The version is 6.041, RadioLink, radio Planning Software by Orbit Design using USGS DEM, SDTS DEM, SRTM3, SRTM30, GTOPO30 and Ordnance Survey Landform Profile, Panorama and Panorama Plus map data. Up to 25 radio links can be analised in one project. Calculations include link budgets, terrain profiles and intermodulation products....