Thursday, July 16, 2009

GPS accuracy

The GPS system has an accuracy of ±15m guaranteed when using no augmentation like SBAS (WAAS in the USA). Often it performs better than that or maybe I should say in most cases it performs better than that. So when you set your system on your boat on autopilot and the route you entered were coordinates of waterway markers, then it would be a good idea not to go under deck to make a sandwich or even worse to play around with your girlfriend. Because you may encounter some nasty surprises. The navigation system might perform better than you think...

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