The QSDC-500-26500-30 from Qualwave is a Directional Coupler with Frequency 500 to 26500 MHz, Coupling 6±0.8 to 30±1.8 dB, Directivity 13 to 14 dB, Average Power 30 W, Insertion Loss 1.3 to 2.9 dB. Tags: Module with Connectors. More details for QSDC-500-26500-30 can be seen below.