Shanghai – The Map Room https://www.maproomblog.com Blogging about maps since 2003 Mon, 18 Nov 2019 15:13:07 +0000 en-US hourly 1 https://www.maproomblog.com/xq/wp-content/uploads/2017/04/cropped-logo-2017-04-32x32.jpg Shanghai – The Map Room https://www.maproomblog.com 32 32 116787204 A GPS Spoofing Mystery in Shanghai https://www.maproomblog.com/2019/11/a-gps-spoofing-mystery-in-shanghai/ Mon, 18 Nov 2019 15:13:07 +0000 https://www.maproomblog.com/?p=1788065 More]]> Someone is spoofing GPS signals in Shanghai, and we’re not entirely sure why they’re doing it, or how. One ostensibly bizarre theory: sand thieves trying to obfuscate illegal dredging by zonking out the GPS received by other ships’ AIS transponders. But how they’re redesignating ship (and bicycle) GPS locations into riverside circles, rather than, say, shifting everyone’s position a few kilometres away, has not yet been figured out. [MetaFilter]

Previously: The Russians Are Spoofing! The Russians Are Spoofing!

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