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                產品分類  
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                租售二手CMD55綜合分析儀手機綜測儀CMD55手機綜合測試儀配藕合板
                 ◆ 產品詳細說明
                租售二手CMD55綜合分析儀手機綜測儀CMD55手機綜合測試儀配藕合板
                供/租/修/收購CMD55手機綜測CMD55

                東莞市銀通電子有限公司

                東莞市飛宇電子有限公司
                聯系人:歐陽小兵  13332662998

                            孟小姐    13688968946

                地址:廣東省東莞市塘廈鎮迎賓大道富康豪庭4棟2單元403-404#

                型號:CMD55

                主要特點:
                ·是測量GSM及GSM1800移動電話的緊縮式單元
                ·通過RS232,IEC/IEEE遠控
                ·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
                ·高敏感度二級RF輸入
                ·可改進為GSM、GSM1800及GSM1900測試
                技術指標:

                產品型號:CMD55
                產品品牌:R&S
                產品指標:GSM900/1800/1900MHz

                CMD55產品特點:
                ·是測量GSM及GSM1800移動電話的緊縮式單元
                ·通過RS232,IEC/IEEE遠控
                ·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
                ·高敏感度二級RF輸入
                ·可改進為GSM、GSM1800及GSM1900測試
                 
                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.

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