The QSDC-6500-11500-20-20-S from Qualwave is a Directional Coupler with Frequency 6500 to 11500 MHz, Coupling 20±1 dB, Directivity 12 dB, Average Power 20 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for QSDC-6500-11500-20-20-S can be seen below.