The QSDC-6000-18000-80-35-S from Qualwave is a Directional Coupler with Frequency 6000 to 18000 MHz, Coupling 35±0.75 dB, Directivity 15 dB, Average Power 80 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for QSDC-6000-18000-80-35-S can be seen below.