The PCD-100-600-R5NS30 from Preferred Power Products (P3) is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±1 dB, Frequency 100 to 600 MHz, Average Power 500 W, Insertion Loss 0.4 dB. Tags: Module with Connectors. More details for PCD-100-600-R5NS30 can be seen below.