频谱分析仪TEK2712 不带跟踪源.带跟踪源.官网介绍(英文) 137x361x445mm10kg(含提手) Tektronix2712SpectrumAnalyzer 频率精度5 10-7 灵敏度至-139 dBm(-92 dBmV)withBuilt-InPreamp 四条数字踪迹加真实模拟踪迹显示 124KofRAM EMCMeasurementswithOptionalQuasi-PeakDetector 扫频测量至1.8GHz的内部或外接跟踪源 应用 广播传输领域 通讯系统 EMC检测 Tektronix2712频谱仪内建频率计,完全的编程能力,数字和真实模拟显示,108个或更多的显示存储. 人性化设计，操作简便，实时时钟年月日可直接合并波形一起打印. Frequency-correctedtuningandphase-lockstabilizationenhancetheabilitytoresolveclose-insignalsandreliablydemodulatenarrowbandsignals.Sensitivityupto-127 dBm(-80 dBmV)at300-Hzresolutionbandwidth(RBW)letsyouseeweaksignals.Thebuilt-inpreampcanimprovesensitivityanother12 dB,upto-139 dBm(-92 dBmV).Upto80-dBon-screendynamicrangeensuresvisibilityofweaksignalsinthepresenceofstrongones. A300 HzRBWfilterwithashapefactor 7:1meansyou'llseemanyclose-insidebandsandspuriousorunexpectedsignalsyoumightotherwisemiss.Attheotherendofthespectrumthe5-MHzRBWfilterisusefulwhendemodulatingwidebandsignalssuchasactivelymodulatedvideocarriers. Thebuilt-insignalcounter,with0.5ppm 10 Hzaccuracy,offersaddedpowerforrapidlyidentifyingsignals.Thecapabilitytochoosebetweendigitalandtrue-analogdisplaysletsyouexaminesignalsforcharacteristicsthatarenotvisibleondigital-onlydisplays. Sweepspeedsof1 sec/div,TVLineandTVFieldtriggering,aninternalaudioamplifier,AM/FMdetectors,andtheoptionalVideoMonitorModeallmakevideocommunicationsmeasurementseasier. Bandwidth,Carrier-to-Noise,NoisePower,SignalSearch,andFMDeviationmodesprovideadditionalmeasurementpowerandconvenience.OccupiedBandwidthMode,withpercentsettablefrom1to99%,aidsinbroadcastandradiomeasurements. Theoptionalinternalorexternaltrackinggeneratorprovideshighdynamicrangesweptmeasurementsto1.8 GHz. EMCMeasurement TohelpsimplifyyourEMCmeasurements,the2712offersanoptionalquasi-peakdetector,EMIresolutionbandwidthfilters,andfullycorrectedE-fieldintensitymeasurementstoassistinprecertificationandtroubleshooting.EMCancillarydevicesareavailabletoprovideacompletemeasurementsolution. Tektronix2711SpectrumAnalyzer The2711offersawiderangeoffeaturesatanextremelyaffordableprice.Thisvalueleaderiswell-suitedforcheckingbroadcasttransmitterperformanceandcommunicationssystemoperations,lookingforunwantedRFemissions,testingtwo-waycommunicationsequipment,maintainingindustrialsecurity,andteachingfrequencydomainconceptsintheclassroom,plusawidevarietyofotherapplications. Thestandard2711sharesmanyof2712'svaluablefeatures,suchascompactsizeandlightweight(9.5kg,about21 lbs.).Bothinstrumentscanalsobequicklyconvertedtorackoperationwithoptionalrackmountadapters. Frequencyaccuracyis1 10-5andsensitivityisupto-117 dBm(-70 dBmV)at3 kHzRBW.Thebuilt-inpreampcanaddanother12 dB,upto-129 dBm(-82 dBmV).Upto80-dBon-screendynamicrangehelpsseeweaksignals,evenwhenstrongonesarepresent. True-analogdisplaycapability,alongwithfastsweepspeedsandTVLineandTVFieldtriggeringprovideconvenientdemodulationofvideocarriersformakingdepth-of-modulationchecksorlookingatspecialbasebanddata,VITS,andmanyothersignals. AninternalaudioamplifierandAM/FMdetectorsletyouheardemodulatedsignals,usingeitherthebuilt-inspeakerorheadphonejack,forfastsignalidentificationandtroubleshootingincommunicationsapplications. WiththeVideoMonitor(Opt.10)installed,youcanviewbroadcast(AM)TVsignalsordown-convertedsatellite(FM)signals. The2711canalsobeusedwithasetofnear-fieldprobesasahandyEMCdiagnostictool. Characteristics 以下指标同样适用于2712和2711预热15分钟后，特殊标注的除外。 