The QDDC-6000-26500-30 from Qualwave is a Dual Directional Coupler with Coupling 10 to 30 dB, Coupling Variation ±0.8 dB, Frequency 6000 to 26500 MHz, Average Power 30 W, Insertion Loss 1 to 2.4 dB. Tags: Module with Connectors. More details for QDDC-6000-26500-30 can be seen below.