The DBDD3000200050A from Qotana is a Dual Directional Coupler with Coupling 29 to 31 dB, Frequency 200 to 500 MHz, Peak Power 3 kW, Average Power 300 W, Insertion Loss 0.2 to 1.2 dB. Tags: Module with Connectors. More details for DBDD3000200050A can be seen below.