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1、CISPR25(Thirdedition–2008)Vehicles,boatsandinternalcombustionengines–Radiodisturbancecharacteristics–Limitsandmethodsofmeasurementfortheprotectionofon-boardreceiversCORRIGENDUM1Figure1–MethodofdeterminationofconformanceforallfrequencybandsReplacetheexistingfigureandnotesbyth
2、efollowing:StartAverageandpeakApplicablelimits(1):Averageandquasi-peakaverageandpeakoraverageandquasi-peak?MeasurementwithMeasurementwithpeakdetectorpeakdetectorArethepeakYes(2)Yes(2)Arethepeakdatabelowthedatabelowtheaveragelimit?averagelimit?NoNoArethepeakYesYesArethepeakda
3、tabelowthedatabelowthepeaklimit?quasi-peaklimit?NoNoMeasurementwithquasi-peakdetector(3)YesArethequasi-peakdatabelowthequasi-peaklimit?MeasurementwithMeasurementwithNoaveragedetector(3)averagedetector(3)NoAretheaverageYesYesAretheaverageNodatabelowthedatabelowtheaveragelimit
4、?averagelimit?FailPassFailIEC051/09January2009LicensedtoESSCustomer.ANSIorder123.Downloaded1/16/20107:25PM.Singleuserlicenseonly.Copyingandnetworkingprohibited.NOTE1Theconformanceshouldnormallybeobtainedbycompliancetobothaverageandpeaklimitsorbothaverageandquasi-peaklimitsun
5、lessthetestplandefinesthatconformancecanbeobtainedbycompliancetothesingleappropriatelimit)(dependingonthecase,peak,oraverage,orquasi-peak).NOTE2Becausemeasurementwithpeakdetectorisalwayshigherorequaltomeasurementwithaveragedetectorandapplicablepeaklimitisalwayshigherorequalt
6、oapplicableaveragelimit,thissingledetectormeasurementcanleadtoasimplifiedandquickerconformanceprocess.NOTE3Thisflow-chartisapplicableforeachindividualfrequency,e.g.onlyfrequenciesthatareabovetheapplicablelimitneedberemeasuredwithaverageorquasi-peakdetector.Figure4–Averagelim
7、itforradiateddisturbancesfromvehiclesGPSband1567,42to1583,42MHzIntheexistingfigure,replace“LeveldB(μV/m)”by:LeveldB(µV)605040V)μ3020LeveldB(100–101567,421568,421569,421570,421571,421572,421573,421574,421575,421576,421577,421578,421579,421580,421581,421582,421583,42Frequency(
8、MHz)IEC052/09January2009LicensedtoESSCustomer.ANSIorder123.Downloaded1/16/2
