固緯GFC-8270H數(shù)字頻率計的性能：提供頻率、周期量測微電腦控制在高頻與低頻，均具高解析度頻率范圍：0.01Hz~2.7GHz高感度：10mVrms1Hz檔解析度：100nHz自我偵測診斷可調(diào)式觸發(fā)準位控制顯示鎖定功能固緯GFC-8270H數(shù)字頻率計的技術(shù)參數(shù)：顯示8位數(shù)withHz,kHz,MHz,GHz,S,mS,μS,nSandoverflowGateTimeContinuouslyvaryfrom10mSto10S,or1periodofinputdependingonwhicheverisgreater準確度+(解析度+時基誤差)頻道A范圍DC耦合0.01Hz~120MHz；AC耦合30Hz~120MHz感度10mVrmstypical；50mVrmsmax耦合AC或DC,switchable濾波器Lowpass,switchableinoroutforchannelA.-3dBpointofnominally100kHz阻抗1MW//40pF衰減器x20dB觸發(fā)準位調(diào)整-2.5VDCto+2.5VDC解析度Themaximumresolutionforfrequencymeasurementis100nHzfor1Hzand0.1Hzfor100MHzinputrespectively,andforperiodmeasurementis10nSfor1Hzand0.1fS(f=10-15)for100MHzinputrespectively.Atleast7,6,5digitsaredisplayfor1S,100mS,10mSgatetimerespectivelyPeriodRange8nSto100Satleast7digitsdisplayedforpersecondofgatetime頻道B范圍50MHzto2.7GHz感度 50mVrms(10mVrmstypical)耦合AConly時基AgingRate1ppm,perMonth溫度5ppm23°C+5°C電源變化+0.005ppmfor+10%變化使用電源交流100V/120V/220V/240V±10%,50/60Hz附件操作手冊×1,電源線×1,測試線×2(GTL-101×1,GTL-110×1)尺寸及重量230(寬)×95(高)×280(長)mm,約2.2公斤