The KEK-704H from Synergy Microwave Corporation is a Bi-Directional Coupler with Frequency 850 to 960 MHz, Coupling 30 dB, Coupling Variation ±0.25 dB (Flatness), Power 500 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for KEK-704H can be seen below.