Antenna Associates' Model AS-2189 Antenna is also known as the AA75 Antenna. Its function is to provide identification and position detection data for Air Traffic Control or Military IFF Applications.
The AS-2189 is a smaller version of our AS-2188/U Antenna. The AS-2189 (also known as the AA75) is a rugged antenna utilized around the world. It is constructed of tempered aluminum to easily withstand the harshest environments.
In addition to its mechanical benefits, the AS-2189 Antenna offers excellent RF performance. The Sum beam is highly directional while the difference beam generates superb side lobe suppression (SLS) and Sum Beam sharpening.