Digital Radiocommunication Tester.
Includes the following hardware options:
B1/2 OXCO Oscillator
B3 Multi Ref Freq in / out
B4 DSP Measurement
B41 Audio Measurement Unit
B42 High Dynamic Burst Analysis
B43 Spectrum Measurement
B6 Adaptor for B6x options
B61 IEE488
B62 memory card Interface
B7 ABIS Interface
B19 GSM 1900 / PCS1900
Rohde & Schwarz CMD57