The QSDC-200-700-K2-30-S from Qualwave is a Directional Coupler with Frequency 200 to 700 MHz, Coupling 30±1 dB, Directivity 18 dB, Average Power 200 W, Insertion Loss 0.4 dB. Tags: Module with Connectors. More details for QSDC-200-700-K2-30-S can be seen below.