FrequencyRelated 频率范围-9 kHzto1800 MHz 中心频率精度- 2712:5 10-7ofCF 700 Hz 2711:1 10-5ofCF 5 kHz 频率计数器精度(Std.2712,Opt.022711)- 2712:5 10-7ofCF 10 Hz, 1LSB 2711:1 10-5ofCF 10 Hz, 1LSB 点光标频率精度*1-CFAccuracy 3%ofspan Long-termDrift*1- 2712:2ppm/yr 2711:10ppm/yr Short-termDrift- 2712: 400 Hzmaximumdriftbetweencorrectioncycles 2711: 20 kHzmaximumdriftbetweencorrectioncycles ResidualFM- 2712: 100 Hzpk-pk/20 msecat 20 kHzspan/div; 2 kHzpk-pk/20 msecat 20 kHzspan/div 2711: 2 kHzpk-pk/20 msec ResolutionBandwidth(-6 dB)- 2712:5 MHz,300 kHz,30 kHz,3 kHz,300 Hz 2711:5 MHz,300 kHz,30 kHz,3 kHz 2712withOpt.14:Add1 MHz,100 kHz,10 kHz,and1 kHz 2712withOpt.12:Add1 MHz,120 kHz,9 kHz,1 kHz-200 Hzreplaces300 Hzfilter ResolutionBandwidthShapeFactor(60 dB/6 dB)- 7:1forRBW 1 MHz NoiseSidebands- 70 dBcat30 RBW 视频滤波- Approx.1/100(Auto)ofRBW ManualSelection:3 Hzto300 kHzin1-3 sequence Freq.Span/Div.Range- 2712:180 MHzto1 kHz 2711:180 MHzto10 kHzselectedin1-2-5 sequenceorwithintwosignificantdigitsthroughamenu SpanAccuracy- 3%overthecentereightdivisions AmplitudeRelated 平坦度- 1.5 dBmeasuredwith10 dBinternalRFattenuation(preampoff). 垂直显示模式-10,5,1 dB/div,Linear. 测量范围- 2712:-139(preampon)to+20 dBm(-92to+67 dBmV). 2711:-129(preampon)to+20 dBm(-82to+67 dBmV). 显示动态范围-80 dBmax(limitedto40 dBinoptional2712Quasi-PeakDetectormode). 参考电平范围- LOGMode:-70to+20 dBm(-23to+67 dBmV),orto-90 dBmwithpreampon. LINEARMode:8.8 Vto280 mV. 参考电平步进- LOGMode:1 dBor10 dB. LINEARMode:1-2-5 sequence. MixerInputLevel-Automaticallycontrolledbyinstrumentforon-screensignals.Levelselectablebetween-20to-50 dBm(+27to-3 dBmV). 幅度显示精度- 10 dB/div: 1.0 dB/10 dBtomax.cum.errorof 2 dBover70 dBrange; 2.0 dB/10 dBover70-80 dBrange. 5 dB/div: 1.0 dB/10 dBtomax.cum.errorof 2 dBover40 dBrange. 1 dB/div:1 dBmax.errorover8 dBrange. LinearMode: 5%offullscale. 衰减器范围-0to50 dB,2 dBsteps. 灵敏度- 2712:-127 dBm(-80 dBmV)at300 HzRBW,-139 dBm(-92 dBmV)at300 HzRBWwithpreampon(to600 MHz). 2711:-117 dBm(-70 dBmV)at3 kHzRBW,-129 dBm(-82 dBmV)at3 kHzRBWwithpreampon(to600 MHz). SpuriousResponse(PreampOff) ResidualSpuriousResponse- -100 dBmreferencedtoinputof1stmixer 3rdOrderIMDistortion- -70 dBc,fromanytwoon-screensignalswithinanyfrequencyspanmeasuredwith1stmixerinputlevelof -30 dBm(+17 dBmV) 2ndHarmonicDistortion- -66 dBcmeasuredwith1stmixerinputlevelof -40 dBm(+7 dBmV) InputRelated LOEmission- -70 dBmwith0 dBRFattenuation RFInput-Type-Nconnector,50ohm VSWRwith10 dBorMoreRFAttenuation-1.5:1 max MaximumSafeInput-+20 dBm(+67 dBmV)(0.1 W)continuouspeakwith0 dBRFattenuation;100 VDC(initiallyappliedwithfullattenuation) 1 dBCompressionPoint- -15 dBm(+32 dBmV)with0 dBRFattenuation SweepRelated 扫描时间-1 secto2 sec/divin1-2-5 seq.(7-decaderange);AUTOSWEEPmode;MANUALSWEEPselect 扫描时间精度- 10%overthecentereightdivisions 触发-Freerun,internal,external,line,TVfield,TVline,singlesweep,manualscan 触发幅度- Internal:Onedivisionormoreofsignal External:Min.1.0 Vpeak,(15 Hzto1 MHz) Input/OutputCharacteristics 外接触发*1- BNCconnector,10kilohmimpedance,DCcoupled0.1 smin. Pulsewidth:35 Vmax. 外接视频输入*1- DCcoupled.0-50 kHz,0-1.4 V(175 mV/divtypical)signalinputforverticaldeflectionofCRTbeam. 