ¸EFA TV test receiver, model .43 (DVB-T)

selectablefrom60sto1000days

LinearityanalysisfromamplitudedistributionhistogramorCCDF(Figs10and11)

Receivedimpulseresponsewithinandoutsideoftheguardinterval–includingzoomfunction(Fig.12)

discontinued

discontinued


Fig.2:ConstellationdiagramTheconstellationdiagramisalwaysthebestwaytorepresentdigitalmodula-tion.Itisalsothebestvisualtoolforinterpretingmeasurementresults,forexamplefromcarriersuppressionorI/Qamplitudeimbalancemeasurements.Forin-depthanalysis,itispossibletoadjustthedisplayednumberofsymbols(100symbolsareshowninthisexample).Ifrequired,the¸EFAcansetthenumberautomaticallytoobtainanopti-malrefreshrate.

Fig.1:MainmeasurementmenuAllparametersforthedemodulatedDVB-Tchannelaredisplayedonasinglescreenandcanbecheckedataglance:

ThethreeBERs(biterrorratio)–beforeViterbidecoder,beforeandafterReed-Solomondecoder–provideafastqualityoverviewofthedemodulatedsignal

Thefrequencyoffsetofthecentralcarrier

WhetherthetransmittedTPSpilotsarecorrect(comparedwiththeinternaldemodulatorsettings)

TPSinformationforDVB-H

Hint:TheinternalnoisegeneratorcanbeactivatedtoperformEND(equivalentnoisedegradation)measurementsornoisemarginmeasurementswhicharebasedontheBERmeasurement.

Fig.3:OFDMparametersAllOFDMparametersarecalculatedfromtheconstellationdiagramfortheselectedcarriers.Itisthenveryeasytomeasure,forexample,thesuppressionoftheRFcentralcarrierofamodulatorin2Kmode(carrier852–discretepilot)evenin8Kmode(carrier3408–continu-ouspilot).

1

3

2


Fig.4:MERasafunctionoffrequencyMERasafunctionofthefrequencyisoneofthemostpowerfulmeasurementsthatthe¸EFAcanperform.Itdis-playstheMERforeveryQAMmodulatedcarrieroftheOFDMsignal.Ataglance,youcanmeasuretheoverallqualityofthetransmitterundertest.

WithSTARTCARRandSTOPCARR,youcanquicklylocateanyimpairedQAMcarrierintheOFDMsignal.Co-channelinterferencecanalsobemeasuredanddisplayedwhenaninterferencemea-surementisperformed(interference-to-carriermeasurement).

4

6

5

Fig.5:I/QversusfrequencyThisdiagramshowssymbolsversusfre-quency.Inotherwords,thequadrature(Q)andthein-phase(I+90°)informa-tionoftheconstellationdiagramaredis-playedforacompletesymbol.

Aglanceattheconstellationdiagramimmediatelyshowsanyerrorsordegra-dations.

Fig.6:I/Qversusfrequency(zoom)Effectsofinterestcanbelocatedmorepreciselybyvaryingthenumberofsym-bolsandcarriersthataredisplayed.Anyimpairment(carrier1076isclearlymarkedondisplay)canthenbelocalizedquicklyandeasily.

Thesamemethodcanbeusedforallfrequencydomainmeasurements–forexampleMERversusfrequencyorthepolarplot.


Fig.7:ChannelestimationIntheOFDMdemodulationchain,channelestimationcompensatesforfrequency,phase,anddelaydegrada-tionsthathavebeenintroducedduringDVB-Ttransmission.Itistheneasyforthe¸EFAtooutputtheamplituderesponse,thephaseresponse,andthegroupdelay,displayingthechannelesti-mationcoefficientsversusfrequency.

Thepolarplotmayalsohelptointerpretveryfastechoes(difficulttovisualizewithimpulseresponsemeasurements).

