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Started by : Victoria Nealon on 06/01/15

Viewed : 2526 times

 

Total Posts : 5  (Oldest First)   Show Most Recent First
Photo View Member Profile Victoria NealonView Member Profile Member since August 2010 Posted 6 years ago
 0

When I record runs on my garmin, at the time it beeps every mile and gives me my pace.  On uploading my run however it often changes the length of the splits though as changes them to either shorter or longer than a mile slightly which then changes my average pace for those splits.  Can you tell me why this is pleae? This is on all runs whether routes that are already saved, or new routes measured whilst I was running.

 

Thanks

 
Photo John at GRGView Member Profile Member since February 2006 Posted 6 years ago
 0

I think the watch may be trying to adjust the distance displayed as you run to compensate for weak or lost GPS signals where it has difficulty recording the coordinates.  Once the route is uploaded we simply plot the coorindates provided on the map and measure this, so the distance will always be an accurate reflection of the coordinates.  Unfortunately GPS watches are not as reliable as we like to think and it is easy to be lulled into unwavering faith in the measurements they give us - our article on Measuring Routes give some further informaiton about this.

 
Photo View Member Profile phil NewmanView Member Profile Member since December 2010 Posted 6 years ago
 0

Hi John,recently purchased a Polar M400 Watch,which syncs data to Polar Flow site.Is there a way of loading data automatically to GRG ?.i have resorted to loading manually to log a run,however age grading and elevation not available.Any advice please.Thanks :)

 
Photo View Member Profile phil NewmanView Member Profile Member since December 2010 Posted 6 years ago
 0

Update on my previous post,my daughter who is more computer savvy,and a couple of friends on grw advised/tried a couple of things.Uploaded tcx file, hr showed but no route, gpx file no map but auto hr showed ?

 
Photo View Member Profile Roland BurtonView Member Profile Member since November 2008 Posted 6 years ago
 0

I've been wondering the same recently Vicky. I've noticed it's more prominent since I've had my new watch (FR220 vs FR610).

It does make more sense that the mile markers are more accurate when plotted on a "real" map rather than by GPS.

 
   
 
 
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