Hi List, I just installed TTTracklog on my TTOne, and it works like a charm :) I'm planning to use it as a paragliding flight recorder.
I know that TT is made to work on the streets, and altitude data may be inaccurate, but I'd like to give it a spin up in the air.
What I found is that there is no setting to fix the altitude according to the geoid correction[1], so my "trial flight" (fake, by foot) went all about 40 m over the real altitude.
I don't think to a system that calculates the correction basing on the GPS coords, it would be too much work for the tiny TT processor. I think a custom fixed value (maybe in the wrapper) to be added or subtracted from the NMEA altitude could be enough for the use.
Ulisse [1] http://en.wikipedia.org/wiki/Latitude#Corrections_for_altitude -- -- When There Are No Walls, You Need No Windows -- Linux user #393784 -- http://counter.li.org/ my blog - http://ulisse.wordpress.com
