The QSDC-500-2000-10-15-S from Qualwave is a Directional Coupler with Frequency 500 to 2000 MHz, Coupling 15±1 dB, Directivity 18 dB, Average Power 10 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for QSDC-500-2000-10-15-S can be seen below.