What is the primary function of Airport Surveillance Radar (ASR)?

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Study for the Pilot's Handbook of Aeronautical Knowledge Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

What is the primary function of Airport Surveillance Radar (ASR)?

Explanation:
Airport Surveillance Radar provides a real-time picture of air traffic in the terminal area. It is a ground-based radar system that detects aircraft (often via their transponders) and displays their positions on ATC radar screens, giving range and bearing so controllers can maintain safe separation and sequence arrivals and departures. This helps manage the flow of traffic near the airport and coordinate with tower or approach control. It is not used to relay weather information to pilots, nor to control an aircraft’s autopilot, nor to coordinate ground vehicle movements around the airfield.

Airport Surveillance Radar provides a real-time picture of air traffic in the terminal area. It is a ground-based radar system that detects aircraft (often via their transponders) and displays their positions on ATC radar screens, giving range and bearing so controllers can maintain safe separation and sequence arrivals and departures. This helps manage the flow of traffic near the airport and coordinate with tower or approach control. It is not used to relay weather information to pilots, nor to control an aircraft’s autopilot, nor to coordinate ground vehicle movements around the airfield.

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