The LDDC-0.5/1-30S from Leader-MW is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±1.25 dB, Frequency 0.5 to 1 GHz, Average Power 50 W, Insertion Loss 0.4 dB. Tags: Module with Connectors. More details for LDDC-0.5/1-30S can be seen below.