AF Removals Posted March 14, 2013 Share Posted March 14, 2013 The mph on the sat nav or the speedo ? Link to comment Share on other sites More sharing options...
MrSmith Posted March 14, 2013 Share Posted March 14, 2013 (edited) The mph on the sat nav or the speedo ? On a flat, straight road under a clear sky with three or more satellites visible, the sat-nav will be 100 per cent accurate. But on hills, twisty roads, in towns with tall buildings or in tunnels, it will simply guesstimate your speed. All car speedometers over-read by a small margin. Edited March 14, 2013 by MrSmith Link to comment Share on other sites More sharing options...
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