GPS LINKS

GPSPASSION has a forum with useful postings

Lots of links useful for equipment fror DGPS

overview by a trail runner

phil lowry

Map point track accuracy

surveyors summary of accuracy

A GPS User Manual: Working with Garmin Receivers By: Dale DePriest

David Wilson Pages -GPS Accuracy - formulae and some data

http://gpsinformation.net/ long list of info links -- also reviews etc

http://freegeographytools.com/2007/exporting-data-from-google-earth-to-a-gps-unit

gps choice for runners FETCH Garmin, Navman, iPod+, Timex, Polar, Oregon Scientific, pedometers and beyond...