The QSDC-350-700-8K-50-7N from Qualwave is a Directional Coupler with Frequency 350 to 700 MHz, Coupling 50±1.2 dB, Directivity 18 dB, Average Power 8000 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-350-700-8K-50-7N can be seen below.