On Tue, 11 Aug 2009, Apollinaris Schoell wrote: > compared to a SiRF III powered the eTrex is pretty lame in accuracy. > but it uses less power and runs twice as long on a set of batteries ok, so I'm in the rich guys list. I have an older etrex, the MSO has the newer etrex with the more accurate chip http://en.wikipedia.org/wiki/SiRFstar_III i also have a Neo Freerunner, which is more accurate with the Antaris 4 chip and we have been obtaining dataloggers with much newer chips and greater accuracy than any of those chips, where I have been able to see my trace down each side of the road distinctly on an outward and return journey These have been based on Mediatek MTK chips
I have tried the photoMate i-887 inside a shopping cnetre building and think i can get enough traces to map inside that building, but not the carpark below. http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=67511 http://www.gpspassion.com/fr/articles.asp?id=175&page=5 motto try to get the newest sort of chip to track places with very poor signal _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
