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Can't see the truck drivers making that big a mistake!...
Wot about a speed boat driver...
"...Alan Grant of the General Lighthouse Authorities carried out an experiment in 2008 to assess the degree to which ships would be affected by a jamming signal. Using a relatively low-power jamming signal off the eastern English coast, he found that ships coming into the jamming area suddenly read locations anywhere from Ireland to Scandinavia..."
BBC News - Sat-nav systems under growing threat from 'jammers'
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