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How It Works: ADS-B

Gemini Sparkle

Key Takeaways:

  • Automatic Dependent Surveillance-Broadcast (ADS-B) is a GPS-based system replacing traditional radar for air traffic control, offering significantly more accurate and frequent aircraft tracking.
  • Aircraft transmit precise GPS-derived position, speed, identification, and flight status data to ground stations and other aircraft, updating every second compared to radar's 5-12 second scans.
  • This enhanced data allows air traffic control to reduce aircraft separation and implement more efficient routing, while also improving pilots' situational awareness through direct traffic and weather information sharing.
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Automatic dependent surveillance-broadcast is a GPS-based system meant to replace the traditional radar-based technology ATC has relied on for decades to detect and manage aircraft traffic.

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