Garmin 405 Accuracy
I did some intervals tonight, 6*1200.
I often hear people complain about the accuracy of a race course, thinking their Garmin is 100% accurate. Take a look at this photo, I had a great signal, generally it was within 16ft. I can assure you that I ran all three laps in lane one, however the Garmin has me going into the grass and out into lane 7 in one lap.
Still, it’s rather remarkable, but proof that the Garmin is not 100% accurate.
What did your elevation graph look like? I tend to assume the distance is pretty much accurate but have never been sure about the elevation. In fact one race it had a huge spike in elevation and I don’t remember any hill at the point it indicated.
It had a few spikes, showing a few changes that were +/- 15 feet, I assume the track is flat!
I’d say that is the biggest area that can improve with Garmin GPS is the elevation tracking.
Much to the dismay of athletes world-wide, the elevation computed by commercial (non-military) GPS systems will never be accurate. Quick research, taking into account a military aspect, will explain why this is so…