Not all of the US military’s Global Positioning System receivers have been functioning properly after the recent upgrade of the Global Positioning System command and control software, Gen. Robert Kehler, Air Force Space Command boss, told reporters Feb. 18 at AFA’s Air Warfare Symposium in Orlando, Fla. “It is not a problem with the command and control software, nor is it a problem with the navigation signal from the satellite. This is a receiver problem,” explained Kehler. He said the issue has been “isolated to a set of receivers,” meaning only “handfuls” are affected as opposed to large numbers. And, he said, “We have a fix; we know what the problem is.”
Defense experts say the drone threat represents only part of a larger, looming problem: U.S. air bases in the Pacific are increasingly vulnerable to air attacks.