The R&S ZVT20 from Rohde & Schwarz is a Vector Network Analyzer with Frequency 10 MHz to 20 GHz, Output Power typ. -40 dBm to 15 dBm, Dynamic Range typ. 110 dB to 133 dB, Measurement Speed <2 µs per point, Test Points 60001 points per trace. Tags: VNA with Screen. More details for R&S ZVT20 can be seen below.