Today I just walked a 16km track on Schneeberg / Austria, Overall time 6.7 hours, with 1.20 hours of pause during which I mostly switched of the unit.
Under clear sky, while walking down a large and wide, 30-45° steep chute (Schneidergraben), my Vista HCX lost the signal very badly. Then again in the forest below. At least 5% of the tracklog are empty or useless (in distance of total travel).
Tweaking the GPS track till it's usable for trackback took about 30 minutes (using a topo map (Amap) and GPS Track Analysis.net) deleting more than 300 out of 2000 points. BTW is there any tool to automatically delete all gps points inbetween the speed is higher than a certain speed?
Before tweaking instead of 1320 meters altitude made good it showed around 2400 m. Quite a big difference and useless for amalysing your fitness level etc....
P.S track was Losenheim-Fadensteig-Fischerhütte-Klosterwappen-Damböckhaus-Schneidergraben-Nördlicher Grafensteig, Losenheim. Is there a simple solution for linking GPX files and putting them on here - uploading with description to gps-tour.info simply seems too long.