FAA Issues Advisory for Pilots: Large Military GPS Jamming Exercise in Southeast. The U.S. Federal Aviation Administration (FAA) has issued a flight advisory for January 16-24 warning civilian and commercial pilots that, “GPS testing is scheduled as follows and may result in unreliable or unavailable GPS signal.” The notice is issued under the authority of … Continue reading U.S. Navy Now Jamming GPS Over Six States and 125,000 Square Miles.