[Talk-GB] Very accurate GPS devices

[Matthew Gates]

Further to Ed's post, are there really GPS devices with one inch accuracy?

I could imagine letting a device sit for some time, and then averaging the 
position, which might lead to increased accuracy at the cost of 
long "exposure" time...  is that method used for surveying and so on?


Matthew
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.openstreetmap.org/pipermail/talk-gb/attachments/20080829/238109f1/attachment-0001.pgp>