Features January 2015 Issue
TIS-B: The ADS-B Bridge
ADS-B is the FAA's vision of the future. It gives us weather and traffic information, but until we're all on the same page, something has to tie the disparate traffic systems together.
The great promise of ADS-B is that it will eventually offer free traffic and weather services for those pilots willing to pay for the equipment and displays. But until everyone has ADS-B Out—required by 2020—a technology called TIS-B (Traffic Information Services-Broadcast) will fill the trafffic gap, allowing you to see everything ATC sees within a reasonable range of a radar site, presuming you and the radar site are suitably equipped. Let’s explore how TIS-B works and how it fits into the current state of ADS-B.