More SAT-NAV questions
 

Which is likely to be more accurate, the car/bike speedo or the speed displayed on the sat-nav ?

Re: More SAT-NAV questions
 

The one the copper gives you when you pass him at over a ton! :wink: :lol:

Well GPS tends to be more accurate though this is in a straight line as it will mesure the distance taken to get from on poll, to the next poll. Should be better then your speedo as they tend to be +/-10% out. So long as there are not loads of twistys you should be fine with the sat nav.
140-10%=126mph (yes I've gone that fast)

Having just googled it I would think the SAT-NAV providing.

Travelling in a straight line on level ground, maintaining constant velocity for a few seconds.

Satnav seems to be, although how does any know :?

Hmmmm........anyway its accepted to be from what Ive read.