ADS-B
March 6 Aviation Week is a small article on ADS-B. I quote
The FAA is developing its plan for rolling out Automatic
Dependent Surveillance - Broadcast (ADS-B) nationwide over the next 20 years
and the agency's Joint Resources Council is expected to review it for an
investment decision this summer. FAA officials briefed members of the RTCA's
Air Traffic Management Advisory Committee on the four-phase plan on Feb. 24.
The first phase would focus on "ADS-B out" or the transmission of
aircraft GPS positions to air traffic controllers on the ground. In the second
phase, a final "ADS-B out" rule would be published as deployment
continues with 40% of the avionics installations occurring by 2014. The third
phase in 2015 - 2020 would include the retirement of some ground-based radars
used for surveillance and initial implementation of "ADS-B in" - the
reception and display in the cockpit of the position of other aircraft nearby.
The final phase from 2020 - 2025 would see completion of the ADS-B system
deployment and avionics installations.