The DBDC1000600400C from Qotana is a Directional Coupler with Frequency 600 MHz to 4 GHz, Coupling 9 to 11 dB, Frequency Sensitivity ±0.5 to 0.75 dB, Directivity 18 to 22 dB, Average Power 50 W. Tags: Module with Connectors. More details for DBDC1000600400C can be seen below.