CMD55 高价回收CMD55综合测试仪|CMD55手机测试仪

高价回收R&S | CMD55 手机综合测试仪|CMD55|Rohde&Schwarz|手机测试仪 

深圳市宏盛仪器科技有限公司

：

：张锦清 

邮  箱：jinqing31

:546580577

网  址：www.hongsheng17.com

地址：深圳市宝安区宝民一路96号白金酒店大厦2403

·是测量GSM及GSM1800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
CharacteristicsThe
CMD52 is a compact unit for testing GSM900 s. The CMD55 is
furthermore capable of testing GSM1800 （formerly named PCN orDCS1800）
 and GSM1900 （formerly named PCS or DCS1900） 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 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
: synchronizationLocation updateIncoming call setupOutgoing
call setup 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