The CD-2-1000-4000-20-500-NM-NF-NF / 001624 from DETI Microwave is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±1 dB(Coupling value tolerance), Frequency 1 to 4 GHz, Peak Power 10 kW, Average Power 500 W. Tags: Module with Connectors. More details for CD-2-1000-4000-20-500-NM-NF-NF / 001624 can be seen below.