The DC1D5G1GB30C50PS-01 from Dyne Tech is a Directional Coupler with Frequency 1 to 2 GHz, Coupling 30 dB, Coupling Variation ±1.2 dB, Directivity 20 dB, Average Power 50 W. Tags: Module with Connectors. More details for DC1D5G1GB30C50PS-01 can be seen below.