What does ADS-B in do?
ADS-B In provides operators of properly equipped aircraft with weather and traffic position information delivered directly to the cockpit. Here you can find links to ADS-B regulations and guidance, as well as detailed information on the airspace and equipment requirements and capabilities. You must be equipped with ADS-B Out to fly in most controlled airspace. Any airspace that requires the use of a Transponder, described in 14 CFR 91. Version 2 ADS-B Out system.ADS-B Out is only mandatory for aircraft flying within certain airspace. For example, in the US the requirements are as follows: Class A airspace where Instrument Flight Rules (IFR) flights only are permitted. Class B and Class C airspace where IFR and Visual Flight Rules (VFR) flights are permitted.As described in 14 CFR 91. ADS-B Out performance is required to operate in: Class A, B, and C airspace. Above the ceiling and within the lateral boundaries of a Class B or Class C airspace area upward to 10,000 feet MSL .
What’s the difference between ADS-B out and in?
Aircraft equipped with an ADS-B In only receiver are capable of receiving weather and proximate traffic. The most reliable traffic information that would be received is air-to-air via ADS-B . If an aircraft is not ADS-B Out equipped, the ADS-B ground stations will not identify the aircraft as a TIS-B / ADS-R client. Aircraft equipped with ADS-B out enhance the Air Traffic Controller’s awareness of aircraft in the airspace. Radars can take anywhere from 5 to 12 seconds to update an aircraft’s position, but ADS-B equipment provides air traffic control ( ATC ) with updated aircraft information almost every second.