Question that I thought the 41-gurus might be able to help with on my recently acquired Edge 800. I've included a few snapshots of the elevation profile from Garmin Connect, and I can't help but notice that, not too consistently but often enough to make me wonder/worry, there's a drop off in elevation over the course of the ride. As you can see, some rides (and they all start and end at the same spot) end up over 150 ft below where I started, but some rides, there's barely a difference. I understand the elevation sensor works via barometric pressure, so I pegged the first one as the storm rolling in, but today's ride (the bottom one) was perfectly calm in NYC, no rising pressure that I know of, and yet it think I ended up about 150 feet below sea level.

I've done some basic rooting through the garmin forums, and the only issues reported with elevation were fixed with a software update that my unit already has. Maybe someone knows a fix, or did I get a lemon and I should talk to Garmin's support?

(chronologically top to bottom)


p.s. minus this one hiccup, I'm loving this thing. And Garmin Connect is awesome, it's doing everything and more that I was copying over into an excel spreadsheet off my bonty node. Definitely an upgrade worth making.


edit: and elevation corrections on or off doesn't change anything, which, as I understand it, is normal since it's a function intended for the barometric-free models