Fig.8:SpectrumanalysisOwingtothisintegratedfeature,youwillnotneedaseparatespectrumana-lyzeranymore.Allbasicspectrumana-lyzerfunctionsareprovided,forexamplestart/stopfrequency(orcenter/span),aswellasseveraldetectionandaveragingmodes.

Theautomaticshoulderattenuationmeasurement(strictlyinlinewithETR290),makescheckingtheperfor-manceofanyDVB-Ttransmitterveryeasy.

7

9

8

Fig.9:HistoryfunctionThismeasurementisjustwhatisre-quiredforlong-termDVB-Ttransmittermonitoring.Mostkeyparameters(level,MER/dB,MER/%,BER,andsynchroniza-tioninformation)arethereforedisplayedingraphicalform.Thismodecanalsodisplayallvaluesnumerically(average,max,min,current).BERandlevelmea-surementsruncontinuouslyandarein-dependentofothermeasurements.

Hint:Resultsareeasytoreadfromaremotelocation.


10

12

11

Fig10:AmplitudedistributionfunctionThemeasurementfunctionfordisplayingtheamplitudedistributionortheCCDF(complementarycumulativedistribu-tionfunction)isusedtodetectnonlin-eardistortions.Thefrequencydistribu-tionoftheDVB-Tsignalisdividedintoseveral1dBwindowstodeterminetheamplitudedistribution.Informationonthecrestfactorisobtainedfromthefre-quencydistributionanddisplayedintheupperright-handcornerofthegraph.

Thereferencevaluesaremarkedbyshorthorizontallines.

Fig11:Complementarycumulativedistributionfunction(CCDF)Incontrasttotheamplitudedistribution,eachtracepointindicateshowoftenacertainvoltagelevelisattainedorex-ceeded.

Theidealfrequenciesaredisplayedasshort,horizontallinesat1dBintervals(referencevalues)sothattheamplitudedistributionoftheappliedsignalcanbecomparedwiththatofanidealDVB-Tsignal.Anydeviationfromtheidealdis-tributionisthenidentifiedbythedevia-tionsofthecolumnheightsandtheval-ueofthecrestfactor,forexampleduetoclippinginthetransmitteroutputstage.

Fig12:ImpulseresponseTheimpulseresponsemeasurement(withintheguardinterval)isveryuse-ful.Especiallysoforsinglefrequencynetwork(SFN)adjustment.Themea-surementletsyouvisualizeandmeasure(numericvalues)themainDVB-Tsig-nal(0dB,reference),echoes,andpre-echoes.Thezoomfunctionletsyouvisu-alizefastechoesthatmayoccurinurbanareas(reflectionsfrombuildings).

Tosuittheapplication,thex-axisunitandscalecanbechanged,forexamplefromµstokmorevenmiles.

Theunique¸EFA-K10SFNoptionaddsfrequencyoffsetmeasurementca-pability,referencedtothemainimpulse,totheimpulseresponsefunction.Theaccuracyistyp.<0.3Hz.ThisenablesyoutodetermineataglancewhethertheSFNconditionsaremet,withouthavingtoconnectthe¸EFAtoanexternalGPSreference.

Fig.13:ConfigurationofalarmrelaysAlarmscanbesignaledviasevenintegratedrelays.Anassignmenttableisavailableforconfiguringthealarmrelays.

13


Typical applicationsProductiontestingonmodulatorsandtransmitters(calibrationandtest)The¸EFA’sanalysiscapabilitiesmakeitpossibletopinpointproblemssuchasinterferersandinadequatecarriersuppres-sion:Theconstellationdiagramshowsthesymbols,butonlyifasinglecarrierisaffected–thedifficultyislocalization.Thisisex-actlywhattheI/Qmeasurementfunctiondoes:Symbolsaredis-playedasafunctionofcarriers(frequencydomain)tolocatetheprobleminthespectrumdisplay.Oncetheinterfererislocalized,theconstellationdisplaycanbeusedforfurtherevaluation.ThisapproachcanalsobeusedwiththeMER-vs-frequencymeasure-mentfunction.

