(short for an RF Signal Propagation, Loss, And Terrain analysis tool[1]) is a GNU GPL-licensed terrestrial radio propagation model application initially written for Linux but has since been ported for Windows and OS X. SPLAT!
SRTM filenames refer to the latitude and longitude of the southwest corner of the topographic dataset contained within the file.
Therefore, the region of interest must lie north and east of the latitude and longitude provided in the SRTM filename.
In 2020 several authors started the development of a completely reworked version which was not published yet.
[2] The authors introduce multithreading, georeferenced outputs (GeoTIFF) and metrication as defaults.