This plugin corrects the elevation of GPS tracks using SRTM elevation data, which is automatically downloaded from the official SRTM download server. The plugin can also download enhanced SRTM data from Viewfinder Panoramas where available. In addition, custom elevation data provided by the user can be used for elevation correction. (Users in the United States seeking the most accurate elevation correction are encouraged to download and use National Elevation Dataset (NED) data.) All available digital elevation models are listed on the Settings page, and the priority between them can be changed. There is an option to automatically correct data at import, plus an option to exclude selected sources from automatic correction, and an option to download elevation data covering all activities in the logbook, so that no further downloads will be needed to correct the activities.

If you wish to use custom elevation data, you will also need to install the GDAL plugin.

The downloaded file should have a .st2plugin extension. Some users have reported the downloaded file for this and other plugins being incorrectly renamed to .zip. If this happens to you, just rename the .zip file to .st2plugin.

If you're upgrading from a reasonably recent version (1.4 or later), installed from a .st2plugin file, SportTracks will automatically remove the old version when installing the new one.

If you have installed an earlier (pre-1.4) version of the plugin using the old installation method of unzipping a compressed .zip file into the SportTracks Plugin folder, you should uninstall the old version manually first by deleting the files ElevationCorrectionPlugin.dll and ICSharpCode.SharpZipLib.dll. See the forum FAQ post on updating plugins for more details.

The SRTM data on the official download server has been updated from version 2.0 to version 2.1. After the update, a number of SRTM files for Canada north of 55° N were initially missing. These files have since been added, but with the wrong file names. If the elevation correction plugins encounters one of these files when downloading elevation data it will produce an error message. NASA/USGS have been notified of the inconsistent file names but haven't provided any information on when correctly named files will be uploaded.