The IPP-3185 from Innovative Power Products is a Dual Directional Coupler with Coupling 50 dB, Coupling Variation ±1.5 dB, Frequency 225 MHz to 2.5 GHz, Average Power 100 W, Insertion Loss 0.50 dB. Tags: Module with Connectors. More details for IPP-3185 can be seen below.