TIL: GPS satellites don't ever actually interact with GPS devices at all. 31 US satellites simply broadcast their position non-stop and GPS devices triangulate their own position using the locatio... (spaceplace.nasa.gov)

submitted 2 days ago by [email protected] to c/[email protected]

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The original was posted on /r/todayilearned by /u/manamonggamers on 2025-06-14 03:25:16+00:00.

Original Title: TIL: GPS satellites don't ever actually interact with GPS devices at all. 31 US satellites simply broadcast their position non-stop and GPS devices triangulate their own position using the location of 3 "nearby" satellites.

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[-] [email protected] 1 points 2 days ago

Yep. It would take a lot of energy and a decent antenna to send something back to the satellite, which isn't necessary in the first place

this post was submitted on 14 Jun 2025

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