1、INTERNATIONAL STANDARD IEC 604896 Thirdedition 199907 Radioequipmentusedinmobileservices Methodsofmeasurement Part6: Dataequipment Matrielderadiocommunicationutilisdanslesservices mobilesMthodesdemesure Partie6: Matrielnumrique Referencenumber IEC604896:1999(E)Numbering Asfrom1January1997allIECpubli
2、cationsareissuedwithadesignationinthe 60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpublicationsincludingamendmentsare available.Forexample,editionnumbers1.0,1.1and1.2refer,respectively,tothe basepublication,thebasepublicationincorporatingamendment1andthebase publicationincorpor
3、atingamendments1and2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunderconstantreviewbytheIEC, thusensuringthatthecontentreflectscurrenttechnology. Informationrelatingtothedateofthereconfirmationofthepublicationisavailable intheIECcatalogue. Informationonthesubjectsunderconsi
4、derationandworkinprogressundertaken bythetechnicalcommitteewhichhaspreparedthispublication,aswellasthelist ofpublicationsissued,istobefoundatthefollowingIECsources: IECwebsite* CatalogueofIECpublications Publishedyearlywithregularupdates (Onlinecatalogue)* IECBulletin AvailablebothattheIECwebsite*an
5、dasaprintedperiodical Terminology,graphicalandlettersymbols Forgeneralterminology,readersarereferredtoIEC 60050: International ElectrotechnicalVocabulary (IEV). Forgraphicalsymbols,andlettersymbolsandsignsapprovedbytheIECfor generaluse,readersarereferredtopublicationsIEC60027: Lettersymbolstobe used
6、inelectricaltechnology,IEC60417:Graphicalsymbolsforuseonequipment. Index,surveyandcompilationofthesinglesheets andIEC60617: Graphicalsymbols fordiagrams. * Seewebsiteaddressontitlepage.INTERNATIONAL STANDARD IEC 604896 Thirdedition 199907 Radioequipmentusedinmobileservices Methodsofmeasurement Part6
7、: Dataequipment Matrielderadiocommunicationutilisdanslesservices mobilesMthodesdemesure Partie6: Matrielnumrique PRICECODE IEC1999 Copyrightallrightsreserved Nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermiss
8、ioninwritingfromthepublisher. InternationalElectrotechnicalCommission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch XB Forprice,seecurrentcatalogue Commission Electrotechnique Internationale InternationalElectrotechnicalCommission2 604896IEC:1999(
9、E) CONTENTS Page FOREWORD 4 Clause 1General 5 1.1 Scopeandobject 5 1.2Emission characteristics5 1.3System characteristics6 1.4Normative references7 2 Termsanddefinitions. 7 3Test conditions .12 3.1 Standardtestconditions 12 3.2 Supplementarytestconditions. 12 3.3 Characteristicsofthemeasuringequipme
10、nt 18 4 Measurementsofreceiverdecoderradiofrequencyparameters . 22 4.1Sensitivity (data).22 4.2 Adjacentradiofrequencysignalselectivity(data). 24 4.3 Cochannelinterferencerejection(data) 28 4.4 Adjacentchannelselectivity(data) 28 4.5 Spuriousresponseimmunity(data) . 28 4.6 Intermodulationimmunity(da
11、ta) 32 4.7 Sensitivityundermultipathpropagationconditions(data). 36 4.8 Acceptableradiofrequencydisplacement(data) 39 4.9 Impulsivenoisetolerance(data) 41 5 Measurementsofreceiverdecoderradiofrequencyparameters(selectivecallingonly). 45 5.1 Protectionfromradiofrequencyintermodulationfalseoperation(s
12、electivecalling). 45 5.2 Falseresponsesduetonoise(selectivecalling) 46 5.3 Signallingattacktime(selectivecalling) 48 5.4 Recoverytime(selectivecalling) . 48 5.5 Requiredprotectiontime(selectivecalling) 49 5.6 Signaltoresidualoutputpowerratio(selectivecalling) 49 6 Measurementsofreceiverdecoderconduc
13、tedandradiatedspuriouscomponents 50 6.1 Conductedspuriouscomponents(dataandselectivecalling). 50 6.2 Radiatedspuriouscomponents(data) . 51 7 Measurementsofencodertransmittersradiofrequencyparameters . 51 7.1 Frequencyerror(data) 51 7.2 Averageradiofrequencyoutputpower(data) 55 7.3 Spuriousnarrowband
14、widthradiofrequencyemissionpower(data) 56 7.4 Adjacentandalternatechannelpower(data) . 58 8 Audiofrequencybandmeasurementsofencoderoutputcharacteristics (selectivecalling) . 65 8.1 Tonepulserisetime(selectivecalling) 65 8.2 Tonepulseduration(selectivecalling). 65 8.3 Tonepulsedecaytime(selectivecall
