I am receiving traffic data miles away from other aircraft. It is not triggered data meant for another aircraft. I have a Rasberry Pi set up to receive 978 UAT. Program is called STRATUX. The Pi rebroadcasts on wifi to my iPad and ForeFlight software.

FAA openly broadcasts TIS-B data on UAT, they opened it up this fall. From what I understand.

I was at 6500MSL over Searchlight NV and receiving traffic data in the Las Vegas Valley, 30 miles away. All I needed was line of sight to Black Mt., where the FAA ground station is located.