ENAVS Part2
{"name":"ENAVS Part2", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"position information should be updated every 4 seconds, developed in the US and originally conceived to give aircrafts more maneuvering capacity, with the support of available new technologies., used for critical messages such as vectoring to avoid traffic and landing clearance at airports with heavy traffic. Serves as back up for data link","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}