F-18 radar upgrade

The F-18 radar upgrade discussed by Lt. Ryan Graves involved transitioning from the older mechanically scanned array radar, the APG-73, to the newer, more capable APG-79 active electronically scanned array radar. This upgrade happened during a maintenance phase after his squadron returned from deployment. After the upgrade, they noticed that the new APG-79 radar could detect objects that the older APG-73 radar did not pick up. This experience, where previously undetected objects appeared on the new radar, highlighted a significant leap in technology and capability provided by the new system 1.