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Digital Radio communica
B1: Adds OCXO reference oscillator. Aging rate is 1x10E-7
B3: Multi-frequency reference I/O for DUT and measuring instruments @ 2.048/10/13/26/39 or 52 MHz
B60 Internal option required to support B61 and B62 options
B61 Adds IEEE488/IEC625 GPIB Interface
B62 Adds memory card interface. Allows storage of instrument setups and easy software upgrades
B81 Lets white gaussian noise be added to the base station signal, simulating CDMA traffic channels
B82 Analog extension. Allows AMPS, N-AMPS, and J/N/E-TACS mobile radio measurements.
B14: Rate set 2 extension for CDMA mobile phones. Supports 13 kbit/s data rate
K1: CDMA cellular extension. Allows 800 MHz CDMA measurements on CDMA mobile phones in cellular band
K2 :CDMA PCS extension. Allows 1900/1700 MHz CDMA measurements on CDMA mobile phones in PCS band