Quote:
Originally Posted by Old Mechanic
Does this mean GPS readings do not show elevation changes that would affect distance travelled, something I had wondered about.
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I believe this is the case. In the real world most trips are A-B-A so it will usually average out. Even my super expensive 'high accuracy' $700 GPS doesn't do elevations very well.
On the other hand, if the elevation is 200m out, it's a lot if you're measuring elevation, but not really much when you're measuring a road trip distance.
This can be tested by comparing speedo error going up hill vs down. You'd need a SG or other digital read out to compare the GPS to.