The DC1570M2860B30C100PS-01 from Dyne Tech is a Directional Coupler with Frequency 140 MHz to 3 GHz, Coupling 30 dB, Coupling Variation ±1.5 to ±3.5 dB, Directivity 20 dB, Average Power 100 W. Tags: Module with Connectors. More details for DC1570M2860B30C100PS-01 can be seen below.