The QDDC-80-1000-K3-60-N from Qualwave is a Dual Directional Coupler with Coupling 60 dB, Coupling Variation ±1 dB, Frequency 80 to 1000 MHz, Average Power 300 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QDDC-80-1000-K3-60-N can be seen below.