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A more general case is a radar [[transponder]], used in civilian [[air traffic control]] (ATC), which transmits the identifier of an aircraft, and usually its alt

Air traffic control and distributed systems such as the Traffic Alert and Collision Avoidance S

...ith disaster spurred new regulations for ship-to-ship radio, and a kind of air traffic control system for the Mississippi, that have prevented future tragedies.

...roper interrogation. Transponders aboard airplanes are the basis of modern air traffic control (ATC); it is incorrect to assume that ATC tracks aircraft by radar alone. Originally, military and civilian air traffic control were totally separate. There has been an initiative, however, to enable mil

...r", but relies principally on transponders to track and identify aircraft. Air traffic control radar, as opposed to a military air search radar such as the AN/MPQ-64, is

...peninsula and the coast of southern [[Vietnam]], at the time contact with air traffic control was lost.<ref>{{cite news|date=19 March 2014|title=Missing Malaysia plane:

...e Harder") sees McClaine having to take on mercenaries who take control of air traffic control and communication at Dulles airport.

...system for improving maritime safety, applying many of the principles of [[air traffic control]] to the sea. AIS equipment automatically transmits information on its own Air traffic control principally depends not on [[radar]] or voice contact, but on automated [[t

...in cellular telephony or a shared electromagnetic spectrum for tactical or air traffic control communications. The resource reserved may be a frequency, a time slot withi

{{r|Air Traffic Control}}

}}</ref> to air traffic control . The Stores Management System provides a system for the electronic control

...raft, because using one main type could standardize [[radar]] tracking and air traffic control, as well as loading and unloading.

...S), which is a continuously operating transponder system much as used in [[air traffic control]]. AIS, like another aviation system, also allows vessels to detect potenti

...1944-45 because of the growth of its infrastructure that included a robust air traffic control system, innovative maintenance procedures, dozens of navigation aid-equippe

...eive a pilot’s licence. Planes would need certificates of airworthiness. [[Air traffic control]] rules were introduced. ...e Civil Aeronautics Act of 1938, which standardized procedures between the air traffic control centers, which dealt solely with planes crossing a certain airspace, and th

...security, while the new pilots turned off the [[transponder]]s needed for air traffic control, and flew the planes, each loaded with over 20,000 gallons of fuel, toward ...ng been shut down when Soviet bombers were no longer a significant threat; air traffic control uses transponders, not [[radar]] reflections. There was no simple way to fi

Outside specific programs such as designated military or air traffic control networks, the U.S. government is an "unfunded mandate". In 2003, however, t

...uge [[infrared]] signature when cruising at Mach 3+). It was visible on [[air traffic control]] radar for hundreds of miles, even when not using its [[Transponder#Aviati

...s airfield, but it was usable by military pilots with appropriate tactical air traffic control.