The LDDC-1/6-40N-1 from Leader-MW is a Dual Directional Coupler with Coupling 40 dB, Coupling Variation ±1 dB, Frequency 1 to 6 GHz, Average Power 300 W, Insertion Loss 0.35 dB. Tags: Module with Connectors. More details for LDDC-1/6-40N-1 can be seen below.