【英文标准名称】:Methodsofmeasurementonreceiversforsatellitebroadcasttransmissionsinthe12GHzband-ElectricalmeasurementsonDBStunerunits
【原文标准名称】:12GHz频带卫星广播接收机的测量方法.DBS调谐设备的电气测量
【标准号】:BSEN61079-2-1995
【标准状态】:现行
【国别】:英国
【发布日期】:1995-08-15
【实施或试行日期】:1995-08-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:通信设备;无线电接收机;接收机;信号;调制;乱真信号;电视接收机;无线电干扰;通信链路;调谐;接收;无线电通信;互相调制;信噪比;卫星通信链路;信号失真;图像失真;变频振荡器;通过卫星的直接广播
【英文主题词】:
【摘要】:ThispartofIEC1079appliestothetunerunitofareceiverforthedirectreceptionofsatellitebroadcasttransmissionsinthe12GHzband.ThechannelsarethosedefinedbyWARCBS-77andRARCSAT-83[1]andthesystemsarethoseofCCIRRecommendation650[1].TheobjectofthispartofIEC1079istodefinetheconditionsandmethodsofmeasure-menttobeapplied.Thispartdoesnotspecifyperformancerequirements.ThetunerunitcomprisesthechannelselectorandFMdemodulator.Theinputtothisunitisagroupofintermediatefrequencysignals,usuallyintherange1GHzto2GHz,whichisprovidedfromanassociatedoutdoorunit.Theoutdoorunitincludesatleastamicro-waveantennaandthefrequencyconvertertothefirstintermediatefrequency.MethodsofmeasurementonoutdoorunitsaredescribedinPart1ofInternationalStandardIEC1079.Adecoderforbasebandanddatasignalsmaybeincludedinthetunerunit.Methodsofmeasurementofthedecoder,however,aredescribedinParts4and5ofInternationalStandardIEC1079(underconsideration).note:*ThefiguresinsquarebracketsrefertotheBibliography(annexA).
【中国标准分类号】:M75
【国际标准分类号】:33_160_20
【页数】:60P;A4
【正文语种】:英语