HP3708A信号发分析仪TheHP3708ANoiseandInterfaceTestSetoffersanaccurate,yetsimple,methodofsimulatingmicrow***eradiofadeconditi***.DesignedforoperationintheIFsectionofadigitalorFMmicrow***eradio,withadditionofcalibratedlevelsofwhitenoiseand/orinterferencesignalstotheradioIFcarrier.Abuilt-inpowermeterandmicroprocessorcontrolenablestheradioIFcarrierpowertobesampledatthepointofnoiseinjectionandthenoisedensityadjustedautomaticallytomaintainac***tantcarrierlevelvariati***.Asimple,yetpowerfulinterferencetestfacilityisalsoincluded,allowinganexternalbroadbandsignaltobemixedwiththeradioIFcarrieralongwith/insteadoftheinjectednoise.AdditionalcapabilityprovidedwithintheinstrumentincludesTrueRMSIFpowermeterHighstability0dBmreferencetoneDirectnoisebandwidthmeasurement惠普3708测试集的噪声和界面提供了一个简单,方法准确,但模拟微波无线电褪色条件。专为***数码若节或FM收音机,微波加校准水平的白噪声信号和/或干扰无线电如果载体。一个内置的功率计和微处理器控制使收音机如果载波功率的抽样点的噪声和噪声密度***自动调整,以便保持车)