Rohde & Schwarz CMD53

Rohde & Schwarz CMD53 Options:

• CMD53 - CMD-B1 - OCXO reference oscillator, aging ±1 x 10⁻⁷. Ensures high absolute accuracy, minimum temperature-dependent drift and especially high long-term stability. Used for measurements with exacting requirements on frequency stability.
• CMD53 - CMD-B17 - I/Q signals from the CMD modulator and burst trigger signals are provided for the Rohde&Schwarz Signal Generator SMIQ for GSM conformity tests under fading conditions.
• CMD53 - CMD-B19 - GSM1900 mobile and base station test. Provides the capability to test GSM1900 mobiles used on the North American market. Includes factory recalibration of unit.
• CMD53 - CMD-B2 - High-stability OCXO, aging 3.5 x 10⁻⁸. Oven crystal with highest long-term stability. Ensures compliance with tolerances specified by GSM. Used for highly demanding requirements on frequency stability to GSM 11.20.
• CMD53 - CMD-B20 - GSM-specific voltage and current measurement. Allows readings to be taken in synchronicity with the GSM pulsed mode.
• CMD53 - CMD-B3 - Multifrequency reference input/output. For synchronizing DUT and measuring instrument with internal or external frequencies. Allows synchronization of the CMD to an internal or external frequency of 2.048, 10, 13, 26, 39, 52 MHz, or to the GSM bit clock.
• CMD53 - CMD-B30 - High-level RF output/sensitive RF input. In addition to the normal RF I/O, the CMD has optionally a high-sensitivity input and a high-level output which enable over-the-air tests on modules or handhelds by means of couplers like the CTD-Z10.
• CMD53 - CMD-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).
• CMD53 - CMD-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. Requires CMD-B4.
• CMD53 - CMD-B42 - High dynamic range burst analyzer. Enhances the dynamic range to more than 72 dB and allows the power ramp to be measured in the entire GSM, GSM1800 and GSM1900 range specified. Requires CMD-B4.
• CMD53 - CMD-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. Requires CMD-B4 and CMD-B42.
• CMD53 - CMD-B44 - Audio multitone option based on DSP techniques. Makes it possible to generate and measure up to 14 tones in about one second. Useful for loudness rating, frequency response and intermodulation analysis. Requires CMD-B4 and CMD-B41.
• CMD53 - CMD-B52 - Internal GSM full rate (FR), enhanced full rate (EFR) and half rate (HR) speech coder/decoder. Converts digital speech signals into analog signals and vice versa, allowing separate uplink and downlink audio measurements.
• CMD53 - CMD-B6 - Adapters for B6x options. Provides GSM-specific signals and trigger signals for CMD52/55/65 on the multifunction connector at the front of the instrument. Required for options CMD-B61 and CMD-B62.
• CMD53 - CMD-B61 - IEEE 488 bus interface. Remote control alternative to the RS-232-C interface fitted as standard. Used for fast remote control of the CMD. Requires CMD-B6.
• CMD53 - CMD-B62 - Memory card interface. Allows storage of instrument setups and fast and easy upgrade to new software features. Requires CMD-B6.
• CMD53 - CMD-K43 - Narrowband spectrum analyzer. Used for narrowband spectrum analysis (i.e. adjustments of I/Q modulators). Analysis of constant envelope and burst signals is possible. Requires CMD-B4.
• CMD53 - CMD-K80 - Frequency extension option. Additional frequency range R-GSM. Requires CMD-U10.
• CMD53 - CMD-U1 - Upgrade to GSM multiband functionality. Allows GSM dual-band handover with CMD53 and CMD55. Conversion of CMD50 into CMD53 and of CMD52 into CMD55.
• CMD53 - CMD-U10 - 8 MByte memory extension for CPU1 or CPU2. Allows the use of several advanced software features such as GSM dual-band handover, fast BER measurement (burst-by-burst) and R-GSM band. Only applicable to older versions of CMD50, CMD52 and CMD53, CMD55.
• CMD53 - CMD-U13 - 10 dB higher sensitivity at RF input/output N connector. RF input level range −10 dBm to +37 dBm instead of 0 dBm to +47 dBm. Only for GSM signals.
• CMD53 - CMD-U18 - Output level of −15 dBm for RF input/output N connector. RF out 2 becomes non-functional, RF in/out 6 dB more sensitive (max. +40 dBm). Only for GSM signals.
• CMD53 - CMD-U19 - GSM1900 mobile test. Provides the capability to test GSM1900 mobiles used on the North American market. Same as CMD-B19 if installation and recalibration can be done at the local Rohde&Schwarz service center.
• CMD53 - CMD-U20 - Special RF converter enabling handover between GSM900 and GSM1800/1900 while maintaining the BCCH in the band in which the handover was initiated. For older CMD53 in conjunction with CMD-U10 only.
• CMD53 - CMD-U5 - GSM time synchronization signal and demodulated I and Q signals are copied from the multifunction connector to three BNC connectors at the rear panel. Factory installation.
• CMD53 - CMD-U56 - Upgrade to support DECT in CMD53/55 multiband testers. Functionality comparable to that of CMD65. Factory installation.