The RFDDC2G18G10 from RF-Lambda is a Dual Directional Coupler with Coupling 9 to 11 dB, Frequency 2 to 18 GHz, Peak Power 500 W, Average Power 50 W, Insertion Loss 1 to 2 dB. Tags: Module with Connectors. More details for RFDDC2G18G10 can be seen below.