The QSDC-20-200-2K5-55-7S from Qualwave is a Directional Coupler with Frequency 20 to 200 MHz, Coupling 55±1 dB, Directivity 19 dB, Average Power 2500 W, Insertion Loss 0.15 dB. Tags: Module with Connectors. More details for QSDC-20-200-2K5-55-7S can be seen below.