The R752A Directional Coupler is an important tool in waveguide measurements. It can be used to monitor power, measure reflections, mix signals, or isolate signal sources or wavemeters. It operates in the frequency range of 26.5 to 40.0GHz and a 3 dB nominal coupling factor. Minimum directivity of 40 dB. Type WR28 waveguide and UG-599/U flanges.