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Tektronix/rohde & schwarz cmd 55 digital radio test set
Rohde & Schwarz / Tektronix CMD55 Digital Radio Communications Tester
Comes with a power cord and what you see in the pictures. If you don't see it, you probably wont get it.
Specifications are from Tektronix and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
The tester is guaranteed to work.
Lists Price is: $16,746.00 new. (including the options)
The Unit's Serial Number Tag Reads:
Rohde & Schwarz Serial Number: 826269/027
Rohde & Schwarz Part Number: 1050.9008.55
Software Version: V 3.55 26.05.99
Opt. B3: Multifrequency reference input/output. For synchronizing DUT and measuring instrument with internal or external frequencies. Allows synchronization of CMD to an internal or external frequency of 2.048, 10, 13, 26, 39, 52 MHz, or to the GSM bit clock. - Lists for $240.00
Opt. B4: Fast power ramp, phase/frequency error & BER measurement. Provides fast testing and numeric/graphic display of power bursts and phase/frequency error as well as various BER, RBER and FER test routines (necessary for Autotest). - Lists for $2,420.00
Opt. B41: Includes audio frequency (AF) generator, voltmeter, distortion meter and frequency counter. Allows measurements on the audio interface or on modules. Enables frequency measurements up to 60 MHz which is required for LO alignment. - Lists for $1,400.00
Opt. B42: High dynamic range burst analyzer. Enhances dynamic range to more than 72 dB and allows the power ramp to be measured in the entire specified GSM, GSM1800 and GSM1900 range. Determines whether transmitter blanking in active time slots is correct. - Lists for $1,525.00
Opt. B43: Carries out GSM measurements of spectrum due to switching and modulation according to the GSM, GSM1800 and GSM1900 recommendations faster than any spectrum analyzer. - Lists for $1,595.00
Opt. B44: Audio multitone based on DSP techniques. Makes it possible to generate and measure up to 14 tones in about a second. Useful for loudness rating, frequency response and intermodulation analysis. - Lists for $590.00
Opt. B5: Real time speech Co/Decoder - Lists for $820.00
Opt. B6: Adapters for B6x options. Provides GSM specific signals and trigger signals for CMD55 on the multifunction connector at the front of the instrument.
Opt. B61: IEC/IEEE 488-bus interface. Remote control alternative to the RS-232-C interface fitt4ed as standard. Used for fast remote control of CMD. - Lists for $370.00
Opt. B19: PCS/GSM 1900 mobile and base station test. Provides the capability to test GSM1900 mobiles used on the North American market. - Lists for $3,400.00
Opt. U18: Output level of -15 dBm for RF input/output N connector. RF out 2 becomes nonfunctional, RF in/out 6 dB more sensitive (max. +40 dBm). - Lists for $2,525.00
Opt. U20: A special RF converter for the CMD 55 enables handover between GSM900 and GSM1800/1900 while maintaining the BCCH in the band (lower/upper) in which the handover was initiated. - Lists for $1,861.00
* GSM900, GSM1800 and GSM1900
* Testing and Handover from GSM900 and back
* Low weight and Small Size for Stationary, Portable, and Mobile use
* High-contrast Backlit LCD Screen with Large Characters and Simultaneous Indication of All Settings and Results
* Softkey Menu Control for Operator Convenience
* Remote Control via IEC/IEEE Bus (with option B61)
* Go/Nogo tests and comprehensive testing of mobiles
* Powerful signaling capabilities
* Short measurement time ensuring high throughput
* Simple interactive operation
* No specialized GSM knowledge required
* Service mode for exact fault location
* Autotest - complete mobile testing at a keystroke
* Very fast remote control operation
* Excellent price/performance ratio
* GSM (Global System for Mobile Communications) Testing
Test Functions (Basic Unit, this unit can do much more):
* Mobile Power Level Control
* SACCH Measurements (e.g., RxLev, RxQual, Power Level)
The CMD55 Digital Radiocommunications Tester is a compact unit for testing GSM (Global System for Mobile communications), PCN (DCS 1800) and PCS (PCS 1900) mobiles. It combines small dimensions with high measurement accuracy and speed.
