The QSDC-500-2000-K8-50-NS from Qualwave is a Directional Coupler with Frequency 500 to 2000 MHz, Coupling 50±0.8 dB, Directivity 18 dB, Average Power 800 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-500-2000-K8-50-NS can be seen below.