CMD55GSM综合测试仪CMD55
是测量GSM及GSM1800移动电话的紧缩式单元
通过RS232，IEC/IEEE远控
前面板有多功能连接器
话音编码器/解码器可被集成
可选择安培表和伏特表
高敏感度二级RF输入
可改进为GSM、GSM1800及GSM1900测试
CMD55出售CMD55 报价 综合测试仪CMD55
销售、租赁CMD55/CMD55综测
周先生 （业务部经理）
021-6172 8576 021-6112 4992
135 6403 5149
产品名称： 综合测试仪CMD55品 牌： R/S产品型号： CMD55产品指标： GSM/DECT 综合测试仪是测量GSM及GSM1800移动电话的紧缩式单元•通过RS232，IEC/IEEE远控•前面板有多功能连接器可选择安培表和伏特表
备注： 本公司进口电子仪器 仪表的代理销售、租赁和维修，以质量为本,服务至诚!力求更,服务力求更! 欢迎来电 垂询或亲临选购，并欢迎预定。
ＣＭＤ５５手机综合测试仪ＣＭＤ55大运特价出租出售
销售/出租/回收二手CMD55 综合测试仪丁先生 QQ:175420393
CMD55产品特点：·是测量GSM及GSM1800移动电话的紧缩式单元·通过RS232，IEC/IEEE远控·前面板有多功能连接器·话音编码器/可被集成·可选择安培表和伏特表·高敏感度二级RF输入·可改进为GSM、GSM1800及GSM1900测试
CharacteristicsThe CMD52 is a compact unit for testing GSM900 mobiles. The CMD55 is furthermore capable of testing GSM1800 （formerly named PCN orDCS1800） ａnd GSM1900 （formerly named PCS or DCS1900） mobile phones. Both models are favourably priced ａnd combine small dimensions with high measurement accuracy ａnd speed.The testers range of capabilities includes all signalling, generator ａnd measurement functions required for verifying the correct operation of the DUT （Device Under Test）. Thanks to its fast go/nogo tests ａnd accurate analysis using optional extensions, CMD52 ａnd CMD55 are equally well suited for R&D, production ａnd high-end service ａnd production.Based on the wide-range know-how of Rohde & Schwarz in digital radiocommunication testing, which not least was obtained in developing type-approval test systems such as the GSM900 ａnd GSM1800 system simulators, both CMD models are top-grade testers for present ａnd future measurement applications.Test capabilitiesTo test mobile phones, the CMD simulates a GSM900, 1800 or 1900 base station. One of the two RF synthesizers available for this purpose delivers a continuous BCCH signal while the other one provides all 8 timeslots for TCH signals.The major test functions are:Mobile synchronizationLocation updateIncoming call setupOutgoing call setupMobile power level controlHandover （channel change, timeslot change）Peak power measurementHigh dynamic range burst analyzer （option CMD-B4 ａnd CMD-B42）Spectrum due to Switching measurement （option CMD-B4 ａnd CMD–B43）Spectrum due to Modulation measurement （option CMD-B4 ａnd CMD–B43Timing Advance measurementSACCH measurement （eg RxLev, RxQual, power level）Echo testCall clearing by mobile phoneCall clearing by CMDDC current/voltage measurementsPhase ａnd frequency error measurement （option CMD-B4）Measurement of power ramping as a function of time （option CMD-B4）Bit-error rate （BER） ａnd Fast BER measurement （option CMD-B4）OperationOperation of the CMDis extremely user-friendly ａnd requires no detailed GSM/PCN knowledge. The high-contrast, backlit LCD provided with softkeys on both sides allows convenient callup of test routines under menu control. Various network-specific parameters are preset ａnd permit direct testing without any operator control. In addition, it is of course possible to modify all parameters individually in the configuration menus.AutotestThe autotest function enables complete measurement routines to be started at a keystroke without any further intervention by the operator being required. The test results in tabular form are displayed on the screen.Remote controlThe CMD is remote-controlled via the RS-232 or IEEE/IEC-bus interface using SCPI-compatible commands. In the remote-control mode the CMD is designed for fast speed to yield high throughputs in production.Echo testThe echo test allows very rapid go/nogo analysis covering all essential parts of the mobile. Words spoken into the microphone of the mobile are sent to the CMD, stored in buffer memory ａnd sent back to the phone. In this way it is possible to check the whole signal path from the microphone via the RF transmitter section, RF receiver section, modulator, demodulator, signalling section, speech coder/decoder, analog audio components through to the loudspeaker.Testing handheldsIn addition to the normal RF input/output, the CMD has a high-sensitivity input ａnd a high-level output which enable tests on modules or on handhelds with built-in antenna by using couplers like the CMD-Z10.Module testingFault localization in mobile telephones requires various measurement functions that can also be used without signalling so that defective units can be tested down to modular level. The basic model of CMD already provides some of these functions, eg signal generation with or without modulation or power measurements, other functions being available as optional extensions.
