The DCE30S-10.75-12.75 from ESJ Technology is a Directional Coupler with Frequency 10.75 to 12.75 GHz, Coupling 30 dB, Coupling Variation ±1 dB, Directivity 15 dB, Average Power 50 W. Tags: Module with Connectors. More details for DCE30S-10.75-12.75 can be seen below.