The QSDC-470-860-K5 from Qualwave is a Directional Coupler with Frequency 470 to 860 MHz, Coupling 30±0.75 to 50±0.75 dB, Directivity 20 dB, Average Power 500 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-470-860-K5 can be seen below.