Transmitterinstallationandadjustmentofsinglefrequencynetworks(SFN)Thetimedomainanalysisextendsthe¸EFA’srangeofappli-cationstoSFNinstallationandadjustment–anareawherespec-trumandimpulse-responseanalysisareveryuseful.Theimpulseresponsefunctionmakesitpossibletovisualizethedelaybetweentwotransmittersatareceptionpoint.Thismeasurementfunctioncanbeusedtooptimizethedelaybetweenthetransmitters.Thezoomfunctionmakesitpossibletoseefastechoes,forexampledirectreflectionsfromabuilding,mountain,etc.InordertocheckwhetherallSFNtransmittersoperateonexactlythesamefrequency,the¸EFAcanfurthermorebeequippedwiththe¸EFA-K10option(seepage9).Togetherwiththeimpulseresponsefunction,thisoptionmakesitpossibletomonitorallparametersthatareimportantforSFNoperationandthusensurescorrectoperation.

Coveragemeasurementsonterrestrialsignals(seephotoabove)Toallowmeasurementstobeperformedundereventheworstreceptionconditions,asinglekeystrokewilloptimizetheOFDMde-modulatorformobilereception(wherealotofimpairmentsaffecttransmissionquality)orstationaryreception.Thealgorithmsforspeedandchannelequalizationareoptimized,asisinternallevelcontrol.

MonitoringTVtransmittersandtransposersThe¸EFAistheperfectsolutionforDVB-Tsignalmonitoring.Analarmistriggeredifoneoftheselectedparametersexceedsthethresholdthathasbeenset.Theincidentlevel,OFDMsynchronization,MER(modulationerrorratio),BER(beforeViterbiandbeforeReed-Solomondecoders),andtheMPEG-2transportstreamoutputcanbecheckedinrealtimeindependentofothermeasurementsanddecoding.Ifanerroroccurs,a1000-rowregisterisavailabletorecordthedate,time,anddesignationoftheevent.The¸EFA-B4MPEG-2decoderoptionextendsmonitoringcapabilities.RealtimemeasurementsinlinewithtestspecificationsforDVBsystems(ETSITR101290–priorities1,2,and3)canbeperformedandmakethe¸EFAacompleteDVB-Tmonitoringsystem.

! mostimportantmeasurement requiredmeasurementThe table below summarizes the measurements required for the various DVB-T applications

DVB-TOFDMapplication Leve

l

BER

MER

SNR

Carri

ers

uppr

essi

on

Quad

ratu

ree

rror

Ampl

itude

imba

lace

Phas

ejit

ter

Cons

tella

tion

diag

ram

MER

(f)

I/Q(f)

Spec

trum

/sho

ulde

rat

tenu

atio

n

Ampl

itude

(f)/

phas

e(f)/

grou

p

Ampl

itude

di

strib

utio

nCC

DF

Impu

lse

resp

onse

Hist

ory

Freq

uenc

yof

fset

Productionofmodulatorsandtransmitters !

TransmitterinstallationandSFNadjustments ! !Coveragemeasurementofterrestrialsignals !

MonitoringofTVtransmittersandtransposers !

Research&development !

Service !



Specifications

RealtimemeasurementfunctionsinlinewithtestspecificationsforDVBsystems(ETSITR101290)

Model-specific characteristics

DVB-Tstandardtestreceiver(model.40)

DVB-Thigh-endtestreceiver(model.43)with¸EFA-B3option

DVB-Thigh-enddemodulator(model.43)

RFinput selective non-selective

Connector 50Wor75W,BNCorNfemale,frontorrearpanel(seeconfigura-tionsheet3))

50W,Nfemale,rearpanel,and75W,BNCfemale,rearpanel

50W,Nfemale,rearpanel

Returnloss ≥14dBinchannelwith50Wcon-nectorandinputattenuation≥10dB≥12dBinchannelwith75Wcon-nectorandinputattenuation≥10dB