CMD55手机综合测试仪CMD55
售/租/回收二手CMD55 综合测试仪CMD55产品特点：·是测量GSM及GSM1800移动电话的紧缩式单元·通过RS232，IEC/IEEE远控·前面板有多功能连接器·话音编码器/解器可被集成·可选择安培表和伏特表·高敏感度二级RF输入·可改进为GSM、GSM1800及GSM1900测试
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CMD55手机综合测试仪CMD55
新到货CMD55/ CMD57手机综合测试仪CMD55/ CMD57回收手机测试仪
产品名称： CMS55 综合测试仪
品 牌： R&S 产品型号： CMS55产品指标： 频率范围:2 至 500MHz（0.4 至 1000MHz） 特点轻便型的多功能测试仪器体积小，重量轻。不仅适用于生产线使用，也适用于野外现场测试。采用高对比度的加亮型大屏幕液晶，可同时显示设定参数和测量结果。可对各种电台进行收、发信机测试多种附加测试功能包括：频谱监视、示波器、连续可调谐失真表和音频滤波器GSM无线电通信测试仪 CMD55 3/ 2GHz 本公司长期低价销售!现金回收：租赁：二手进口高挡仪器，网络分析仪，频谱分析仪，音频分析仪，信号源，电桥，电源，同时接收二手高挡仪器维修！
备注：本公司长期出售/现金收购/回收：网络分析仪、无线综合测试仪、频谱分析仪、视频音频分析仪、蓝牙测试仪、视频图象信号源、LCR测试仪、高低频信号源、示波器、万用表、手机程控电源、直流电源、电子负载、频率计、GPIB卡,PCI-GPIB卡、GPIB-USB-B等二手仪器出售/维修/收购。欢迎来电咨询！
手机测试仪CMD55
东莞市塘厦佳华电子有限公司 联系人: 冉（先生） 经理 联系手机： 、 电话：0769- 服务QQ： 邮箱：ranlc.com
新到货CMD55/ CMD57手机综合测试仪CMD55/ CMD57回收手机测试仪
CMD55手机测试仪CMD55
手机测试仪CMD55
东莞市塘厦佳华电子有限公司
联系人: 冉（先生） 经理
联系手机： 、
电话：0769-
服务QQ：
邮箱：ranlc.com
CMD55综合测试仪CMD55
CMD55是测试的此外有能力的GSM1800（从前名字PCNorDCS1800）和GSM1900（从前名字PCS或DCS1900）流动的电话.两者模型是顺利地定价和联合小的维有高度测量法精确和迅速. 能力的考试者山脉包括全部的信号,发电机和测量法功能必需的为了检验的正确的操作DUT（装置在测试之下）.感谢到它的紧的去/nogo测试和精确的分析用可选择的延长,CMD52和CMD55是相等地好适合的为了R&D,产品和高度-末端服务和产品. 立基于在宽的-山脉的诀窍Rohde&Schwarz在数字的radiocommunication测试,哪个不最小的是获得在发展中的类型-赞成测试系统例如GSM900和GSM1800系统模拟器,两者CMD模型是顶部-等级考试者为了赠品和未来测量法应用.
1. 是测量GSM及GSM1800移动电话的紧缩式单元* 通过RS232，IEC/IEEE远控* 前面板有多功能连接器* 话音编码器/解码器可被集成* 可选择安培表和伏特表* 高敏感度二级RF输本公司长期现金收购:音频仪器,视频仪器,高频仪器（如网络分析仪,频谱分析仪高频信号源,无线电综合测试仪等高频仪器,并高频承接仪器维修）!
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