• Auli@lemmy.ca
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    4 days ago

    You know GPS isn’t survaluence it is just a one way very slow signal.

    • Zerush@lemmy.mlOP
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      4 days ago

      Yes, this what the people think, a Smartphone is always locatable ⨦50m, except you switch it off

        • Zerush@lemmy.mlOP
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          4 days ago

          No, but anyway it’s not correct that GPS function only works in one direction- without GPS, location is made with triangulation fron Cell Towers, which give an aprox locatiob. With GPS on they can find you with a precision of few meters. Not possible if GPS works only in one direction and also not slow, if not, an navigation app wouldn’t work.

          • dev_null@lemmy.ml
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            24 hours ago

            No, but anyway it’s not correct that GPS function only works in one direction

            GPS works in one direction. GPS satellites send one-way GPS signals, they receive no information back from your phone.

            With GPS on they can find you with a precision of few meters

            Yes, very likely.

            Not possible if GPS works only in one direction

            Absolutely possible. For example Android phones can, and in most cases do, send your location (that your phones figures out from GPS signals) to Google, with your internet connection, either Wi-Fi or cellular data. GPS signals don’t need to be bidirectional for that to happen.