GPS device that generates incorrect data in gpx format files

One of our users recorded a route in two GPS devices: Garmin and Polar. 

The results displayed by IBPindex were pretty similar. Oddly, the analysis of the files generated by Polar was rather different depending on whether the format of the file was GPX or TCX.

After the analysis of the files we found that, for the same route, the device included different data in the file depending on whether the format was GPX or TCX.

We quote here the question of the user:

To: info@ibpindex.com

Subject: CONSULTATION

Good evening,

I have a question I would like you to solve for me, if possible.

I have a Polar M400 and Garmin Vista HCX. Polar allows me to download data from the same route in formats GPX and TCX, and only GPX in the case of Garmin.

When analyzing the files with IBPindex, I find three different results. I could understand differences between Polar and Garmin, all in all, these are different devices and configuration settings can be also different.

But, in the case of Polar, the same track gives very different results depending on the format you download it (either GPX or TCX).

What can be happening?

I send you attached the three files.

And the conclusions of our analysis:

The correct tracks are "2016_06_05 _-_ garmin_vista_hcx.gpx" and "2016_06_05 _-_ polar_m400.tcx".  

"2016_06_05 _-_ polar_m400.gpx" is incorrect.

This image shows a comparison of the data exported from Polar in the GPX and TCX files.

The GPX height data accumulates many mistakes. It seems there may be something wrong in the conversion process to GPX. 

It would be very interesting to see if this only happens with this trails or happens in all cases.

If you can do some tests, please let me know what are the results. Is there perhaps a problem in the firmware of the device?

Joan Casares
IBPindex

GIRO D’ITALIA 2016 – Know the details and IBPindexes of all the stages

On May 29, Sunday the Giro d’Italia ended in Turin with the Italian Vicenzo Nibali (Astana Pro Team) as the winner. 

Check out here all information, statistics, IBP indexes and tracks of all the stages.

Vicenzo Nibali shared the podium with the Colombian Esteban Chaves (Orica-GreenEdge) at 0’52’’ and the Spaniard Alejandro Valverde (Movistar) at 1’50’’. The Spaniard Mikel Nieve (Sky Team) won the Maglia Azzurra / Blue Jersey awarded to the winner of the Mountains classification.

The 99th edition of the “Corsa Rosa” went through four countries: the Netherlands, Italy, France, and Germany. Check out here the IBP indexes and tracks of all the stages.

The Tour of Norway starts tomorrow: check out all the relevant info and IBPs

The Tour of Norway gets on the road tomorrow Wednesday 18, May with the participation of three UCI Pro team that will take part also in this year’s Tour de France: Team Lotto NL – Jumbo NL from the Netherlands, the South African Dimension Data, and Lotto – Soudal from Belgium.

The Norwegian National Team will also be part of the peloton composed, in this edition, of 22 teams.

The participants need to be ready for a demanding race, combining fjords with a mountainous and irregular landscape, and, especially, for the stages 2 and 3 which score 257 and 232 in their respective IBPindexes.

Know all about the routes, distances, and IBPindexes in the following link:

http://www.cicloide.com/nci_travesia.php?t=299 

You can also visit here the official site of the race.

Analyze STRAVA trails now easier

Now it is much easier to analyze and save any route strava

From the home page IBPindex no need to be registered or logging;

http://www.ibpindex.com/index.php/en/


You can analyze any route that is saved in strava and save it, export it or modify it.


Try it !!


Greetings and enjoy the most of your outings !!


Joan Casares
IBPindexTeam