The QDDC-300-2000-1K-50-N from Qualwave is a Dual Directional Coupler with Coupling 50 dB, Coupling Variation ±2 dB, Frequency 300 to 2000 MHz, Average Power 1000 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for QDDC-300-2000-1K-50-N can be seen below.