Today I Learned (TIL)

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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 3 months ago by bot@lemmit.online to c/todayilearned@lemmit.online

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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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[–] Allero@lemmy.today 1 points 3 months 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