So this is the first time I have attached files and I hope you can view them. My question is why I get different total mileage for a track depending on which way I look at the info. If I look at the Graph tab it says total distance is 14.2 KM which I think is correct. If I go to the Properties tab and select all the index points I get 11.8 KM, however if I select all but the final index point ( index 942) I get 14.2 again. Why is this? What is the purpose of index 942 and where does the 11.8KM come from? I have a Garmin etrex 20x. Thanks.
There is something else very wrong with your file. The properties box is showing 11.8kms horizontal BUT it also shows elevation gain of 43.6kms (43664m). That is impossible. If you attach a copy of the actual track someone will be able to tell you what is wrong.
So this is the first time I have attached files and I hope you can view them. My question is why I get different total mileage for a track depending on which way I look at the info. If I look at the Graph tab it says total distance is 14.2 KM which I think is correct. If I go to the Properties tab and select all the index points I get 11.8 KM, however if I select all but the final index point ( index 942) I get 14.2 again. Why is this? What is the purpose of index 942 and where does the 11.8KM come from? I have a Garmin etrex 20x.
Thanks.
The reason for the difference is when the entire track is used, BaseCamp displays the statistics that the device indicates in the source file, but when you don't have the entire track selected, BaseCamp calculates the statistics from the track points, which is generally considered less accurate. I can't say for your case why there is such a large difference between the two.
There is something else very wrong with your file. The properties box is showing 11.8kms horizontal BUT it also shows elevation gain of 43.6kms (43664m). That is impossible.
If you attach a copy of the actual track someone will be able to tell you what is wrong.
Thank you for your response. I would very much like to attach my gpx file of actual track but apparently it is not an acceptable file type according to the 'manage attachments' function above. Please advise as I would like to solve this problem - it's driving me nuts.
Hello Athena,
The problem was poor satellite reception because of the high and dense tree cover. The recorded elevations are way off. The Fit File Repair Tool has an elevation correction function that uses digital contour maps from MapQuest. Here ya go....fixed with the FFRT.
Thank you - that is amazing! It is true I was in a very densely forested area which is common for where I live. I bought my GPS primarily for geocaching but now enjoy tracking my hikes so I guess I will continually have this problem when hiking in the forested areas. Is the tool only available by license or is there a free one available? I assume you got yours from the fit file repair tool web page? Thanks again Don for taking the time with this.
Yes you will need to buy a license to use the FFRT to fully repair your tracks. Also....when in areas of poor satellite reception it helps if the device is carried upright (the antenna is on the top) as high as possible and away from your body as far as possible. I carry my GPSMAP78 in a thin case on the top of my backpack and get fair reception in the trees. The worst place to carry a gps is on your belt or on a clip hanging beneath your backpack.
Thanks for the advice. As I previously mentioned I originally bought the Garmin for geocaching and it is relatively inexpensive. It does not have a visible antenna. However I have been carrying it in my pocket so will switch to top pocket of backpack when hiking.
