Calibrating the GO 620 Speed

Jloupjloup

Hi everybody,

I'm trying to find out if we can calibrate the real speed displayed on my GO 620. I've noticed that there is a difference of 5 km / h (Metric System) below that displayed by my car ?

Thank you

YamFazMan

Hi
@Jloupjloup

See... Wikipedia Speedometer....
Here... https://en.wikipedia.org/wiki/Speedometer

ATB YFM

tonygr

All car speedos will read high. One reason is to ensure that manufacturing tolerances don't lead to a unit reading low and leaving the driver inadvertently breaking the speed limit.

Lochfrass

tonygr is right.
You can also check it with a smartphone app

YamFazMan

Hi
@Jloupjloup

See... Wikipedia Speedometer....
Here... https://en.wikipedia.org/wiki/Speedometer

ATB YFM

Jloupjloup

So should I consider the speed indicated by my GPS as the right and accurate one, because it is calculated via satellite information vs map position, exact ?

Thanks,
jloup

big

Yes, the speed calculated by the GPS will be much more accurate than the speedometer in your vehicle.

jatco

big wrote: »

Yes, the speed calculated by the GPS will be much more accurate than the speedometer in your vehicle.

I wonder if the police officer who pulls you over for speeding will buy that..when you tell him your GPS showed that you wasn't speeding..?!? Doub't it

YamFazMan

Hi
@jatco

As police patrol cars have calibrated speedometers they would see the same speed as your GPS....

ATB YFM

jatco

Didn't know about it or think about it until I saw the op question. Now I know I have some leeway...haha!
Thx YFM