The range of capabilities offered by the CMD55 includes all signaling, generator, and measurement functions required for verifying the correct operation of the device-under-test. GO/NO-GO tests and accurate analysis using optional extensions make the CMD55 equally well suited for service and production.
Operation of the CMD55 is extremely user-friendly and requires no detailed GSM knowledge in order to make accurate measurements. The high-contrast, backlit LCD provides a clear display of measurement results. Softkeys along both sides of the display allows convenient call-up of test routines under menu control. Selected parameters and measured values are displayed in easy-to-read form.
Various specific parameters are preset and permit direct testing without any operation control. The operator can modify all parameters individually in the configuration menus for customized testing.
For testing mobile phones, the CMD55 simulations a GSM, PCN, and PCS (with Opt. B19) base station. Using its two RF synthesizers, it delivers a continuous BCCH signal in addition to the TCH.
Base Station Survey Measurements:
These are often done on real base stations or by using analog signal generators with power amplifiers. The CMD is able to simulate any GSM base station BCCH, including parameters like MCC, MNC, NCC, BA list, DTX and DRX information. These and the "cell barred" feature enable close-to-life conditions without having to use real BTS.
Frequency Drift (0 to 35°C): < or = to 1.5 x 10-6.
Aging (at 35°C): < or = to 0.5 x 10-6/year.
RF Generator 1 Characteristics:
GSM Band: 935.2 to 959.8 MHz
DCS 1800 Band: 1805.2 to 1879.8 MHz
PCS 1900 Band (Opt. B19): 1930.2 to 1909.8 MHz
Frequency Error: Same as time base.
Resolution: Same as channel spacing in the GSM and DCS bands.
Frequency Setting Time: < or = to 3 ms for phase error < 2°.
GSM and DCS 1800 Band: -35 to -120 dBm.
PCS 1900 (Opt. B19): -37 to -120 dBm.
GSM and DCS 1800 Band: +11 to -77 dBm.
PCS 1900 (Opt. B19): +9 to -77 dBm.
RF IN/OUT: < or = to 1.5 dB (< or = to 1 dB at -104 dBm).
Harmonics RF IN/OUT: < -30 dBc.
Modulation: GMSK, B x T = 0.3.
Phase Error: < or = to 4° rms, < or = to 10° peak.
RF Generator 2 Characteristics:
GSM Band: 935.2 to 959.8 MHz
DCS 1800 Band: 1805.2 to 1879.8 MHz
PCS 1900 Band (Opt. B19): 1930.2 to 1909.8 MHz
Frequency Error: Same as time base.
Resolution: Same as channel spacing in the GSM, DCS and PCS bands.
Frequency Setting Time: < or = to 3 ms for phase error < 2°.
GSM and DCS 1800 Band: -37 dBm.
PCS 1900 (Opt. B19): -39 dBm.
GSM and DCS 1800 Band: +9 dBm.
PCS 1900 (Opt. B19): +7 dBm.
RF IN/OUT: < or = to 1.5 dB.
Harmonics RF IN/OUT: < -30 dBc.
Modulation: GMSK, B x T = 0.3.
Phase Error: < or = to 4° rms, < or = to 10° peak.
Peak Mower Meter (RF IN/OUT) Characteristics:
DCS 1800 Band: 1700 to 1900 MHz.
PCS 1900 Band (Opt. B19): 1700 to 2000 MHz.
DCS 1800 and PCS 1900 Band (Opt. B19): 0 to 33 dBm.
GSM Band: < or = to 0.5 dB + resolution (P > 10 dBm).
DCS 1800 and PCS 1900 Band (Opt. B19): < or = to 0.8 dB + resolution (P > 4 dBm).
