二手CMD55 深圳市迈凯瑞仪器仪表有限公司

如果您对该产品感兴趣的话，可以
产品名称：二手CMD55
产品型号：CMD55
产品展商：罗德与施瓦茨 Rohde&Schwarz
产品文档：无相关文档

简单介绍

二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55

产品描述

二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55二手CMD55

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GS GSM1800及GSM1900测试
CMD55-R&S CMD55 - CMD55价格- CMD55手机测试仪- CMD55说明书-销售 CMD55 -租赁 CMD55 -回收 CMD55 -计量CMD55 -维修 CMD55 -迈凯瑞 CMD55 -特价 CMD55 -尽在迈凯瑞 CMD55 销售 CMD55
CMD55 详细资料请来电咨询，你的来电是我们*大的荣幸！

联系人：姚小姐：电话 QQ:1946418560 廖先生 QQ：785298834

公司：深圳市迈凯瑞仪器仪表有限公司

地址：深圳市龙华民治留仙大道2号天辅星大厦5楼501室

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.

产品留言

标题

联系人

联系电话

内容

验证码

点击换一张

注：1.可以使用快捷键Alt+S或Ctrl+Enter发送信息!
2.如有必要,请您留下您的详细联系方式!

温馨提示：为规避购买风险，建议您在购买前务必确认供应商资质与产品质量。
免责申明：以上内容为注册会员自行发布，若信息的真实性、合法性存在争议，平台将会监督协助处理，欢迎举报

产品目录

产品资料

二手CMD55