tomtom mph

  polish 17:49 02 Nov 2006
Locked

i no already that the speedo on cars arent 100% accurate but was wondering how accurate the tomtom speed is there is a difference of between 3/4 mph

  sunny staines 19:06 02 Nov 2006

cars are allowed 11% out before they become illeagle. thats why the speed camera cannot go lower than ten per cent over the limit.
my tomtom is 3/4 % out too.

  Chris the Ancient 19:14 02 Nov 2006

Sat Navs should be accurate all the time as the accuracy of the GPS is very fine.

However, there is often a lag in accuracy if your speed is changing as the software needs 3-4 seconds to recalculate - hence, at times, you may feel that you have lost accuracy.

If your speed is dead constant, your GPS spped reading should be dead accurate.

  yaesu 20:04 02 Nov 2006

Hi, you also need to be on level terrain as going up or downhill will affect the readings from SatNav. regards, yaesu

  Mikè 20:55 02 Nov 2006

"If your speed is dead constant, your GPS speed reading should be dead accurate"

Providing your not on a steep hill!

  Mikè 20:56 02 Nov 2006

I must hit refresh more often!

  polish 21:36 02 Nov 2006

thanks for replys

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