扫描闸门输出-TTLlevel,HIwhileCRTbeamsweeps. 扫描输出-+1.3to-1.3 V,negative-goingramp,proportionaltothehorizontalsweep.Sourceimpedance 50ohm. 视频输出-0to+1.6 Vofvideosignal,proportionaltoverticaldisplayamplitude.0 Vistopofscreen.1kilohmimpedance. OtherCapabilities 光标-Singlemarker/deltamarker;nextright,nextleftpeaks;nextlower,nexthigherpeaks;(highest)peakfind;markertocenterfrequencyandreferencelevel. 非易失性存储器- Lithiumbatterybackup. 2712:124KBavailable;upto108displayssaved;36front-panelsetups,largeuser-definablekeyroutines,andantennatables(exactnumberandsizedependsonNVRAMutilization). 2711:28KBavailable;upto18*2displayssavedand9*2front-panelsetups,user-definablekeyroutines,andantennatables. 数字化存储显示-Selectableacquisitionmodesofpositivepeakonly,positive/negativepeak.SAVEA,B,C,andactiveDtrace;uptofourtracesonscreen;MAXHOLDA,B;MINHOLDA,B,C;B,CMINUSA;WATERFALLdisplaymode;digitalstorageoffprovidesanalogsweep. EnsembleAveraging-Providesweightedcontinuousordiscreteaveragingofdisplayresultinginreductionofrandomnoise. InternalPreamp-Preampcanbeswitchedin/outofcircuit(flatnessdegradesabove600 MHz,providesapproximately12 dBsensitivityimprovement). AlternativeReferenceLevelUnits-dBm,dBmV,dBV,dB V,dB W,dB V/m. 用户自定义开机状态-Instrumentpowersuptouser-definablestateorfactorydefaultcondition. CenterMeasure-Signaliscenteredwithfrequencyandpeakamplitudeautomaticallyreadout(notamarkermode).Thesignaliscountedinthe2712or2711withOption02. SignalTrack-Driftingsignaliskeptatdisplaycenterwithcorrectfrequencyandpeakamplitudedisplayed. GraticuleIllumination- ForCRTphotographyinanalogdisplaymode. SupportsEpsonFXandLQSeriesPrintersthroughabuilt-inGPIBinterface(Std.2712,2711Opt.03),RS-232Cinterface(Opt.08,2712and2711). *1Typicalbutunwarrantedperformanceparameters. *2Upto108saveddisplays,36front-panelsetupsavailablewithOpt.03or08. EnvironmentalSpecifications ElectromagneticCompatibility- EC92EMCDirective89/336/EEC. Emissions:EN50081-I. RadiatedEmissions,30 MHzto1 GHz,EN55022ClassB(CISPR22B). ConductedEmissions,150 kHzto30 MHz,EN55022ClassB(CISPR22B). ConductedEmissions,powerlineharmonics.0to2 kHz,IEC555-213. Immunity:EN50082-1. ElectrostaticDischarge,8kV,IEC801-2. RadiatedImmunity,27 MHzto500 MHz,IEC801-3.Noresponseabove-90 dBmina3 V/meterfield.Fasttransients,capacitiveclamp,1kVpowerleads,500 Vcontrolleads,IEC801-4. PowerLineSurge,1kVdifferentialmode,2kVCommonmode,IEC801-5. Vibration-MeetsMIL-T-28800E,Paragraph4.5.5.3.1(modified). GeneralCharacteristics 电源-105 Wmax.(1.4 A)at115 V,60 Hz.Operates48 Hzto440 Hz,90to132 VAC,or48 Hzto63 Hzto250 VAC.Batterypower(Opt.07)available. SelectionGuide Capability 2712 2711 FrequencyRange 9 kHzto1.8 GHz 9 kHzto1.8 GHz 0.5ppmFreq.Accuracy Std. NA SignalCounter Std. Opt.02 GPIBInterface Std. Opt.03 InternalTrackingGen. Opt.04 Opt.04 ExternalTrackingGen. Opt.05 Opt.05 RS-232CInterface(replacesGPIB) Opt.08(nocharge) Opt.08(nocharge) VideoMonitorMode Opt.10 Opt.10 EMCPrecertification Opt.12 NA Measurements TVSideband Opt.15 Opt.15 AdapterInterface NonvolatileMemory 124K 28K(124KwithOpt.03or08) HighPortability Yes Yes BothDigitalandTrue-AnalogDisplays Yes Yes DedicatedNumericKeypad Yes Yes Real-TimeClock Std. WithOpt.03or08 返回上一页 电话:010-62123258/62123259 邮箱:buy17@163.com