Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/838886'></iframe> Download Embed Share Operations Specialist "A" School Naval Education and Training Command April 12, 2022 | 2:38 The Radarman rating, first established in 1943, was disestablished in 1971 with the responsibilities delved out to the Electronic Technician, and the newly established, Operations Specialist and Electronic Warfare Technician ratings.Operations Specialists operate radar, navigation, and communications equipment in combat information centers on the ship's bridge. They detect and track ships, aircraft, and missiles.Operations Specialist class "A" school is 10 weeks long, and the school is located in Great Lakes, Illinois. The OS rating requires a 60 month (5 year) service obligation.