The QSDC-1-10-K15-20-S from Qualwave is a Directional Coupler with Frequency 1 to 10 MHz, Coupling 20±0.5 dB, Directivity 20 dB, Average Power 150 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for QSDC-1-10-K15-20-S can be seen below.