The MDC3288-30 from Preferred Power Products (P3) is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±1.25 dB, Frequency 12.4 to 18 GHz, Peak Power 1 kW, Average Power 50 W. Tags: Module with Connectors. More details for MDC3288-30 can be seen below.