The QSDC-50-1000-K8-50-NS from Qualwave is a Directional Coupler with Frequency 50 to 1000 MHz, Coupling 50±2 dB, Directivity 20 dB, Average Power 800 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-50-1000-K8-50-NS can be seen below.