The AN/APQ-180 is an enhanced version of the proven APG-70 radar.
The APQ-180 radar is used on the AC-130U Specter gunship. It is a modification of the APG-70 radar and has fixed target track, ground moving target indication and track, projectile impact point position, beacon track, and a weather mode. The existing APG-70 antenna and analog signal processors were modified and added to complete the APQ-180 system.
The AC-130U Specter gunship is an air-to-ground platform equipped with a 105mm howitzer and 25mm and 40mm cannons. It is operated by the U.S. Special Operations Forces.