The QSDC-130-470-50-6-S from Qualwave is a Directional Coupler with Frequency 130 to 470 MHz, Coupling 6±1.2 dB, Directivity 20 dB, Average Power 50 W, Insertion Loss 0.7 dB. Tags: Module with Connectors. More details for QSDC-130-470-50-6-S can be seen below.