The DC3000600600GA from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 0.6 to 6 GHz, Coupling 30 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1 dB, Directivity 15 to 18 dB. Tags: Module with Connectors. More details for DC3000600600GA can be seen below.