The term Plane Tracker is a job that involves the use of RADAR technology. RADAR stands for Radio Detection and Ranging and is a system used to detect objects and measure their distance and speed. RADAR is used in many applications, including air traffic control, navigation, and military operations. The term Plane Tracker refers to someone who uses RADAR to track planes in the air. This person is responsible for monitoring the location and movement of aircraft, as well as providing information to pilots and air traffic controllers.