The QSDC-1000-8000-30-30-S from Qualwave is a Directional Coupler with Frequency 1000 to 8000 MHz, Coupling 30±1.2 dB, Directivity 15 dB, Average Power 30 W, Insertion Loss 0.8 dB. Tags: Module with Connectors. More details for QSDC-1000-8000-30-30-S can be seen below.