[ gpsdrive ] GPS with more precision.

Roland Orre roland.orre at gmail.com
Thu May 20 04:57:46 AKDT 2010


Here is one that goes down to the merely theoretical limit of 1 cm
http://www.cmtinc.com/fieldcmp/hpgpsl4.html

but the price tag huh!  7000 USD

On Thu, May 20, 2010 at 10:05, Hamish <hamish_b at yahoo.com> wrote:
> Marc wrote:
>> If they say "a gps can only have 3 meter accuracy",
>>
>> but then , they come with some gps, that has 3cm accurracy,
>> howdy??
>
>
> provide real-time or post-processed corrections from a nearby
> surveyed position via a VHF signal, etc.
>
> http://en.wikipedia.org/wiki/Real_Time_Kinematic
>
>
>
> Hamish
>
>
>
>
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