15、ing) 66604896IEC:1999(E) 3 Clause Page 8.4 Frequencyoftone(s)(selectivecalling) . 66 8.5 RMSvoltageoftone(s)(selectivecalling) 67 8.6 Encoderoveralloperatetime(selectivecalling) . 67 9 Audiofrequencybandmeasurementsofdecodercharacteristics(selectivecalling). 68 9.1 Decoderoperationlevelrange(selecti
16、vecalling) . 68 9.2 Decoderattacktime(selectivecalling) 68 9.3 Decoderrecoverytime(selectivecalling). 68 9.4 Decoderrequiredprotectiontime(selectivecalling). 69 9.5 Decoderalarmtime(selectivecalling) . 69 10 Overallmeasurementsinsimulatedsystems(selectivecalling). 70 10.1General.70 10.2 Supplementar
17、yconditionsofmeasurementforsystemresponsetimes 70 10.3 Systemoveralloperatetime(selectivecalling). 70 10.4 Systemrecoverytime(selectivecalling) 70 11 Measurementsofreceiverdecoderradiofrequencyparameter(integralantenna) . 71 11.1 Radiationsensitivity(data) 71 11.2Selectivity (data).74 11.3 Acceptabl
18、eradiofrequencydisplacement 74 11.4 Impulsivenoisetolerance(integralantenna) 74 12 Measurementsofencodertransmittersradiofrequencyparameters(integralantenna) 75 12.1 Radiatedradiofrequencypower(data) 75 AnnexA(normative) Examplesofcombiningnetworks 89 AnnexB(normative) Recommendedcharacteristicsofme
19、asuringequipment andmethodsoftest 92 AnnexC(normative) Rayleighfadingsimulator . 94 AnnexD(informative) Intermodulationresponse . 100 AnnexE(normative) Accuracyanddispersionofmethodsofmeasurementandcompliance testsforsensitivity(dataandselectivecalling)anddegradation measurements(dataandselectivecal
20、ling) . 101 AnnexF(normative) Meantimebetweenfalsecallingresponses( M)(selectivecalling) . 133 AnnexG(normative) Generalinformationonimpulsivenoiseandrandomimpulse generator . 136 AnnexH(informative) Exampleofamainspowerlineimpedancestabilizationnetwork . 142 AnnexI(informative) Measuringerroroftheo
21、ccupiedbandwidthcentrefrequency usingspectrumanalyser. 1454 604896IEC:1999(E) INTERNATIONALELECTROTECHNICALCOMMISSION _ RADIOEQUIPMENTUSEDINMOBILESERVICES METHODSOFMEASUREMENT Part6:Dataequipment FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcom
22、prising allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromote internationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrus
23、tedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participateinthispreparatorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardizatio
24、n(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwoorganization. 2) TheformaldecisionsoragreementsoftheIEContechnicalmattersexpress.asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation formallinterestedNationalCommittee
25、s. 3) Thedocumentsproducedhavetheformofrecommendationsforinternationaluseandarepublishedintheform ofstandards,technicalreportsorguidesandtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternational Standardstrans
26、parentlytothemaximumextendpossibleintheirnationalandregionalstandards.Any divergencebetweentheIECStandardandthecorrespondingnationalorregionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany equipmentdeclaredtob
27、einconformitywithoneofitsstandards. 6) AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubject ofpatentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC604896hasbeenpreparedbyIECtechnicalcommittee102: Equipm
28、entusedinradiocommunicationsformobileservicesandforsatellitecommunication systems. ThisthirdeditionofIEC604896cancelsandreplacesthesecondedition,publishedin1987, amendment1(1989)andamendment2(1991).Thisthirdeditionconstitutesatechnical revision. Thetextofthisstandardisbasedonthefollowingdocuments: F
29、DIS Reportonvoting 102/44/FDIS 102/54/RVD Fullinformationonthevotingfortheapprovalofthisstandardcanbefoundinthereporton votingindicatedintheabovetable. ThispublicationhasbeendraftedinaccordancewiththeISO/IECDirectives,Part3. IEC604896formsoneofaseriesofpublicationsunderthegeneraltitle :Radioequipmen
30、t usedinmobileservicesMethodsofmeasurement. Futurestandardsinthisserieswillcarry thenewgeneraltitleascitedabove.Titlesofexistingstandardsinthisserieswillbeupdatedat thetimeofthenextrevision. AnnexesA,B,C,E,FandGformanintegralpartofthisstandard. AnnexesD,HandIareforinformationonly. Abilingualversiono
