On Saturday, December 19, 2015 at 9:38:51 PM UTC-8, Bill T wrote:
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.

Unfortunately it is next to next to impossible for a user with an ADS-B receiver to work out what is going on, what ground station is transmitting data what for which client(s) aircraft. You at best can tell if a message was ADS-B direct, ADS-R or TIS-B. But you very likely cannot often find details of a client aircraft. And you expect to see some UAT TIS-B and ADS-R data for other client aircraft.

I am not aware of the FAA just retransmitting all this data without a client. Do you have a link to them talkign about doing this? Organizations like AOPA have been asking for that for a while, and getting pushback AFAIK. Retransmitting TIS-B blind seems a horrific bandwidth waste I'm not sure it is doable. The only thing I am aware of is the FAA threatening to clamp down and become more restrictive starting in January 2016 tightening up the requirement that client aircraft have compliant ADS-B Out (well SIL0 type GPS Specs). And there was a separate other change, all really covered here... https://www.faa.gov/nextgen/programs...3-15-webV2.pdf -- but again not what you are describing, but I could see how the description of some of those changes is possible to cause confusion.

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.

Yes but that alone does not prove that there is blind re-transmission on UAT. All it likely means is there was one or more ADS-B or TIS-B UAT client aircraft somewhere near that traffic.

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I am aware of Stratux, it is a very nice little project. I have not had time to play with it on my Pi yet.