ADS-B, or Automatic Dependent Surveillance-Broadcast, is a new technology that allows air traffic controllers to see traffic with more precision than ever before. Instead of relying on decades-old radar technology, ADS-B uses highly accurate GPS signals. As a result, ADS-B works where radar often doesn’t — even in remote areas or mountainous terrain. And because it can function at low altitudes and on the ground, it can also be used to monitor traffic on airport taxiways and runways. Air traffic controllers aren’t the only ones who will see the benefits of ADS-B, though. Aircraft with certain equipment can also receive ADS-B traffic and subscription-free weather information while in flight over the U.S.
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