Samples are here:
Rectangle:
Latitude 80N-85N
Longitude 035W-030W
http://www.funair.cz/downloads/elev/new ... W-030W.zip
Latitude 80N-85N
Longitude 045E-050E
http://www.funair.cz/downloads/elev/new ... E-050E.zip
Coordinates must be divisible by 5.
Unzip file and copy to folder ElevationData.