≥17dB(typ.>20dB)inchannelwith50W connector≥14dB(typ.>17dB)inchannelwith75W connector

≥30dB

Frequencyrange 48MHzto862MHz 4.5MHzto1000MHz1) 45MHzto1000MHz

Levelrange(lowervalues:QPSKonly1)2))

–72dBmto+20dBm(withLOWNOISE,preamplifier=OFF)–82dBmto–47dBm(withLOWNOISE,preamplifier=ON)–88dBmto–47dBm(withLOWNOISE,preamplifier=ONandHIGHADJCHANPOWER=ON)

–85dBmto+14dBm(lownoise)–80dBmto+20dBm(normal)–80dBmto+20dBm(lowdistortion)–90dBmto–10dBm(lownoiseandHIGHADJCHANPOWER=ON)

–50dBmto+20dBm

Noisefigure(50Winput,RF≥47.15MHz)

typ.12dB(lownoise)typ.7dB(preamplifierandlownoise)

typ.7dB(lownoise)typ.9dB(normal)typ.11dB(lowdistortion)

Imagefrequencyrejection ≥70dB(VHF)and≥50dB(UHF) 100dB

IFrejection 100dB

LocaloscillatorResolutionFrequencyerror

1Hz≤2×10–6

OFDMdemodulatorcharacteristicsInherentMER2)

InherentSNR2)

≥38dB≥39dB

≥40dB≥41dB

≥42dB≥43dB

RF selection for demodulator – ¸EFA-B3 option

Common characteristics

IFinput 50W,BNCfemale,rearpanel,36MHz

Returnlossinchannel ≥30dB

Levelrange –30dBmto–5dBm

IFoutput 50W,BNCfemale,rearpanel,36MHz

Returnlossinchannel ≥20dB

Level,regulated –17dBm

1) Atlowinputfrequenciessuchas4.57MHz:additionaltilt(typ.0.7dBpp),minimuminputlevel:–30dBm,SAWfilterON.2) ValidforinstrumentsdeliveredasofJanuary2001.3) AvailablefromyourlocalrepresentativeorfromtheRohde&Schwarzwebsite,searchterm:EFA.

MHz100 200 300 400 500 600 700 800 900 10005

6

7

8

9

10

Noise figure (low noise mode)

discontinued


10MHzreferenceinputLevelrange

50W,BNCfemale,rearpanel–20dBmto+16dBm

10MHzreferenceoutputLevel

50W,BNCfemale,rearpaneltyp.+11dBm

OFDMcharacteristics

Bandwidthoperation 6MHz,7MHzand8MHz,switchable

SAWfilters 6MHz,7MHz,8MHzorOFF

Bitrateclockinaccuracy <10ppm(typ.<3ppm)

FFTmode 2Kor8Kcarriers

Constellation QPSK,16QAM,64QAM

Guardinterval 1/4,1/8,1/16,1/32

Coderate 1/2,2/3,3/4,5/6,7/8

Hierarchicalmodulation OFF,a =1,a =2,a =4

Equivalentnoisedegradation(END)at64QAM;R2/3 ≤1.5dB

Channelcorrection self-adapting

I/Qinversion automatic,withindication

BERprocessing beforeViterbidecoder,beforeandafterReed-Solomondecoder

MeasurementsLevel,frequencyoffset,bitrateoffset,TSbitrate/BER(biterrorratio)beforeViterbidecoder,beforeandafterReed-Solomondecoder/MER(modulationerrorratio)indBand%/SNR(signal-to-noiseratio),carriersuppression(2Kand8K)/quadratureerror,amplitudeimbalance,phasejitter/shoulderattenuation(upper/lower)inlinewithETSITR101290/crestfactor

