Elevation issue - any updates??

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    Marek Domiter

    do you have only elevation gain issue or also absolute elevation is off? for example ok elevation on start, but drifted on the hill, while OK back on the start?

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    Felix Pruemmer

    Lately it is drifting all over the place, yes. Regardless of SIM card.

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    Petr Sedlacek

    Just another data point - on a short and flat 30 km ride in the woods with the kids my Karoo 2 recorded over 3000 m of altitude gain... The GPS is probably very poorly filtered in the "Z" axis. Shame.

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    Ales Havlik

    Same here. I also noticed that the absolute elevation goes to zero quite often, which might be causing the massive ascent value. I've been using Karoo 2 for the last 3 years and always had slightly bigger ascent values compared to Strava / Garmin watch (by couple of percent). But this season it can get off by thousands of meters even on a shot flat ride. I've had a sim card in since I bought it, shall I try to remove it? Can it have an impact?

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    Petr Sedlacek

    I forgot to add - I never used a SIM in my Karoo 2... But it would be interesting to see if you observe any improvement without the SIM.

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    Marco Gasparrini

    Just received my Karoo 2 coming from an edge 500. I did notice that the elevation was 3x greater on the Karoo compared to garmin for the exact same ride. Had to use Strava elevation correction. Without it, estimated power and calories would have also been affected. I’m not using a SIM card. I will try manual elevation set and see how it works next time. Grade also seems very sensitive to a point it’s almost useless. Just hitting a pothole affects the grade.

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    Alejandro Alvarez

    I have exactly the same problen on my karoo 2. I have to removed the SIM card if i want to have the correct elevation values on my routes... If I want to have the correct elevation data, I can't install the SIM card, which means that my family doesn't know where I am since I can't use the tracking option...

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    Felix Pruemmer

    Just received my Karoo 2 coming from an edge 500. I did notice that the elevation was 3x greater on the Karoo compared to garmin for the exact same ride. 

    I can't believe they are still selling new units with that problem. That is on the borderline of fraud, because this issue has been known for a long while what support has confirmed to me in writing. Despite that they continue selling faulty units. This is not some minor bug, but elevation is an important metric. If that was about a product like the iPhone, Hammerhead would find itself drowned in class action lawsuits.

    If the barometric altimeter is hopelessly screwed, why don't they switch to GPS elevation data or add an app that utilizes the map elevation data so people have at least something?

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    Marco Gasparrini

    I honestly would also think it’s better in general if all devices use GPS elevation data rather than barometric as it is very variable dependent on the weather. But at least garmin gave me a normal result and consistently.

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    yen

    I was riding this evening @ 450ft - I have the k2 set @ mtrs which it was showing 62mtrs now I'm not much for sums but that works out at 186ft...I KNOW I was at 450ft, that particular area as it's the second highest point in my locality, as I've verified it many times with my smartphone...I use a SIM also, tho this reminds me to do a reset as I like to after every update

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    Oliver Gallienne

    I've just recently purchased a Karoo2 and am also suffering the same issues with incorrect elevation data.  Shame on me for not doing more due diligence before I purchased as I would have seen this pre-existing issue.  It is amazing to me that these are still being sold with a known issue on such a basic function for a head unit two years after acknowledging the problem.  I also agree with the other posts that it would be best, having already acknowledged the problem, to give those affected by it an option to get the elevation from GPS data rather than the barometer.  Seems the least that could be done for us having knowingly sold faulty goods to us

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    Marco Gasparrini

    This is the reply I received from HH:
    I can confirm that this is related to an issue that presents as spikes in the recorded elevation profile. Each spike is only a couple of meters, but they occur several time over the course of the ride that adds up to overall ascent on your ride.

    Our team is working to find the best resolution and we hope to have more news to share with the community very soon.
    At this time, we recommend a workaround of utilizing the Elevation Correction tools on 3rd-party websites like Strava, so the correct data is displayed in your ride. You would be able to find the option to correct the elevation by clicking the three dots after posting your ride.

    Some kind of smoothing of the data needs to be implemented. The barometer is too sensitive. Looks like this has been going on for almost a year now, don’t see why there isn’t a resolution. I don’t want to give up on this unit, but like come on.

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    yen

    It never fails to me how the 'developers' work the software for the k2, never will I be able to fathom it out...

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    Carsten Weigandt

    I've had 4 Karoo 2's before, all had the same error. I don't want the device anymore. Much difficult for me to switch because of the ingenious navigation and usability. But I've now bought a Wahoo Element Roam V2. What can I say, navigation is similar, only not so nice maps, but works great. In the event of deviations from the planned route, quick logical rerouting to the route. Rerouting can be switched off. Altitude meter absolutely correct, even slightly less than Strava conversion. The same up to 30 m. Display much easier to read in the sun.

