Apologies if that has been talked about in numerous other posts, but Garmin need to improve their search. Is anyone finding that the elevation gain is way off on the 935. A lot of my runs its reporting a figure 3 to 4 times higher than the actual value. I've tried to keep calibrating the altitude and barometer, but then it goes haywire after a short period of time. I can be sitting in my living room and have risen 50+ metres. Seems like the issue is getting worse with the newer S/W iterations. Any ideas as to how to fix? I've tried cleaning the barometer opening, but it's made no difference.
So far the elevation my unit measured during runs seemed realistic. Though I noticed my 935's calibration goes haywire every few days and I have to recalibrate it about three time a week.
Or your search technique. In the Search box above right, put 'Elevation'. Click on the triangle and select, if you wish, in titles only and forerunner 935 only. You then get this...
So far the elevation my unit measured during runs seemed realistic. Though I noticed my 935's calibration goes haywire every few days and I have to recalibrate it about three time a week.
This is probably a result of changed barometric pressure at the location where you live. The natural variations in ambient pressure over a few days can be equal to altitude variations of several hundred meter. So a barometric altimeter needs very frequent calibration.
I’m experiencing the same issue with very high total elevation gains on basically every run, as compared to GPS corrected elevation. I also ran some tests at home and had the same issue as you it seems, with the elevation climbing on its own just while sitting in my home. I ended up calling garmin support and was added to an open case they have for the issue. Also I asked for a replacement and they didn’t argue with that at all. So I’m assuming that means they consider it a hardware issue.
Also I asked for a replacement and they didn’t argue with that at all. So I’m assuming that means they consider it a hardware issue.
Interesting I just logged a call and they said they'd add me to the case. I didn't think of asking for it to be replaced. Are you in the UK and did they just replace it without any issue?
This is probably a result of changed barometric pressure at the location where you live. The natural variations in ambient pressure over a few days can be equal to altitude variations of several hundred meter. So a barometric altimeter needs very frequent calibration.
Thanks! Good to know. Initially I was a bit disappointed, it's my first GPS watch with a barometric altimeter. ;)
Hi guys - my forerunner 935 altimeter has also gone bad - ie. showing 0 elevation for a cycle of >1500m worth of climbing ..... have tried re calibrating by GPS and also manually entering in start value but still not fixed
Hi guys - my forerunner 935 altimeter has also gone bad - ie. showing 0 elevation for a cycle of >1500m worth of climbing ..... have tried re calibrating by GPS and also manually entering in start value but still not fixed
Any further suggestions ?
What happens to the Ambient Pressure reading? Does it also stay fixed when you go to another altitude? (It has to be Ambient Pressure. Barometric Pressure is not of much use for troubleshooting. Ambient Pressure is unfortunately not visible in the default widgets. But it is a built-in data field which you can use in a custom data screen in an activity.)
You did not by any chance set your watch to Barometer Mode?
What happens to the Ambient Pressure reading? Does it also stay fixed when you go to another altitude? (It has to be Ambient Pressure. Barometric Pressure is not of much use for troubleshooting. Ambient Pressure is unfortunately not visible in the default widgets. But it is a built-in data field which you can use in a custom data screen in an activity.)
You did not by any chance set your watch to Barometer Mode?
Hi Allan
Not even sure how to check or switch whether my watch is on Barometer mode? Can you advise and I will gladly check to see if this fixes the issue?