GraphicdisplaysConstellationdiagram,start/stopfrequenciesandnumberofsymbolsselectable/MER(f)indB:RMSandmax.values,start/stopfrequenciesselectable/MER(f)in%:RMSandmin.values,start/stopfrequenciesselectable/Interference(f)indB:RMSandmax.values,start/stopfrequenciesselectable/I/Q(f),start/stopfrequen-ciesandnumberofsymbolsselectable/frequencyspectrum,start/stopfrequenciesselectable/amplitude(f),start/stopfrequenciesselectable/phase(f),start/stopfrequenciesselectable/groupdelay(f),start/stopfrequenciesselectable/polarplot,start/stopfrequenciesselectable/amplitudedistribution(RF)/CCDF(RF)/impulseresponse(t)withzoom(max.zoom=20)SFNfrequencyoffset(¸EFA-K10)/historyforlevel(alllevelunitsavailable),MER(dBand%),BERbeforeViterbi,BERbeforeReed-Solomondecoder,allmeasurements:MAXandMINandAVERAGEandMAXMINdetectorsrunninginparallel

DVB-Hmeasurementswith¸EFA43orwith¸EFA-B10option

2K,n

ativ

ein

terle

avin

g

2K,i

n-de

pth

inte

rleav

ing4)

4Km

ode

8K,n

ativ

e,in

-dep

thin

ter-

leav

ing

Level

yes

yes

yes

yes

Constellation

–

OFDMparameters

MER/EVM

MER(f)

I/Q(f)

Impulseresponse

BERbeforeViterbi–BERbeforeReed-Solomon

BERafterReed-Solomon

Spectrum/CCDF

yes

yes

DVB-Hsignaling(TPS)–TPSlengthindicator

4) “FECSyncnotrequired”mustbeset.


ProtectionratioforDVB-TinterferedwithbyanalogTVintheloweradjacentchannel(n-1),64QAM,R2/3,8MHz,QEF,LOWDISTORTIONandHIGHADJCHAN,POWER=ON

typ.44dB

ProtectionratioforDVB-TinterferedwithbyanalogTVintheupperadjacentchannel(n+1),64QAM,R2/3,8MHz,QEF,LOWDISTORTIONandHIGHADJCHAN,POWER=ON

typ.42dB

MPEG-2TSparalleloutput synchronousLVDS(188byte,204byte,TSSPI),100W

MPEG-2TSASIoutput asynchronousserialMPEG-2transportstream(TSASI);75W

SERDATAoutput serialdatastreamaheadofViterbidecoder;75W

SERCLOCKoutput clockoutputforSERDATA;75W

Alarmmessages level,synchronization,BERbeforeViterbi,BERbeforeandafterReed-Solomon,datatransmissionerror

