CMU-B11 Reference OCXO, aging 2 × 10–7/year
CMU-B12 High-stability OCXO, aging 3.5 × 10–8/year; oven crystal with highest longterm Stability
CMU-B17 Analog I/Q IF interface
CMU-B21 Unversal signaling unit; provides multistandard signaling hardware; required for WCDMA 3GPP FDD
CMU-B21 Universal signaling unit; includes signaling module for AMPS, TDMA, GSM/GPRS/EGPRS
CMU-B41 Audio generator and analyzer; includes audio frequency (AF) generator, voltmeter, distortion meter
CMU-B52 Internal versatile multimode speech coder/decoder; R&S CMU-B21 necessary
CMU-B53 Bluetooth extension; R&S CMU-B21 necessary
CMU-B55 HD option for (E)GPRS application testing with more than 2 UL slots
CMU-B56 WCDMA (3GPP FDD) signaling module for R&S CMU-B21 model 14
CMU-B68 Versatile baseband board for WCDMA (3GPP FDD) layer 1, DL and UL, non-signaling
CMU-B83 CDMA2000 1xRTT signaling unit
CMU-B83 CDMA2000 1xRTT signaling unit; required for CDMA2000 1xEV-DO Rev. 0 and A signaling
CMU-B85 8 k/13 k QCELP, 8k EVRC speech codec for R&S CMU-B83 CDMA2000 1xRTT signaling unit;
8k/13k QCELP, 8k EVRC, EVRC-B speech codec for CMU-B83 model 22 CDMA2000 1xRTT signaling unit
CMU-B87 Interface for extensive CDMA2000 1xRTT /1xEV-DO data testing for CDMA2000 1xRTT signaling unit R&S CMU-B83; requires R&S CMU-K87
CMU-B88 CDMA2000 1xEV-DO Rev. 0 and A non-signaling generator for R&S CMU-B83 model 12 CDMA2000 1xRTT signaling unit
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