The QSDC-500-2000-10-15-S from Qualwave is a Directional Coupler with Frequency 0.5 to 2 GHz, Coupling 15±1 dB, Directivity 18 dB, Average Power 15 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for QSDC-500-2000-10-15-S can be seen below.