The QSDC-1000-18000-30-6-S from Qualwave is a Directional Coupler with Frequency 1000 to 18000 MHz, Coupling 6±0.6 dB, Directivity 15 dB, Average Power 30 W, Insertion Loss 2.5 dB. Tags: Module with Connectors. More details for QSDC-1000-18000-30-6-S can be seen below.