리퍼비시 계측기
| B2 | 7 GHz Frequency Extension |
| B4 | Low Phase Noise and OCXO |
| B5 | FFT Filter |
| B7 | Vector Signal Analyzer |
| B8 | Tracking Generator 3.5 GHz |
| B9 | Tracking Generator 3.5 GHz with I?Q Modulator |
| B10 | Tracking Generator 7 GHz |
| B11 | Tracking Generator 7 GHz with I/Q Modulator |
| B12 | Switchable Attenuator Tracking Generator |
| B13 | 1 dB Attenuator |
| B15 | Controller |
| B16 | Ethernal Interface |
| B17 | 2nd IEC/Bus Interface |
| B18 | Remvable Harddisk |
| B19 | Second Harddisk for FSE-18 |
| B21 | External Mixing |
| B22 | Increase Level Accuracy up to 2 GHz |
| B23 | Broadband Output 741.4 MHz |
| K3 | Noise Measurement Software |
| K4 | Phase Noise Measurement Software |
| K10/K11 | GSM Application Firmware |