The C4409 from Copper Mountain Technologies is a 4-port modular vector network analyzer that operates from 100 kHz to 9 GHz. The VNA can measure all S parameters and can be controlled using any Windows PC or laptop. It has a dynamic range of up to 162 dB (1 Hz IF BW), directivity of 46 dB and sweep speeds of 10 microseconds per point. The analyzer is available as a rack mount unit that measures 440 x 96 mm with BNC female connectors and a three-year warranty.