Calibrating the GO 620 Speed — TomTom Community

GO WiFi -PREMIUM/ ESSENTIAL/ BASIC/ CAMPER/ PROFESSIONAL/ VIA 53

Calibrating the GO 620 Speed

JloupjloupJloupjloup Posts: 5 [Apprentice Traveler]
in GO WiFi -PREMIUM/ ESSENTIAL/ BASIC/ CAMPER/ PROFESSIONAL/ VIA 53
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
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Answers

  • tonygrtonygr Posts: 53 [Renowned Trailblazer]
    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.
  • LochfrassLochfrass Posts: 14,714
    Superusers
    tonygr is right.
    You can also check it with a smartphone app
  • JloupjloupJloupjloup Posts: 5 [Apprentice Traveler]
    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
  • bigbig Posts: 1,634
    Superuser
    Yes, the speed calculated by the GPS will be much more accurate than the speedometer in your vehicle.
  • jatcojatco Posts: 93 [Outstanding Wayfarer]
    edited February 2020
    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
  • YamFazManYamFazMan Posts: 19,262
    Superusers
    edited February 2020
    Hi
    @jatco

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

    ATB YFM
  • jatcojatco Posts: 93 [Outstanding Wayfarer]
    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
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