Waveshed
RF propagation and viewshed/LOS analysis (coverage, point-to-point) powered by the Aether GPU engine.
Waveshed computes viewsheds, radio coverage and point-to-point links in QGIS. What can be seen from this hilltop, and from where is this mast visible? How high must an aircraft fly to stay in sight of the site? How much signal reaches which valley? Does the link between two towers hold? Visibility is computed as a line-of-sight viewshed and as an LOS Floor, the lowest altitude at which each place first sees your site. Radio coverage uses the ITM (Longley-Rice) propagation model. Point-to-point analysis gives you the terrain profile and the link budget of a path. All of it runs on the Aether GPU engine, so a 300 km ITM coverage at 30 m or a 2 m viewshed over a whole region finishes in seconds. Results come as rasters that you style in QGIS and export as GeoTIFF. The built-in Map Converter prepares terrain from your own GeoTIFFs, from national elevation models such as swisstopo or from free global elevation tiles, and adds buildings from OpenStreetMap. The engine is a separate download for Windows x64, Linux x64 and macOS arm64. The plugin installs it with one click from https://waveshed.io, where you also get a free key for non-commercial use. Commercial licences are available on request. Results are model predictions, not measurements, so verify them before you rely on them.