Storage withdateandtime,upto1000lines

Memoryforinstrumentsetupstorage 0to4

Testparameters Range Resolution Error

Level dependingonmodel,seeabove 0.1dB <3dB,typ.<1dB

MERdB(modulationerrorratioindB) 18dBto30dB30dBto35dB

0.1dB0.1dB

≤1dB≤1.2dB

MER%(modulationerrorratioin%) 1.9%to3.2%3.2%to12.5%

0.01%0.01%

≤14%ofactualvalue≤12%ofactualvalue

SNR(signal/noiseratio) 18dBto30dB30dBto35dB

0.1dB0.1dB

≤0.7dB≤1.0dB

I/Qamplitudeimbalance 0.00%to5.00% 0.01% ≤0.05%

I/Qquadratureerror 0.00°to5.00° 0.01° ≤0.05°

Carriersuppression –5dBto+25dB+25dBto+30dB

0.1dB0.1dB

≤1dB≤3dB

Frequencyoffset10MHzreference,internal10MHzreference,external

±300kHz±300kHz

1Hz1Hz

≤280Hz+2ppm×RF≤1Hz

Bitrateoffset10MHzreference,internal10MHzreference,external

±40ppm±40ppm

0.1ppm0.1ppm

≤10ppm,typ.≤3ppm≤0.5ppm

MPEG-2TSbitrate upto51600Mbit/s 1bit/s <35bit/s

BERbeforeViterbi 1.0×10–2to0.1×10–15 0.1×10–exponent –

BERbeforeReed-Solomon 1.0×10–3to0.1×10–15 0.1×10–exponent –

BERafterReed-Solomon 1.0×10–5to0.1×10–14 0.1×10–exponent –

Crestfactor 0.0dBto15.0dB 0.1dB 0.1dB

Echovalues(max.=5echoes,remote:25echoes) 0.0dBto–40.0dB 0.1dB,10ns 0.5dB,30ns

SFNfrequencyoffset(¸EFA-K10option) ±5kHz 0.01Hz ≤0.3Hz

MPEG-2 decoder – ¸EFA-B4 option

Realtimemeasurementfunctions:simultaneousmonitoringofallsignalsintransportstreamRealtimemeasurementfunctionsinlinewithtestspecificationsforDVBsystems(ETSITR101290):priorities1,2,and3

SignalformatTransportstreamDatarateoftransportstreamLengthofdatapackets

inlinewithISO/IEC1-13818upto54Mbit/s188/204bytes,automaticswitchover

SignalinputInternal:fromDVBdemodulatorExternal:asynchronousserialMPEG-2transportstream,270Mbit/s(TSASI) BNCconnectoronrearpanel,200mVto1VVpp,75W

VideosignaloutputCCVS(PAL,SECAM,NTSC)Videoserialdigital(ITU-R601),270Mbit/s

BNCconnectoronrearpanel,1VVpp±1%,75WBNCconnectoronrearpanel,800mVVpp,75W


AudioConnectors

ImpedanceSignalsLevel(fullscale)Frequencyresponse(40Hzto15kHz)S/NratioTHD

LemoTriaxfemale,paired;onfrontpanel:unbalanced,onrearpanel:balanced,floating<25Wmono,left/right,sound1/sound2+6dBm±0.2dBinto600W±0.5dBrelativeto1kHz>70dB,unweighted>70dB

Video distributor – ¸EFA-B6 option

Videooutput 2×BNCfemaleonfrontpanel;2×BNCfemaleonrearpanel

Impedance 75W

Returnloss(0Hzto6MHz) ≥26dB

Levelinaccuracy ≤2%

DCoffsetofvideosignal,MPEG-2decodermode,blacklevel 0V

Decouplingofoutputs(levelvariationatterminatedoutputwhenswitchingtheotheroutputsbetweenshortcircuitandopencircuit)

≤1%

6 MHz SAW filter – ¸EFA-B11 option

Rippleinband 0.4dBpp

Rejectionofadjacentchannels >50dB(>±3.8MHz)>85dB(>±5.3MHz)withHIGHADJCHANNELPOWER=ON







Mobile reception

Whenthe¸EFA43issettoMOBILEmode(SPECFUNC:SYSTEMOPTIMIZATION),mobilereceptionisoptimized.Thefollowingmeasurementsprovidecurrentinformationabouttheperformanceofthe¸EFA43.Thesemeasurementresultsarevalidforfirmware4.60.

2K mode

Inthe2Kmode,afadedsignalsimulatingatypicalurban(TU6)receptionenvironmentisfedtothe¸EFA.Thesignalincludes6pathswithwidedelaydisper-sionandrelativelystrongpower(seeETSITR101290,AnnexK.3).

Tapnumber Delay(µs) Power(dB) Dopplerspectrum

1 0.0 –3 Rayleigh

2 0.2 0

3 0.5 –2

4 1.6 –6

5 2.3 –8

6 5.0 –10

The¸EFAwassetupasfollows:–Channelbandwidth=8MHz–Systemoptimization=mobile–SAWfilterbandwidth=8MHz

TheDopplerfrequency(whichisafunctionofspeedandradiofrequency)wasincreaseduntiltheBERbeforetheReed-Solomondecoderwas2.0E-4oruntiloneMPEGdataerroroccurredin1minute.ThefollowingtableindicatestheDopplerfrequencyinHz.


