Why do long-distance wireless video transmitters recommend cofdm advantage

COFDM, Kodowane multipleksowanie z ortogonalnym podziałem częstotliwości
1. Requires much narrower bandwidth than analog’s
2. Resistant to multi-path
3. Robust signal in NLOS (brak zasięgu wzroku)–Performing inside buildings, through walls, and around corners
4. Error correction & strong encryption
5. High performances on aircraft, pojazdy, statki
6. Performs well in high-speed moving transmission