The QSDC-100-600-K2-40-N from Qualwave is a Directional Coupler with Frequency 100 to 600 MHz, Coupling 40±1 dB, Directivity 18 dB, Average Power 200 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-100-600-K2-40-N can be seen below.