OrderofQAM Coderate Guard=1/4 Guard=1/8 Guard=1/16 Guard=1/32

QPSK 1/2 58 61 60 67

2/3 40 42 44 47

3/4 33 35 36 39

5/6 28 26 27 31

7/8 24 22 23 25

16QAM 1/2 30 26 32 35

2/3 21 25 24 24

3/4 14 9 18 16

5/6 0.2 0.5 7 5

7/8 0.4 0.2 0.3 0.3

64QAM 1/2 5 4 1 1

2/3 0.2 0.2 0 0

3/4 0.2 0 0 0

5/6 0 0 0 0

7/8 0 0 0 0

8K mode

Inthe8Kmode,a0dBechoprofileinlinewithETSITR101290,AnnexK.3,wasfedtothe¸EFA:

Tapnumber Delay(µs) Power(dB) Dopplerspectrum Frequencyratio

1 0.0 0 pureDoppler –1

2 ½TG +1

The¸EFAwassetupasfollows:–Channelbandwidth=8MHz–Systemoptimization=mobile–SAWfilterbandwidth=8MHzTheDopplerfrequency(whichisafunctionofspeedandradiofrequency)wasincreaseduntiltheBERbeforetheReed-Solomondecoderwas2.0E-4oruntiloneMPEGdataerroroccurredin1minute.ThefollowingtableindicatestheDopplerfrequencyinHz.

OrderofQAM Coderate Guard=1/4 Guard=1/8 Guard=1/16 Guard=1/32

QPSK 1/2 23.1 21.0 23.3 24.5

2/3 7.2 15.5 17.0 17.0

3/4 0.5 10.9 12.2 11.8

5/6 0 5.0 7.2 7.6

7/8 0 0 4.0 4.1

16QAM 1/2 10.2 5.1 8.8 8.8

2/3 0.2 3.4 5.7 5.9

3/4 0 2.3 4.8 5.1

5/6 0 0.1 3.0 3.4

7/8 0 0 1.0 2.3

64QAM 1/2 0 1.8 3.6 3.7

2/3 0 1.8 2.0

3/4 0 1.3 1.6

5/6 0 0 0.8

7/8 0 0 0

General data

Display monochromeLCD(320×240),backlit

Interfaces IEC625-2/IEEE488bus,RS-232-C,printer(Centronics)

Temperaturerange inlinewithIEC68-2-1/-2

Operatingtemperaturerange +5°Cto+45°C

Permissibletemperaturerange 0°Cto+50°C


Powersupply 100Vto120V/220Vto240V+10%/–15%(autoranging),50Hzto60Hz

Powerconsumption ¸EFA43:75W¸EFA43+¸EFA-B3:90W

Dimensions(W×H×D) 435mm×147mm×460mm(17.13in×5.79in×18.11in)

Weight approx.12kg(26.46lb),dependingonoptions

Ordering information

Designation Type OrderNo.

DVB-TTestDemodulator5)

Broadband,constellationdiagram,MPEG-2datastreamoutput¸EFA43 2067.3004.43

Ordering information for instruments described in data sheet PD 0758.2254.32


DVB-CTestDemodulator,broadband5)

4/16/32/64/128/256QAM,MPEG-2datastreamoutput,constellationdiagram¸EFA63 2067.3004.63

TVDemodulator,Std.B/G,dualsound5)

IF38.9MHz,RF45MHzto1000MHz,IEEEbus¸EFA33 2067.3004.33

TVDemodulator,Std.D/KorI(mono)5)

IF38.9MHz,RF45MHzto1000MHz¸EFA89 2067.3004.89

Ordering information for instruments described in data sheet PD 0757.7017.21


ATSC/8VSBTestDemodulator5)


ITU-TJ.83/BTestDemodulator5)


TVDemodulator,Std.M/N/NTSC/BTSC5)

