The DC2000800170GA from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 0.8 to 1.7 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.6 dB, Directivity 22 to 26 dB. Tags: Module with Connectors. More details for DC2000800170GA can be seen below.