The LDDC-7/12.4-20S from Leader-MW is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±1.25 dB, Frequency 7 to 12.4 GHz, Average Power 50 W, Insertion Loss 0.7 dB. Tags: Module with Connectors. More details for LDDC-7/12.4-20S can be seen below.