[tfandango]

Best source I've found for exactly what this is was reddit, here: https://www.reddit.com/r/ATC/comments/1izjg2m/starlinkverizo... for a system called FENS here: https://www.faa.gov/air_traffic/technology/cinp/fens

[inemesitaffia]

And here's a video https://www.faa.gov/about/office_org/headquarters_offices/an... Starlink is relevant to RTIR.