The QDDC-1-100-5K-70-7S from Qualwave is a Dual Directional Coupler with Coupling 70 dB, Coupling Variation ±1 dB, Frequency 1 to 100 MHz, Average Power 5000 W, Insertion Loss 0.1 dB. Tags: Module with Connectors. More details for QDDC-1-100-5K-70-7S can be seen below.