The QSDC-2000-18000-30 from Qualwave is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 10 to 30 dB, Directivity 10 dB, Average Power 30 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for QSDC-2000-18000-30 can be seen below.