The QDDC-80-1000-K2-40-N from Qualwave is a Dual Directional Coupler with Coupling 40 dB, Coupling Variation ±1.5 dB, Frequency 80 to 1000 MHz, Average Power 200 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QDDC-80-1000-K2-40-N can be seen below.