The DCE10S-0.3-2.4 from ESJ Technology is a Directional Coupler with Frequency 0.3 to 2.4 GHz, Coupling 10 dB, Directivity 18 dB, Average Power 30 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for DCE10S-0.3-2.4 can be seen below.