The R&S ZVT20 from Rohde & Schwarz is a Vector Network Analyzer with Frequency 10 MHz to 20 GHz, IF Bandwidth 5 MHz to 30 MHz, Output Power typ. -40 dBm to 15 dBm, Dynamic Range typ. 110 dB to 133 dB, Measurement Speed <2 µs per point. Tags: Vector Network Analyzer. More details for R&S ZVT20 can be seen below.