The QSDC-18000-26500-30-6-S from Qualwave is a Directional Coupler with Frequency 18000 to 26500 MHz, Coupling 6±0.5 dB, Directivity 14 dB, Average Power 30 W, Insertion Loss 2.3 dB. Tags: Module with Connectors. More details for QSDC-18000-26500-30-6-S can be seen below.