The C2-A22 from RD Microwaves is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±2 to ±3 dB, Frequency 30 MHz to 3 GHz, Peak Power 3 KW, Average Power 500 W. Tags: Module with Connectors. More details for C2-A22 can be seen below.