RF45MHzto1000MHz¸EFA93 2067.3004.93

Options


NICAMDemodulatorforTVstandardB/G,D/K ¸EFA-B2 2067.3610.02

NICAMDemodulatorforTVstandardI ¸EFA-B2 2067.3610.04

RFSelectionfordemodulators(models.33/43/53/63/73/89/93) ¸EFA-B3 2067.3627.02

MPEG-2Decoder ¸EFA-B4 2067.3633.02

VideoDistributor(fourvideooutputs,onlymodels.33/89/93) ¸EFA-B6 2067.3656.02

SwitchableSoundTrap(formodels.12/33) ¸EFA-B7 2067.3710.02

OFDMDemodulator ¸EFA-B10 2067.3740.02

6MHzSAWFilter(fordigital¸EFAmodelsor¸EFA-B10,¸EFA-B20) ¸EFA-B11 2067.3691.00

7MHzSAWFilter(fordigital¸EFAmodelsor¸EFA-B10,¸EFA-B20) ¸EFA-B12 2067.3556.02

8MHzSAWFilter(for¸EFA4xor¸EFA-B10) ¸EFA-B13 2067.3579.02

8MHzSAWFilter(for¸EFA5x/6x/7xor¸EFA-B20) ¸EFA-B13 2067.3579.03

2MHzSAWFilter(for¸EFA5x/6x/7xor¸EFA-B20) ¸EFA-B14 2067.3562.00

DigitalDemodulatorPlatform ¸EFA-B20 2067.3585.02

M/N/NTSC/BTSCDemodulator ¸EFA-B30 2067.4046.02

5) Pleasefillinconfigurationsheet(availablefromyourlocalrepresentativeorfromtheRohde&Schwarzwebsite,searchterm:EFA)sothatyourtestreceiver/demodulatorcanbetailored toyourrequirements.

Certified Quality System

ISO 9001Certified Environmental System

ISO 14001

¸is

are

gist

ered

trad

emar

kof

Roh

de&

Sch

war

zGm

bH&

Co.

KG

·Tra

den

ames

are

trad

emar

kso

fthe

ow

ners

·Pr

inte

din

Ger

man

y(c

h)PD

521

3.68

35.3

2·¸

EFA4

3·V

ersi

on0

4.00

·Ju

ly2

010·

Dat

aw

ithou

ttol

eran

celi

mits

isn

otb

indi

ng·

Subj

ectt

och

ange

·©

200

1-2

010

Rohd

e&S

chw

arzG

mbH

Co.

KG,

816

71M

ünch

en,G

erm

any

www.rohde-schwarz.comEurope,Africa,MiddleEast:+4989412913774,[email protected]

NorthAmerica:1888TESTRSA(18888378772),[email protected]/Pacific:+6565130488,[email protected]

Firmware options


SFNFrequencyOffsetMeasurement(for¸EFA43or¸EFA-B10) ¸EFA-K10 2067.9454.02

DVB-C/J.83/A,C(QAM)Firmware(formodels.53/73or¸EFA-B20) ¸EFA-K21 2067.4000.02

ATSC/8VSBFirmware(formodels.63/73or¸EFA-B20) ¸EFA-K22 2067.4017.02

J.83/B(QAM)Firmware(formodels.53/63or¸EFA-B20) ¸EFA-K23 2067.4023.02

FIRCoefficientReadoutFirmware(onlyfor¸EFA5xor¸EFA-B20+¸EFA-K22)

¸EFA-K25 2067.4046.02

Recommended extras


¸EFA-SCANMeasurementSoftware(foralldigitalmodules) ¸EFA-K1 2067.9202.02

¸EFACalibrationValues ¸EFA-DCV 2082.0490.09

¸EFA-B4CalibrationValues ¸EFA-DCV 2082.0490.15

19"Adapter ¸ZZA-93 0396.4892.00

LemoTriaxconnector(mono)withconnectingcable(open) 2067.7451.00

Servicemanual 2068.0950.24

CarryingBagfor19"units,3heightunits,depth460mm ¸ZZT-314 1001.0523.00