The Model ATH800M5GA is a wide band, high gain, microwave horn antenna that provides high field intensities. With a minimum gain of 13.0 dB over isotropic, the Model ATH800M5GA supplies the constant high intensity fields necessary for RFI/EMI field testing within and beyond the confines of a shielded room. Specially designed septums are installed to focus the beamwidth ensuring the intensity of the field for 3 meter testing. The Model ATH800M5GA is compact and lightweight for ready mobility, yet is built tough enough for the extra demands of outdoor use and easily mounts on a tripod or back plate. Part of a family of microwave frequency antennas the Model ATH800M5GA provides the lower frequency microwave response required for many often used test specifications. The ATH800M5GA is ideally suited for radar pulse testing for both the 1.2 1.4 GHz and 2.7 3.1 GHz bands. FORD ES-XW7T-1A278-AC standard with revision dated on March 19, 2006 recommends the use of this antenna to meet the requirement for radar pulse testing in the above two bands.