Airport radar provides information to air traffic controllers
on aircraft in the local air space. Airport radar systems include:
Primary radar, which uses signals scattered off the
bodies of aircraft to obtain information on their location and
Secondary radar, or secondary surveillance radar, which relies on interrogation
of transponders carried by aircraft.
Because secondary surveillance radar uses a
transmitter on board each aircraft, it usually has a much
longer range than primary radar and can usually give a
more accurate indication of an aircraft's altitude.
Other topics in our resources on Radar related to Airport Radar include: