The QSDC-600-6000-50 from Qualwave is a Directional Coupler with Frequency 0.6 to 6 GHz, Coupling 10 to 30 dB, Directivity 15 dB, Average Power 50 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for QSDC-600-6000-50 can be seen below.