B1 | OCXO reference oscillator, Cannot be ordered with opt. B2. |
B2 | High stability OCXO, Cannot be ordered with opt. B1. |
B3 | Multifrequency reference input / output. |
B4 | Fast power ramp, phase/frequency error & BER measurement. Required for options B41, B42, B43, B44, and K43. |
B6 | Adapters for B6x options. Required for options B61 and B62. |
B17 | I/Q signals from the CMD monitor and burst trigger signals. |
B19 | GSM1900 mobile and base station test. (for CMD55 as of serial # 837176) |
B20 | GSM-specific voltage and current measurement. Standard with CMD55. |
B30 | High-level RF output / sensitive RF input. Standard with CMD55. |
B41 | Includes audio frequency (AF) generator, voltmeter, distortion meter, and frequency counter. Requires option B4. |
B42 | High dynamic range burst analyzer. Requires option B4. |
B43 | Carries out GSM measurements of spectrum due to switching and modulation according to the GSM, GSM1800, & GSM1900 recommendations faster than any spectrum analyzer. Requires opt. B4 and B42. |
B44 | Audio multitone option based on DSP techniques. Requires opt. B4 and B41 |
B51 | Internal GSM full rate (FR) and enhanced full rate (EFR) speech coder / decoder. |
B61 | IEC / IEEE 488-bus interface. Requires option B6. |
B62 | Memory card interface. Requires option B6. |
K43 | Narrowband spectrum analyzer. Requires option B4 |
K80 | Frequency extension option. Requires option U10. |
U1 | Upgrade to GSM multiband functionality. Some mobiles require option U20 to ensure correct dual-band handover operation. |
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. Not compatible with unit upgrades of option U56. Factory upgrade. |
U10 | 8MB memory extension for CPU1 or CPU2. Only for older versions. |
U11 | High speed processor including 8MB RAM. Only for older versions. |
U12 | Modification for fast BER (burst by burst) capability.Only for older versions |
U13 | 10dB higher sensitivity at RF input/output N connector. Only for GSM signals. |
U18 | Output level of -15dBm for RF input/output N connector. Only for GSM signals. |
U19 | GSM1900 mobile test. For CMD55 with serial # as of 837176. |
U20 | Special RF converter that enables handover between GSM900 and GSM1800/1900 while maintaining the BCCH in the band the handover was initiated. Standard in CMD55 current version. |
U56 | Upgrade to support DECT for CMD55 multiband testers. Factory installation. Not compatible with option U5. |