The C1-B97-06MD43 from RD Microwaves is a Directional Coupler with Frequency 600 MHz to 2.7 GHz, Coupling 6 dB, Coupling Variation ±1 dB, Directivity 20 dB, Average Power 200 W. Tags: Module with Connectors. More details for C1-B97-06MD43 can be seen below.