The RMCO20.2200Nf from Response Microwave Inc is a Directional Coupler with Frequency 800 MHz to 2.2 GHz, Coupling 20 +/- 0.7 dB, Coupling Variation 0.7 dB, Directivity 18 dB, Average Power 50 W. Tags: Module with Connectors. More details for RMCO20.2200Nf can be seen below.