The DC3001005000GH from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 1 to 50 GHz, Coupling 30 dB, Coupling Variation ±0.2 to ±1.0 dB(Accuracy), Frequency Sensitivity ±1.2 to ±1.5 dB, Directivity 10 to 12 dB. Tags: Module with Connectors. More details for DC3001005000GH can be seen below.