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"Gord Beaman" <gord@islandtelecom.com> wrote in message
news:i459r1td0m9e5kkv6b67h4go9bh9kb1lve@4ax.com...[color=blue]
> "Ray O" <rokigawa@tristarassociatesDOT.com> wrote:
>[color=green]
>>
>>"Gord Beaman" <gord@islandtelecom.com> wrote in message
>>news:jdk8r1dvp0fho2m04ejsnskugaaa827uj8@4ax.com...[color=darkred]
>>> "B. Peg" <bent_peg@worldnet.att.net> wrote:
>>>
>>>>> How can you check if the speedometer is not properly calibrated and if
>>>>> I
>>>>> ask a mechanic to do it how much should it cost?
>>>>
>>>>If you belong to the Auto Club, they have a roving speedometer check
>>>>vehicle. They post its location in their magazine, which is usually at
>>>>one
>>>>of their local offices. I believe it is a free check.
>>>>
>>>>The GPS idea is also good.
>>>>
>>>>B~
>>>>
>>>"
>>> But how accurate is the GPS?...I have a Magellan Meridan
>>> Gold...not very expensive (or is expense a factor?)
>>> --
>>>
>>> -Gord.
>>> (use gordon in email)[/color]
>>
>>If the GPS is WAAS enabled, then it is probably accurate to within 10 or
>>12
>>feet. Without WAAS, it is probably within 30 feet.[/color]
>
> It claims to be, and it claims 'accurate to within 3 meters' so
> perhaps it it...but that means the 'speed' is accurate does
> it?...(Yes I suppose it does) :)
> --
>
> -Gord.
> (use gordon in email)[/color]

"Accurate to within 3 meters" is about 9 or 10 feet. I assume that the
clock function on the GPS is also pretty accurate so the distance/speed
equation should be pretty accurate.
--
Ray O
correct the return address punctuation to reply