The MC2011-20 from Fairview Microwave is a Directional Coupler with Frequency 500 MHz to 1 GHz, Coupling 6, 10, 20, 30 dB, Directivity 25 dB, Power 4 to 50 W, Average Power 4 to 50 W. Tags: Module with Connectors. More details for MC2011-20 can be seen below.