The DBDC3000700300B from Qotana is a Directional Coupler with Frequency 700 MHz to 3 GHz, Coupling 29 to 31 dB, Frequency Sensitivity ±0.7 to 1 dB, Directivity 20 to 22 dB, Average Power 100 W. Tags: Module with Connectors. More details for DBDC3000700300B can be seen below.