SMT & PCB Assembly Equipment

Rohde & Schwarz CMS57-B1-B5-B9

Rohde & Schwarz CMS57-B1-B5-B9

Rohde & Schwarz CMS57-B1-B5-B9


Rohde & Schwarz CMS57-B1-B5-B9


In-Circuit Testers





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Rohde & Schwarz CMS57-B1-B5-B9

Radio Test Set

The family of Radiocommunication Service Monitors CMS comprises two models. These radio testers allow transmitter, receiver and duplex measurements to be performed on mobile radios, base stations or RF modules. The CMS family monitors are ideal radio testers for service, maintenance and test departments.

CMS – a test set replacing many individual measuring instruments

Due to the comprehensive standard configuration of the individual models and the optional extensions tailored to specific applications, external measuring instruments in addition to the CMS are not required.

Overview of models:

Basic features:

    Transmitter and receiver testing

    Spectrum monitor

    Fully automatic testing

    SSB test

CMS57 – the specialist for avionics

Basic features additionally with:

    VOR/ILS signal generator

Overview of configurations (model-dependent or optional)

Signal sources

    RF synthesizer from 0.4 to 1000 MHz, resolution 10 Hz, with AM, FM, φM and multitone modulation capabilities

    Two independent modulation generators, from 20 Hz to 30 kHz each, resolution 0.1 Hz

    Selective-call encoder to all standards (also user-programmable)

    CDCSS coder

    DTMF coder

    10 MHz reference frequency input/output

    VOR/ILS signal generator

    Measuring facilities

    RF frequency counter, RF frequency-offset counter

    Power meter from 5 mW to 100 W

    Selective RF power meter down to -100 dBm

    RF spectrum monitor with wide dynamic range and filters which also allow modulation analysis (AM, FM, SSB)

    Tracking generator in frequency range from 400 kHz to 1000 MHz

    Adjacent-channel power meter with standard ETSI filters

    Modulation meter for AM, FM and jM; weighting: +PK, -PK, PK HOLD, PK/2, RMS, RMS2

    Duplex modulation meter for duplex spacings of any size

    AF voltmeter with peak and true RMS weighting

    SINAD meter with variable test frequency

    S/N meter

    Distortion meter with variable test frequency

    AF frequency counter with period and gate-time counting

    Selective-call decoder for all standards (also user-programmable)

    DTMF decoder

    CDCSS decoder


    DC ammeter/voltmeter

    Transient recorder for analysis of power and frequency transients

    Cable fault test


    CCITT or C-message filters for weighting to relevant standards

    Continuously tunable bandpass filter from 50 Hz to 5 kHz with high skirt selectivity for selective modulation and AF measurement

    Continuously tunable notch filter from 100 Hz to 5 kHz for signal suppression

    Highpass and lowpass filters for band limiting and measurement of subaudio tones

    Other facilities

    Second RF input with high sensitivity for off-air measurements, can be used independently for module testing

    Built-in 600 Ω AF transformers for modulation generator and AF voltmeter

    Connector for battery (11 V to 32 V)

    13 dBm RF output for off-air measurements

    Memory for storing complete instrument setups

Automatic tests

Automatic test routines are indispensable for high throughput and reproducible results in service and production: in the learn mode, the Radiocommunication Service Monitor CMS stores all manual settings and measurements and produces from them ready-to-start automatic test routines. The user need not have any programming knowledge or learn equipment-specific command sets.

Tolerances, comments and conditions (loops, jumps, queries and control commands) can additionally be inserted into the test routines. Programs can also be activated directly from the memory card. The test report format may be user-specified and can be clearly structured by transferring control characters to the printer, such as blank line, paragraph and bold-face.


B1 = OCXO reference oscillator, aging : 2*10E-7/year

B5 = Control interface with CCITT filter, DTMF decoder and Centronics interface

B9 = Duplex modulation meter for CMS55/57 with ACP meter and tracking - See more at:

Company Information:

The Worlds Largest Distributor of New, Refurbished, and Second Hand Electronic Test and Measurement (T&M) Equipment.

Lake Mary, Florida, USA

Equipment Dealer / Broker / Auctions, Manufacturer

  • Phone 407-804-1299
  • Fax 407-804-1277

See Supplier Website »

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