中赛仪器库存大量各种高频仪器现货***出售中--本公司长期现金大量高价回收各种高频仪器;如-网络分析仪-视/音频分析仪-信号发生器-频谱分析仪-手机综合测试仪阻抗分析仪LCR电桥示波器******测试仪静电放电发生器等等…..仪器联糸人；张生13556784911/18922936706电话；0769-33355531传真；0769-23362124选用二手测量仪器的优势是：1、与新购仪器几个月的供货期相比，购买二手仪器的供货期要短的多。在时间就是市场的今天，优势无疑是***为明显的。2、二手仪器的价格便宜，基本为新购仪器价格的20%～50%。在电子技术迅速发展的今天，仪器的更新也在加快，***越少则风险越小。3、为了让您放心地使用我们提供的二手仪器，我们销售的二手仪器可以做到：1、保修半年至一年不等。2、可以根据您的要求，将仪器送至***级计量测试单位进行校准。现货斯坦福DS345任意波形信号发生器30MHzFunctionGeneratorDS345—Function&arbitraryw***eformgeneratorDS345任意波形信号发生器Specificati***FrequencyRangeMax.FrequencyResolutionSine30.2MHz1?HzSquare30.2MHz1?HzRamp100kHz1?HzTriangle100kHz1?HzNoise10MHz(Gaussianweighting)Arbitrary10MHz40MHz/n(samplerate)OutputSourceimpedance50ΩGroundingOutputmayfloatupto&plu***n;40V(AC+DC)relativetoearthground.AmplitudeRange0.01to10Vpp(50Ω),20Vpp(Hi-Z)Resolution3digits(DCoffset:0V)Sinew***eaccuracy(0VDCoffset)5to10Vpp&plu***n;0.2dB(1?Hzto20MHz)&plu***n;0.3dB(20MHzto30.2MHz)0.01to5Vpp&plu***n;0.4dB(1?Hzto20MHz)&plu***n;0.5dB(20MHzto30.2MHz)Squarew***eaccuracy5to10Vpp&plu***n;3%(1?Hzto100kHz)&plu***n;6%(100kHzto20MHz)&plu***n;15%(20MHzto30.2MHz)0.01to5Vpp&plu***n;5%(1?Hzto100kHz)&plu***n;8%(100kHzto20MHz)&plu***n;18%(20MHzto30.2MHz)Triangle,ramp,arbitraryaccuracy&plu***n;3%(>5Vpp)&plu***n;5%(<5Vpp)DCOffsetRange&plu***n;5V(limitedsuchthat|VACpeak|+|VDC|<5V)Resolution3digits(VAC=0)Accuracy1.5%ofsetting+0.2mV(DConly)&plu***n;0.8mVto&plu***n;80mV,dependingonACandDCsettingsSineW***eSpuriouscomponents<-55dBc(non-harmonic)Phasenoise<-50dBcina30kHzbandcenteredonthecarrier,exclusiveofdiscretespurioussignalsSub-harmonic<-50dBcHarmonicdistortionLevel<-55dBc<-45dBc<-35dBc<-25dBcFrequencyRangeDCto100kHz0.1to1MHz1to10MHz10to30MHzSquareW***eRise/falltime<15ns(10to90%),atfulloutputAsymmetry<1%ofperiod+4nsOvershoot<5%ofpeaktopeakamplitudeatfulloutputRamps,TriangleandArbitraryW***eformsRise/falltime45ns(10MHzBesselfilter)Linearity&plu***n;0.5%offull-scaleoutputSettlingtime<1?stosettlewithin0.1%offinalvalueatfulloutputArbitraryW***eformsSamplerate40MHz/N,N=1to234-1Memorylength8to16,300pointsResolution12bits(0.025%offullscale)PhaseRange&plu***n;7199.999°withrespecttoarbitrarystartingphaseResolution0.001°AmplitudeModulationSourceInternal(sine,square,triangleorramp)orExternalDepth0to100%AMorDSBSCRate0.001Hzto10kHzinternal,15kHzmax.externalDistortion<-35dBat1kHz,80%depthDSBcarrier<-35dBtyp.at1kHzmodulationrate(DSBSC)Externalinput&plu***n;5Vfor100%modulation,100kΩimpedance,15kHzbandwidthFrequencyModulationSourceInternal(sine,square,triangle,ramporarbitrary)Rate0.001Hzto10kHzSpan1mHzto30.2MHz(100kHzfortriangle,ramp)PhaseModulationSourceInternal(sine,square,triangle,ramp)Rate0.001Hzto10kHzSpan&plu***n;7199.999°FrequencySweepTypeLinearorlog,phasecontinuousW***eformUp,down,up-down,singlesweepTime0.001sto1000sSpan1mHzto30.2MHz(to100kHzfortriangle,ramp)MarkersTwomarkersmaybesetatanysweeppoint(TTLoutput)Sweepoutput0to10Vlinearrampsignal,synchronizedtosweepBurstModulationW***eformAnyw***eformexceptnoisemaybeburstmodulatedFrequencySine,squareto1MHzTriangle,rampto100kHzArbitraryto40MHzsamplerateCount1to30,000cycles/burst(1?sto500sbursttimelimits)TriggerGeneratorSourceSingle,Internal,External,LineRate(internal)0.001Hzto10kHz(2-digitresolution)ExternaltriggerPositiveornegativeedge,TTLOutputTTLlevelStandardTimebaseAccuracy&plu***n;5ppm(20°Cto30°C)Aging5ppm/yearInput10MHz/N&plu***n;2ppm(N=1to8)1VppminimuminputlevelOutput10MHz,>1Vppsineinto50ΩOptionalTimebaseTypeOvenizedAT-cutoscillatorStability<0.01ppm,20°Cto60°CAging<0.001ppm/dayAllanvariance(1s)<5×10-11GeneralInterfacesOptionalRS-232(300to19.2kbaud,DCE)andGPIBwithDOSbasedarbitraryw***eformsoftware(AWC).Allinstrumentfuncti***arecontrollableovertheinterfaces.Non-volatilememoryNinesetsofinstrumentsettingscanbes***edandrecalledDimensi***8.5"×3.5"×13"(WHL)Weight10lbs.Power50W,100/120/220/240VAC,50/60HzWarrantyOneyearpartsandlaborondefectsinmaterialsandworkmanship)