Please update the description: The 804/1 is a two-port modular VNA from Copper Mountain Technology that operates from 100 kHz to 8 GHz. It can be used to test up to 4 S-Parameters (S11, S12, S21, and S22) simultaneously. The VNA has two independent signal sources with a power output range from -60 dBm to 10 dBm. It can measure up to 500,001 measurement points with a time of 100 us per point. The Planar 801/1 can be controlled from a Windows PC via a USB using a user-friendly UI.