The DC3006001800GH from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 6 to 18 GHz, Coupling 30 dB, Coupling Variation ±0.2 to ±0.5 dB (Accuracy), Frequency Sensitivity ±0.5 to ±0.8 dB, Directivity 15 to 17 dB. Tags: Module with Connectors. More details for DC3006001800GH can be seen below.