incorrect elevation

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    Raymond de Jager

    The elapsed time is way off too. Unless the last 8 km took you an hour.

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    JK PSK

    eagle eye! had a coffee break before finished the last 8km and too on previous ride with Garmin. 

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    Raymond de Jager

    😂😂😂

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    Steve Hammatt

    I had the opposite problem today. My Karoo was drastically under-reporting my elevation climbed.

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    Raymond de Jager

    I also have the opposite problem but the Karoo seems to be correct. After upload to strava the elevation has quadrupled.

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    Roger Debreceny

    Riding next to the seashore, my elevation showed as -117'

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    Luis Weber

    Barometric elevation from Karoo seems not to be supported by Strava yet (Karoo is not registered as a barometric device at Strava). So Strava calculates elevation from GPS data. I sent a ticket to Strava kindly asking to register Karoo to their database of GPS devices with barometric sensor.

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    Seth Challenger

    Altimeter works (extremely accurate,) code to calculate ascent absolutely does not. I can watch the "Current Elevation" climb exactly 200ft, and the reported ascent will be like 12ft. End of ride reported ascent is averaging about 1/3 of actual. 

    But I can absolutely confirm that the barometric altimeter is working. 

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    Niels Henningsen

    A little comment on the Current Elevation data field in metrics, please just show in meters   ex 342 meters and not 342,3 meters..

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    Brian Harris

    I've seen my Karoo typically under-report evevation gain by 1/2 to 2/3.  

    Took it skiing for a day at Snowbird Saturday.  Here are some numbers:

    Karoo Device in ride 'Ascent' field: 2300m

    Karoo Activity Summary page: 7548m

    Karoo track uploaded to Strava: 6964m

    Garmin: 6601m

    Based on the lift vertical rise data from the trail map, the correct number is 6743m.  It's very odd how the ascent field is SO far off the others.  Even the activity summary knows it was way more than 2300m.  This has been my experience with cycling too (I just haven't had a large climbs yet to try it out - still winter here...)

    Beta indeed.  But the screen sure is pretty!

     

    I've normally had good luck with the 'current elevation' field though.  That is until this morning - it was quite a bit off on my commute this morning.  But normally its been pretty spot on.  

     

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    Steve Hammatt

    The general consensus does seem to be that the elevation figure is very good, but the climbed figure is way off. But I'm not too surprised, given what Laurence said about it on the livestream (see separate post for a write-up on that).

    In the livestream Laurence did stress that the climbing data was very much beta at the moment, and he implied that they expected to have to tweak it. He referred to the climbing data being very spiky. Now I don't know how this works, but I can well imagine that it would be tricky, due to the data from the barometer and the GPS data fluctuating slightly. So if it varies just one or two feet up and down when you're on the flat, they don't want to report that you've climbed, so they need to smooth that out. To me it sounds like they probably just have too agressive a smooting algorithm at the moment. Hopefully that will greatly improve before too long.

    EDIT - I just saw in another post that Laurence has said "Barometers are particularly interesting to dial in but let's just say that the shape of our curves are looking ok and that we are now removing the noise and ensuring the aggregate and live fields are accurate. "

     

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