The RMCO20.800-2200Nf from Response Microwave Inc is a Directional Coupler with Frequency 800 to 2200 MHz, Coupling 20 dB, Directivity 20 dB, Average Power 50 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for RMCO20.800-2200Nf can be seen below.