The C2-A05 from RD Microwaves is a Dual Directional Coupler with Coupling 23 to 46 dB, Coupling Variation ±1 to ±2 dB, Frequency 160 to 500 MHz, Peak Power 3 KW, Average Power 500 W. Tags: Module with Connectors. More details for C2-A05 can be seen below.