The QSDC-8000-12000-K2-37.5-NS from Qualwave is a Directional Coupler with Frequency 8000 to 12000 MHz, Coupling 37.5±0.8 dB, Directivity 13 dB, Average Power 200 W, Insertion Loss 0.7 dB. Tags: Module with Connectors. More details for QSDC-8000-12000-K2-37.5-NS can be seen below.