The DC0009 from SUNGSAN is a Directional Coupler with Frequency 300 MHz to 6 GHz, Coupling 36 to 43 dB, Coupling Variation ±2.5 dB(Flatness), Directivity 9 to 13 dB, Average Power 50 W. Tags: Module with Connectors. More details for DC0009 can be seen below.