What is ADS-B in avionics?
ADS–B is a performance–based surveillance technology that is more precise than radar and consists of two different services: ADS–B Out and ADS–B In. ADS-B Out works by broadcasting information about an aircraft’s GPS location, altitude, ground speed and other data to ground stations and other aircraft, once per second. 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.Our satellite-based receivers enable us to capture data, via ADS-B signals, in remote areas that terrestrial data services cannot, such as large bodies of water or mountain ranges. This means we can provide more complete global coverage, 24/7.If your ADS-B fails in flight, you can continue to your destination, and ATC will coordinate with any subsequent ATC facilities along the remaining route of flight.
What are the two types of ADS-B?
Within the United States, the ADS-B system has the ability to provide air traffic and government-generated graphical weather information at no cost through TIS-B and FIS-B applications. ADS-B consists of two distinct functions – ADS-B Out and ADS-B In.ADS-B In gives pilots access to Traffic Information Service–Broadcast ( TIS-B ), which provides altitude, ground track, speed and distance of aircraft flying in radar contact with controllers, and within a 15-nautical mile radius, up to 3,500 feet above or below the receiving aircraft’s position.Automatic Dependent Surveillance–Broadcast (ADS-B) is an aviation surveillance technology and form of electronic conspicuity in which an aircraft determines its position via satellite navigation or other sensors and periodically broadcasts its position and other related data, enabling it to be tracked.
Who is required to use ADS-B?
These rules require all aircraft to have ADS-B Out equipment when flying in Class A, B, and C airspace, as well as Class E airspace above 10,000 feet (excluding airspace below 2,500 feet).Current transponders enable ATC and other aircraft to know your aircraft’s relative position and altitude. ADS-B adds important information to help project and prevent traffic conflicts by estimating intent, explained Jake Biggs, Textron Aviation’s aftermarket engineering manager.