Why is the distance that GPS Tracker calculates shorter than what the trail guide says?
That’s partly due to the way the GPS unit calculates the distance of a track. A GPS track consists of a series of points and the calculated distance of that track is the straight line distance between the points. In a trail that has lots of twists and turns the points are going to occasionally “shortcut” part of a curve and so the calcuated distance can be shorter than the actual trail. I think it also has something to do with the way I cut up the GPS tracks into segments. I might be loosing a little bit of the distance each time I cut the track. In spite of that I think the distance that you get from GPS Tracker is pretty close to the distance you would get if you collected track with a GPS unit, and that distance is going to be pretty close to the actual distance of the trail. top 4) Question: When I create a loop track, the total climb is not equal to the total descent. Why is that? Of the three dimensions that a GPS unit measures (latitude, longitude, and elevation), elevation if b
