The MDC3223-30 from Preferred Power Products (P3) is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±1.25 dB, Frequency 0.5 to 1 GHz, Peak Power 3 kW, Average Power 50 W. Tags: Module with Connectors. More details for MDC3223-30 can be seen below.