The DC3002000300GA from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2 to 3 GHz, Coupling 30 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.6 dB, Directivity 20 dB. Tags: Module with Connectors. More details for DC3002000300GA can be seen below.