Rhode & Schwarz ZVR with the following options B4, B6, B7, B15, B21, B22, B23, B24, B25 and the following FSE Options FSE-B16 and FSE-B17. Very loaded and in great condition. 4 Ghz Vector network Analyzer. Features Excellent Dynamic Range >130 dB (IF Bandwidth 10 Hz) Low Inherent Noise < -130 dBm (IF Bandwidth 10 Hz) Broad Frequency Range for Universal Use 10 Hz to 4 GHz (ZVRE, ZVR) 20 kHz to 8 GHz (ZVCE, ZVC) High Measurement Speed < 125 µs/point (Normalized) < 240 µs/point (Fully Calibrated) Fast Data Transfer via IEC/IEEE Bus Transfer Time < 15 ms (200 Points) Customized, Upgradable Family Concept Modular Design Using Options High Sweep Rate >>25 Sweeps/s (200 points) Manual Calibration Techniques TOM, TRM, TRL, TNA, TOM-X Automatic Calibration AutoKal Internal PC with Microsoft Windows NT, Suitable for PC Applications; Includes Keyboard and Mouse. Applications RF and Wireless Communications Satellite Broadcasting Equipment Component Test Subsystem Test Manufacturing Test Automated Test Short Calibration Times With the new R&S calibration method AutoKal a simple through-connection of the test ports is sufficient to perform automatic full two-port calibration. This calibration needs less than 20 seconds (including computation of error parameters) and cuts time and operating errors to a minimum. Short measurement time of < 125 µs per point considerably increases the throughput in automatic test systems. High Sweep Rate The high measurement speed allows more than 25 sweeps/s with 200 points. This gives a real analog feeling for tuning sensitive DUTs in real time. The short measurement time of < 125 µs per point considerably increases the throughput in automatic test systems. Dynamic Range >130 dB The high stopband and low passband attenuation of modern RF components are difficult for network analyzers to handle. However, thanks to fundamental mixing, the useful dynamic range of the R&S network analyzers is more than 25 dB better than that achieved by conventional sampling techniques. Because of the low-noise front end, the ZVR models attain a dynamic range of > 130 dB, so transmission measurements on DUTs with extremely high stopband attenuation can be performed at high speed - even at low input levels.