Usage: Extract .hgt files from the downloaded zip(s) and place them inSimply place the downloaded files to the same folder where the offline map file resides (do not use separate subfolder).
Cᵣᵣ ranges from 0 to 10%, default is 0.7%. If using the AutoTerrain feature, assume a baseline value for smooth terrain (lower limit), as the app will generally increase the coefficient on rougher terrain.