黃先生：1.3.7.1.4.8.8.4.8.3.4---------------------------------------------------- 特點 ·是測量GSM移動電話的緊縮式單元 ·高測量精度 ·高速測量 ·能力范圍包括發(fā)射信號、發(fā)生器、實現(xiàn)正確操作的測量功能及的測量分析 ·使用生產(chǎn)與服務(wù)領(lǐng)域 技術(shù)指標 RFgenerator Frequencyrange 935.2 to 959.8MHz(GSM channel spacing) Frequencysettling time ≤3ms for phaseerror<2° Output level(RF IN/OUT) -33 to -120dBm Output level(RF OUT 2) 13 to -77dBm Resolution 0.1dB Harmonics (RFIN/OUT) <-30dBc Modulation GMSK,B×T=0.3 RF generator2 same as RFgenerator 1,but Outputlevel(RFIN/OUT) -35 dBm (RF OUT2: 11 dBm) Peak powermeter(RF IN/OUT) Frequencyrange 800to 1000MHz Measurementrange/resolution 10to 47 dBm/0.1dB VSWR ≤1.3 GSM phase andfrequency errormeasurement withoptionCMD-B4 Frequencyrange 890.2to 914.8MHz(GSM900 band) Level range (RFIN/OUT 10to 47 dBm(RFIN 2:-37 to 0 dBm) High-dynamicburst analysis with optionCMD-B42 Relativeerrorof individual test sample ≤1.5 dB to 72dB below peak power Dynamicrange >72dB Measurementlimit (RF IN/OUT) <-36 dBm(RFIN 2:<-83 dBm) 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