The QDDC-0.5-32-50-30-N from Qualwave is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±1 dB, Frequency 0.5 to 32 MHz, Average Power 50 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for QDDC-0.5-32-50-30-N can be seen below.