The QSDC-2200-2300-K5-43-NS from Qualwave is a Directional Coupler with Frequency 2200 to 2300 MHz, Coupling 43±0.3 dB, Directivity 16 dB, Average Power 500 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-2200-2300-K5-43-NS can be seen below.