31、fthisstandardmaybeissuedatalaterdate.604896IEC:1999(E) 5 RADIOEQUIPMENTUSEDINMOBILESERVICES METHODSOFMEASUREMENT Part6:Dataequipment 1General 1.1 Scopeandobject ThispartofIEC60489refersspecificallytomobileradiotransmittersandreceiversforthe transmissionofdata(telegraphy)signalshavingtheemissionchara
32、cteristicsgivenin1.1. ThisstandardisintendedtobeusedinconjunctionwithIEC604891.Thetermsand definitionsandtheconditionsofmeasurementsetforthinthisstandardareintendedfortype andacceptancetests. Theobjectofthisstandardistostandardizethedefinitions,theconditionsandthemethodsof measurementusedtoascertain
33、theradiofrequencyperformanceofdataandselectivecall equipment,thusmakingpossiblemeaningfulcomparisonsoftheresultsofmeasurements madebydifferentobserversandondifferentequipment. Thisstandardwillcoverthefollowingtypesofdatasignals: bitstreams; characterstrings; messages; selectivecalling. Selectivecall
34、ingdiffersfrommessagesintheirintendedfunctions;itmaybeconsideredas datasignals,analogoustomessagestransmittingonlytheinformationrequiredtoactivatean alarmononereceiveroragroupofreceivers. Themethodsofmeasurementsfortheradiofrequencyparametersareappropriateforthefour typesofdatasignals. Todifferentia
35、tebetweentheradiofrequencyparameters(e.g.adjacentchannelpower, frequencyerror)measuredinthisstandardfromthoseinassociatedstandards,thenameof eachparameterisfollowedbyeither“(bitstream)”or“(characterstring)”or“(message)”or “(selectivecalling)”.Aftereachradiofrequencyparameterthegeneralterm“(data)”isu
36、sed. Wheneachequipmentismeasured,theproperdatatype“(bitstream)”“(characterstring)” “(message)”or“(selectivecalling)”willbesubstitutedfor“(data)”. 1.2 Emissioncharacteristics Thisstandardisapplicabletothefollowingemissioncharacteristicsexpressedaccordingtothe ITURadioRegulationsEmissionDesignation. E
37、missioncharacteristicsareexpressedbyfoursymbols: a)b)c)d) where a) isthetypeofmodulationofthemaincarrier;6 604896IEC:1999(E) b) isthenatureofsignalsmodulatingthemaincarrier; c) isthetypeofinformationtobetransmitted; d) isthedetailofsignal(s)(optional). a) Typeofmodulationofthemaincarrier(firstsymbol
38、): (A) doublesideband; (H) singlesideband,fullcarrier; (R) singlesideband,reducedorvariablelevelcarrier; (J) singlesideband,suppressedcarrier; (F) frequencymodulation; (G) phasemodulation. b) Natureofsignal(s)modulatingthemaincarrier(secondsymbol): (1) asinglechannelcontainingquantizedordigitalinfor
39、mationwithouttheuseofa modulatingsubcarrier; (2) asinglechannelcontainingquantizedordigitalinformationwiththeuseofa modulatingsubcarrier; (3) twoormorechannelscontainingquantizedordigitalinformation. c) Typeofinformationtobetransmitted(thirdsymbol): (A) telegraphyforauralreception; (B) telegraphyfor
40、automaticreception; (C) facsimile; (D) datatransmission,telemetryortelecommand. d) Detailsofsignal(s)(fourthsymbol,optional): (A) twoconditioncodewithelementsofdifferingnumbersand/ordurations; (B) twoconditioncodewithelementsofthesamenumberanddurationwithouterror correction; (C) twoconditioncodewith
41、elementsofthesamenumberanddurationwitherror correction; (D) fourconditioncodeinwhicheachconditionrepresentsasignalelement(ofoneor morebits); (E) multiconditioncodeinwhicheachconditionrepresentsasignalelement(ofoneor morebits); (F) multiconditioncodeinwhicheachconditionorcombinationofconditions repre
42、sentsacharacter. NOTESeeITURadioRegulations(edition1982),Article4andAppendix6(AP6,partA)fordetailsanddefinition oftheemissioncharacteristics. 1.3 Systemcharacteristics 1.3.1Transmitter Thetransmittersthataremeasuredusingthemethodsinthisstandardmaybecapableof simultaneouslytransmittingtwoormoredatasi
43、gnalsorvoiceandadatasignal.The operationalcharacteristicsofthesysteminwhichthetransmitterwillbeusedwillestablishif thetransmitterwillberequiredtosimultaneouslytransmitseveraltypesofsignals. Manyofthesystemsthatrequirethetransmittertotransmitbothanaloguevoiceanddata arrangeitsothateithervoiceordataaretransmitted,butnotsimultaneously.Inthisinstance thisstandardwouldbeusedtomeasurethetransmitterradiofrequencyparameterswiththe transmitterinthedatamodeonly.IEC604892shouldbeusedt
