The C1-B97-10D from RD Microwaves is a Directional Coupler with Frequency 600 MHz to 2.7 GHz, Coupling 10 dB, Coupling Variation ±0.5 to ±1.2 dB, Directivity 20 dB, Average Power 200 W. Tags: Module with Connectors. More details for C1-B97-10D can be seen below.