Phase and Frequency Error Measurement (With Opt. B4) Characteristics:
GSM Band: 890.2 to 914.8 MHz.
DCS 1800 Band: 1710.2 to 1784.8 MHz.
PCS 1900 Band (Opt. B19): 1850.2 to 1909.8 MHz.
DCS 1800 and PCS 1900 Band (Opt. B19): 0 to 33 dBm.
Inherent Phase Error: < 1.5° rms, < 5° peak.
Frequency Measurement Error: <5 Hz + time base.
Burst Power Measurement (With Opt. B4) Characteristics:
GSM Band: 890.2 to 914.8 MHz.
DCS 1800 Band: 1717.2 to 1784.8 MHz.
PCS 1900 Band (Opt. B19): 1850.2 to 1909.8 MHz.
Reference Level for Full Dynamic Range:
DCS 1800 and PCS 1900 (Opt. B19) Band: 0 to 33 dBm.
GSM and DCS 1800 Band: -37 to 0 dBm.
PCS 1900 Band (Opt. B19): -31 to 0 dBm.
Absolute Measurement Error of Peak Power:
GSM Band: < or = to 0.5 dBm + resolution (P > 10 dBm).
DCS 1800 and PCS 1900 (Opt. B19) Band: < or = to 0.8 dBm + resolution (P > 4 dBm).
GSM and DCS 1800 Band: < or = to 1.3 dB.
DCS 1800 and PCS 1900 Band (Opt. B19): < or = to 1.5 dBm.
Inherent Ripple in Active Part of Time Slot: 0.1 dB.
Burst Analysis with High Dynamic Range (With Opt. B42):
Relative Error of Individual Test Samples: < or = to 1.5 dB to 72 dB below peak power.
PCS 1900 Band (Opt. B19): < -42 dBm.
PCS 1900 Band (Opt. B19): < -79 dBm.
Reference Frequency Inputs/Outputs (with Opt. B3):
Synchronization Input - Frequency (selectable): GSM bit clock (270.8 kHz), 2, 4, 16 times GSM bit clock, 1 to 13 MHz in 1 MHz steps, 2.048, 26, 39, 52 MHz.
Impedance: Approx. 100 Ohms.
Synchronization Output 1 - Frequency: 10 MHz with internal reference or frequency at synchronization input with external reference.
Synchronization Output 2 - Frequency (selectable): GSM bit clock (270.8 kHz), 2, 4, 16 times GSM bit clock, 1, 2, 4, or 13 MHz.
IEC/IEEE Bus Interface (with Opt. B61): Interface to IEC 625-1 (IEEE 488), SCPI-compatible instruction set.
Power Requirement Characteristics:
Line Voltage: 100 to 120 VAC, +/- 10%, 200 to 240 VAC +/- 10%.
Line Frequency: 50 to 400 Hz +/- 5%.
Power Consumption (without options): Approx. 85 W.
Environmental Characteristics:
Operating Temperature Range: 0 to 45°C to DIN IEC 68-2-1/2.
Storage Temperature Range: 40 to +60°C.
Electromagnetic Compatibility: Corresponds to requirements of European EMC guidelines (89/336/EEC).
Sine Vibration: DIN EIC 68-2-6, 5 to 55 Hz, amplitude 0.15 mm, two cycles.
Random Vibration: DIN 40046, part 24, 10 to 300 Hz, 10 m/s2, 5 minutes/axis.
Shock: To MILD-STD 810 D, 400 m/s2, shock spectrum in 6 main axes.
Electrical Safety: VDE 0411, Class 1.
Physical Characteristics (does not include packaging):
Weight (without Options): Approx. 29.8 lbs. (13.5 kg).
For More Pictures Please Click the Following:
* Picture 2 - Hardware Option Screen
* Picture 3 - Software Option Screen
* Picture 4 - Back of the Unit
