The Portek A338 from GSI is a Vector Network Analyzer with Frequency 300 KHz to 8 GHz, Output Power -60 to 10 dBm, Noise Floor -125 dBm, IF Bandwidth 10 Hz to 3 KHz, Harmonics -25 dBc. Tags: VNA with Screen. More details for Portek A338 can be seen below.