| B10 | GPIB interface |
| B22 | RF preamplifier gain 20 dB |
| B30 | DC power supply 12 - 28 V |
| B31 | NiMH battery pack |
| B4 | OCXO reference frequency |
| B5 | Additional interfaces video/IF-output, power meter 28 V - DC for noise source |
| B6 | TV trigger for FSL and for ZVL with ZVL- |
| B7 | Narrow resolution filters 10 Hz - 300 Hz |
| B8 | Gated sweep function for FSL and for ZVL with ZVL-K1 |
| C3 | Three years of depot calibration coverage based on the R&S recommended calibration interval - includes test data. The first calibration is included with product delivery with 2 additional depot calibration(s). |
| C5 | Five years of calibration coverage based on the R&S recommended calibration interval - includes test data. The first calibration is included with product delivery with 1 additional depot calibration(s). |
| DCV-1 | Documentation of calibration values |
| DCV-ZP | Printout of DCV (additional, in combination with DCV-Option only) |
| EVS-Z6 | Accessory: Protective hard cover (for EVS300, FSL, ZVL) |
| FSL-B10 | GPIB interface |
| FSL-B22 | RF preamplifier, gain 20 dB (software license) |
| FSL-B30 | DC power supply 12 - 28 V |
| FSL-B31 | NiMH battery pack |
| FSL-B4 | OCXO reference frequency |
| FSL-B5 | Additional interfaces video/IF-output, power meter 28 V - DC for noise source |
| FSL-B6 | TV trigger (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) (software license) |
| FSL-B7 | Narrow resolution filters, 10 Hz - 300 Hz (software license) |
| FSL-B8 | Gated sweep function (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) (software license) |
| FSL-K14 | Spectrogram measurement, application firmware (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) |
| FSL-K20 | Application firmware for cable TV and TV measurements (software license) |
| FSL-K30 | Application firmware for noise figure and gain measurements (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) |
| FSL-K7 | Analogue demodulation AM/FM/PM (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) (software license) |
| FSL-K72 | 3GPP Code Domain Power measurements for base station (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) |
| FSL-K8 | Application firmware for TX measurements acc. to Bluetooth v. 1.1 and 2.0 (EDR) (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) |
| FSL-K9 | Power sensor measurements with NRP (software license) |
| FSL-K91 | Application firmware for WLAN 802.11A,B,G measurements (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) |
| FSL-K93 | Application Firmware for WIMAX# 802.16 OFDM/OFDMA Measurements (for R&S®FSL and R&S®ZVL w. R&S®ZVL-K1) |
| K1 | Spectrum analysis function (for ZVL3, ZVL6, ZVL13) |
| K14 | Spectrogram measurement, application firmware for FSL and for ZVL with ZVL-K1 |
| K2 | Distance to Fault Measurement (for ZVL3, ZVL6, ZVL13) |
| K20 | Application firmware for cable TV and TV measurements for R&S FSL |
| K3 | Time Domain analysis (for ZVL3, ZVL6, ZVL13) |
| K30 | Application firmware for noise figure and gain measurements for FSL and for ZVL with ZVL-K1 |
| K7 | Analogue demodulation AM/FM/PM for FSL and for ZVL with ZVL-K1 |
| K72 | 3GPP Code Domain Power measurements for base station for FSL and for ZVL with ZVL-K1 |
| K8 | Application firmware for TX measurements acc. to Bluetooth v. 1.1 and 2.0 (EDR) for FSL and for ZVL with ZVL-K1 |
| K9 | Power sensor measurements with NRP |
| K91 | Application firmware for WLAN 802.11A,B,G measurements for FSL and for ZVL with ZVL-K1 |
| K93 | Application Firmware for WIMAX 802.16 OFDM/OFDMA Measurements for FSL and for ZVL with ZVL-K1 |
| R3 | Three years of depot repair coverage, including recalibration and test data if necessary to complete the repair. First year of repair coverage is provided by the 12-month new product warranty. |
| R5 | Five years of depot repair coverage, including re-calibration if necessary to complete the repair. First year of repair coverage is provided by the 12-month new product warranty. |
