The Model ATH4G6 is a high gain, high power microwave horn antenna. With a typical gain of 18dB over isotropic, the Model ATH4G6 supplies the high intensity fields necessary for DO160 HIRF testing. The Model ATH4G6 is compact and light weight for ready mobility, yet is built tough enough for the extra demands of outdoor use and easily mounts on a tripod or mounting plate. Part of a family of microwave horn antennas, the Model ATH4G6 provides the 4-6GHz response required for DO160 test specifications. The ATH4G6 is ideally suited for use with the AR Model 8000TP4G6 and other amplifiers in this frequency range.