The QSDC-500-6000-K3-40-N from Qualwave is a Directional Coupler with Frequency 500 to 6000 MHz, Coupling 40±2 dB, Directivity 15 dB, Average Power 200 W, Insertion Loss 0.6 dB. Tags: Module with Connectors. More details for QSDC-500-6000-K3-40-N can be seen below.