The DBDC2000500800A from Qotana is a Directional Coupler with Frequency 500 MHz to 8 GHz, Coupling 18.5 to 21.5 dB, Frequency Sensitivity ±0.7 to 1.2 dB, Directivity 16 to 20 dB, Average Power 50 W. Tags: Module with Connectors. More details for DBDC2000500800A can be seen below.