CMD57 Digital Radiocommunication Tester
R&S CMD57 digital radiocommunication tester is an advanced top-class instrument for measurements on base stations (BTS) and BTS modules. The CMD57 is designed for measurements in line with GSM900, E-GSM, UIC ? European train radiotelephony, GSM1800, GSM1900 optionally. R&S CMD allows measurements on transmitters and receivers of base stations without affecting telephone calls in progress.