Despire "enabling" elevation corrections afetr I downloaded a race the other night I still have a great big "spike" in my profile data.
Anyone any idea how this happens and how to prevent it ?
This is the activity data.
http://connect.garmin.com/activity/171932682
This is the course data
http://connect.garmin.com/course/1085938
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Thread: Garmin Elevation Spikes
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27-Apr-2012, 03:51 PM #1Senior Member
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Garmin Elevation Spikes
...for, as long as but a hundred of us remain alive, never will we on any conditions be brought under English rule. It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom – for that alone, which no honest man gives up but with life itself.
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27-Apr-2012, 04:28 PM #2Senior Member
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Re: Garmin Elevation Spikes
Never had it myself, but it could be elecrical interference, does it happen on every ride or was it just this one?
Must be mad not got enough money to be excentric, the older I get the better I was
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27-Apr-2012, 04:32 PM #3Senior Member
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Re: Garmin Elevation Spikes
Couple of times now, I used to think it happened after switching off and on again (like at a cafe stop) but the last 2 have been on constant runs.
...for, as long as but a hundred of us remain alive, never will we on any conditions be brought under English rule. It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom – for that alone, which no honest man gives up but with life itself.
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27-Apr-2012, 05:27 PM #4Senior Member
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Re: Garmin Elevation Spikes
Never had elevation spikes, but my heartrate goes through the roof and I have to correct that in the text file.
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27-Apr-2012, 05:52 PM #5Senior Member
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Re: Garmin Elevation Spikes
Text file ?
How would one go about that ?...for, as long as but a hundred of us remain alive, never will we on any conditions be brought under English rule. It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom – for that alone, which no honest man gives up but with life itself.
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27-Apr-2012, 06:40 PM #6Senior Member
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Re: Garmin Elevation Spikes
Could it be from a satellite black spot, limiting the gps true reading?
Originally Posted by johnstrac
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27-Apr-2012, 10:33 PM #7Senior Member
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Re: Garmin Elevation Spikes
The Edge 500 has a barometric altimeter, so what you shouldn't do is cover up the small hole(s) on the back of Garmin GPS as that's how they test the air pressure. But it sounds like this isn't the case here. Was there a really quick but short tailwind?
I suppose the spikes are why you are using elevation corrections on Garmin Connect.
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27-Apr-2012, 10:49 PM #8Senior Member
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Re: Garmin Elevation Spikes
Might not be the best way, but this way works for me.
Upload to Garmin, (Identify roughly the max peak which is out, take a note of the value) download an XML file, open with notepad and then search for the value, and edit to make it match neighbouring values. Save and upload back.
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28-Apr-2012, 10:22 AM #9Senior Member
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Re: Garmin Elevation Spikes
As Allezhopper said the edge 500 has a barometric altimeter.
I never enable the corrections and have no problem.
Also with these devices take no notice of the Calories used unless you
have the Heart Rate Monitor as well .
Calories read as double when not using heart rate monitor.
I had to cut down on me cakes !
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28-Apr-2012, 02:36 PM #10Senior Member
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Re: Garmin Elevation Spikes
I have the hrm but I find if I don't correct the elevations I'm sometimes 200 ft below sea level !
...for, as long as but a hundred of us remain alive, never will we on any conditions be brought under English rule. It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom – for that alone, which no honest man gives up but with life itself.
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