ggrieves t1_j5qqi4n wrote on January 24, 2023 at 10:16 PM

Reply to comment by apeowl in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

GPS, as I understand it, was intentionally throttled because of concern it could be used to guide a weapon. But technology has improved so much since then that GPS isn't the limitation any more.

seamustheseagull t1_j5txdsg wrote on January 25, 2023 at 3:27 PM

Nevertheless, I believe GPS devices sold in the US are still required to shut off above a certain speed/altitude, much to the annoyance of amateur rocket/balloon people.