黃先生 1.3.7.1.4.8.8.4.8.3.4------------------------------- 特點(diǎn) ·可測量GSM，GSM1800及GSM1900 ·CRT06的RF測量 ·適應(yīng)高生產(chǎn)量時(shí)的高速測量 ·獨(dú)立、輕便、緊縮式設(shè)計(jì) ·通過RS232，IEC/IEEE遠(yuǎn)控 ·前面板有多功能連接器 ·話音編碼器/解碼器可被集成 ·可選擇安培表和伏特表 ·視頻測試 ·高敏感度二級RF輸入 技術(shù)指標(biāo) Time andfrequency reference TCXO standard Nominalfrequency 10MHz Temperfureeffect(0 to 35℃) <1.5*10^-6 Aging <0.5*10^-6/year OCXO optionCMD-B1 Nominalfrequency 10MHz Temperatureeffect(0to 50℃) Aging 1*10^-7 <5*10^-9/day or <2*10^-7/year DECT signalgenerator specificaitonsvalidfor N connector Frequency 10 DECt chanels0 to 9 Additional DECTchannels -3 to -1,10 to12and half channels Levelrange -100 to-40dBm Burstswitch-off >30dB Modulation GFSK(B*T=0.5) DECTanalyzer specificationsvalid for N connector Frequency Level(setting for external offenuation and expected powershall bematching same as signalgenerator -10 to +30 todBm) -65 to+30dBm(for level meter) -30 to +30dBm(forbroadband FM demodulator and signalling),valuesshifted by about -40dB for input2 FMdemodulator for TXpostprocessing and analog output Range 0 to 450kHzdeviation Resolution 1kHz Levelmeter(transientresponse) for TXposprocessing and analog output Range -65to 30 todBm Dynamic 70dB Analog DECTADPCM interface Output balanced Range 1V,300Hz to3kHz S/N+THD 50dB offull-range level Input balanced Range 50mV,300Hzto3kHz S/N+THD 50dB atfull-range level DCmeasurements DCvoltmeter 0to±30V DCammeter 0 to±30A AFmeter Frequencyrange 50Hzto10kHz Inputvoltage 0.1mV to30V Loadimpedance 1MΩ AF distortionmeter Frequencyrange 300Hz to3kHz Inputvoltage 100mV to30V Loadimpedance 1MΩ AFcounter Frequencyrange 20Hz to10kHz Inputvoltage 10mVto30V rESOLUTION 1Hz Loadimpedance 1mΩ 60MHzcounter Frequencyrange 10Khz to60MHz Inputsignal min:100mV;max:TTL signal Resolution 1Hz Loadimpedance 1MΩ‖100pF AFgenerator Frequencyrange 50Hzto10kHz Resolution 0.1Hz Accuracy 0.05Hz Outputvoltage 10μVto5V 20mA Sourceimpedance <5Ω Mobile StationTester GSM900 CMD50 1050.9008.50 GSM900 CMD52 1050.9008.52 GSM900 andCSM1800 CMD53 1050.9008.53 GSM900 andGSM1800 CMD55 1050.9008.55 GSM900,andGSM1800 and DECT CMD65 1050.9008.65 For all modelGSM1900 optional CMD-B19 1059.6201.02