[OSM-talk] High-Precision GPS Survey Equipment?

[Jeffrey Martin]

On Tue, Aug 26, 2008 at 6:33 PM, Tim Waters (chippy)
<chippy2005 at gmail.com> wrote:
> On 8/25/08, simon at mungewell.org <simon at mungewell.org> wrote:
>> Hi all,
>>  Just to give a hint at what is possible, the company I work for flagship
>>  receiver (L1/L2 dual frequency) can achieve sub-cm accuracy for static
>>  observations when tied into a nearby reference station (or other
>>  receiver).
>
> Anyone know if the very high accuracy receivers can maintain their
> accuracy whilst on the move, in a car for example, or whether you'd
> need to be static or do "frog-jumps" from point to point?
>
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Here's how John Deere does it. I don't think it will do any good
for interference from buildings though.

http://en.wikipedia.org/wiki/StarFire_(navigation_system)