The PCD-1000-2000-R5NS20 from Preferred Power Products (P3) is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±0.5 dB, Frequency 1 to 2 GHz, Average Power 500 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for PCD-1000-2000-R5NS20 can be seen below.