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World's first GPS-free quantum navigation trial succeeds at sea
(interestingengineering.com)
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this post was submitted on 29 Aug 2026
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Yes and no. They often use GPS assisted by beacons. Those beacons are often set up using both high quality GPS but also surveying tools, and you might have seen markers in the ground on cities which was placed using very well calibrated tools so it has a well known very precise precision. Those beacons are easier to track for other machinery because they are so much closer so the radio signal is much clearer and angular precision is much better