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A comment on Learning from Turing’s silver hoard (2016). Parent comment

Re:Learning from Turing’s silver hoard (2016) by ChrisLomont on Tuesday February 18, 2020 @04:03PM (#22360385)
Real-time Kinematic GPS (RTK-GPS) [1], available from Sparkfun for $200 [2] (and cheaper elsewhere), gets you centimeter accurate positioning in the US and most other countries.

[1] https://en.wikipedia.org/wiki/Real-time_kinematic

[2] https://learn.sparkfun.com/tutorials/what-is-gps-rtk/all

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