The QDDC-700-6000-50 from Qualwave is a Dual Directional Coupler with Coupling 10 to 30 dB, Coupling Variation ±1.2 to ±1.5 dB, Frequency 700 to 6000 MHz, Average Power 50 W, Insertion Loss 2.2 dB. Tags: Module with Connectors. More details for QDDC-700-6000-50 can be seen below.