The RFCP-30400-10-S from RFtronics is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±1 dB, Frequency 30 to 400 MHz, Average Power 150 W, Insertion Loss 0.85 dB. Tags: Module with Connectors. More details for RFCP-30400-10-S can be seen below.