The DCE20N-0.8-2.5-200 from ESJ Technology is a Directional Coupler with Frequency 0.8 to 2.5 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Directivity 18 dB, Average Power 200 W. Tags: Module with Connectors. More details for DCE20N-0.8-2.5-200 can be seen below.