Are you ready?
Starting January 1, 2020, you must be equipped with ADS-B Out to fly in most controlled airspace. Federal Regulations 14 CFR 91.225 and 14 CFR 91.227 contain the details.
Quite simply, Automatic Dependent Surveillance–Broadcast (ADS-B) is a precise satellite-based surveillance system.
ADS-B Out uses GPS technology to determine an aircraft's location, airspeed and other data, and broadcasts that information to a network of ground stations, which relays the data to air traffic control displays and to nearby aircraft equipped to receive the data via ADS-B In.
Operators of aircraft equipped with ADS-B In can receive weather and traffic position information delivered directly to the cockpit.
Info taken directly from the FAA website at: https://www.faa.gov/nextgen/programs/adsb/
The most immediate benefits of ADS-B in/out technology include:
1. Improved situational awareness
2. Enhanced traffic information
3. Improved weather data
4. Improved collision avoidance information
5. Overall enhancement to flying safety
6. Numerous free services via the Universal Access Transceiver (UAT)*.
Do you still have questions? Go to: http://www.faa.gov/nextgen/equipadsb/faq/
*ADS-B Flight Information Services-Broadcast (FIS-B) weather and flight information service is only available to UAT-equipped aircraft.
All larger commercial and business aircraft that operate at higher altitudes are required to have a Mode-S transponder operating on a 1090 MHz frequency with extended squitter.
ADS-B In systems receive FIS-B weather and data services only on the 978 MHz frequency. Please note that UAT is only permissible as the sole ADS-B equipment up to 18,000 feet.