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    Paulo Almeida

    Hello, in my case luckily I have not had these problems. As always, I chose to calibrate the Altitude at the Airport and it has information about the altitude you are at which helps a lot, I live on the 5th floor and in my Garmims I already had the problem of differences in the altimeter a and accumulated, the solution was extremely simple never turn on the GPS on the floor turn on only on the ground and wait for the GPS signal ok. I also use the GPS on the 0º level support so as not to change the reading instruments too much, for over 4 years I have not had large differences in altimetry or accumulated. But this is my reality luckily. Hugs and good rides.

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    yen

    As much as the k2 works, when you have a Wahoo working like Carsten says above, I wonder sometimes about my selection of cycle computer!

    I had an Elemnt and it 'just worked..prior to the k2

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    Tim Strehl

    Nearly all of my rides are a loop and my ending elevation never matches my starting elevation, which obviously makes no sense.

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    Tim Strehl

    Do the developers know what is causing the inaccuracy and are they working on it?  I have just gone back and looked at some of my rides on a 4 mile loop and the elevation is increasing by 7 feet per lap.  I have other rides where I start and end at the same location and the elevation is as much as 50 feet different.  Elevation is useless as it currently exists.  I love the climber functionality, but not sure how useable it is at this time.

     

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    Marco Gasparrini

    I’m not sure anyone actually knows the cause as I was told by support that I could exchange it but I was warned that there is no guarantee the new unit won’t have the elevation issue also lol

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    Marek Domiter

    does HH has partnership with Suunto? if Suunto can do it, why not HH? https://www.suunto.com/Support/Product-support/suunto_vertical/suunto_vertical/settings/fusedalti/

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    Paul de Jong

    Normally, while riding in flat Netherlands , I see up to 300m of elevation gain while the country is flat. Now, while in France and actually climbing some mountains, the elevation gain is almost spot on. Surprised me!

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    Marco Gasparrini

    Looks like it could really be a map issue. Isn’t there suppose to be some big map update soon? Still, it doesn’t explain why I would get so many tiny elevation spikes during the ride. A threshold needs to be applied. Meanwhile support says they don’t know if it’s software or hardware. Explains why no update to this. I could just exchange it but problem could still exist.

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    Steve MacMillan

    "Meanwhile support says they don’t know if it’s software or hardware"

    Does anyone else think this is the most troubling statement Hammerhead have made so far? I know that is a huge call given some of the things we have endured as Hammerhead users! Not much to inspire confidence in the customers when they admit not one of their employees has any idea what the problem is!!!

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    Carsten Weigandt

    As already mentioned above, exchange does not make sense. After already 4 devices with the same error, I gave it up. The older devices probably do not have this problem with the height. All the new ones are flawed. It is a gamble to catch a device without this problem. It's sad that such a device is still being sold at all. Maybe that's why the radical price reduction. Hopefully the Karoo 3 will be error-free, as all the other features on the Karoo 2 are great. The unique selling point is the navigation. I'm now on a Wahoo Element Roam V2. I didn't want to go back to Garmin. So far everything is great, very correct height and slope, navigation is also good.

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    Felix Pruemmer

    Straight to the point. Mine is from 2021 and I have this issue.

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    Marco Gasparrini

    When support says we can exchange it but no guarantee that new unit will solve the problem, then u know it’s a big problem

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    yen

    Nothing surprises me with this company, nothing; the motto should be - Hammerhead, non lo so',

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    Oliver Gallienne

    In a weird new twist I’ve come to Spain to do some riding and the elevation results are absolutely spot on…so it can’t be just a hardware problem. I know the roads are a lot smoother here than in the UK but surely it can’t be that sensitive. Very strange indeed

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    Marco Gasparrini

    I feel as if we can deduce the issue ourselves. Everyone having issues write the following:
    1. Country
    2. Route loaded yes or no
    3. SIM card in yes or no
    4. Phone paired yes or no
    5. Elevation correction manual or auto
    6. What sensors connected ant and ble
    7. Start unit indoors or outside
    And any other comments relevant.

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    Marco Gasparrini

    So I did more testing.

    1. Country - Canada
    2. Route loaded yes or no - Happens with and without route 
    3. SIM card in yes or no - No
    4. Phone paired yes or no - No
    5. Elevation correction manual or auto - Happens with both auto and manual
    6. What sensors connected ant and ble - Ant only HR/Speed?cadence

    Today's ride measured 4x greater elevation than strava. It is obvious that the sensor is just too sensitive. I did a 6" bunny hop on purpose on a flat stretch of road and the elevation gained and the grade increased and decreased accordingly. Same happens with potholes and there are many. There needs to be some smoothing or threshold activation.

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