The QSDC-2200-2300-20 from Qualwave is a Directional Coupler with Frequency 2200 to 2300 MHz, Coupling 10±1 to 20±1 dB, Directivity 20 dB, Average Power 20 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for QSDC-2200-2300-20 can be seen below.