RadioWORKS: A tool for calculating radio wave properties. Get frequency info like free-space wavelength. Calculate antenna length. 3D coverage map. 2D line of sight graph. Calculate path loss / various models. Predict power/range requirement changes.
OkMap is a free software for many outdoor activities: Trekking, Off road, Mountain bike, Sailing, Hunting and fishing, Finding mushrooms, Soft air, Geocaching, And many others...
