BTTB & Mobile Organizations: Topographical maps and DEM will probably be valuable for planning of installation for radio relay stations through the country. Topographical maps is often effectively utilized for tower locations and perseverance of coverage zone. Aerial Photograph: Unprocessed photograph taken from an plane. It might have distortions as https://rowannrnlt.blogprodesign.com/52494835/the-5-second-trick-for-uav-volume-calculation-bangladesh