Before revision: Planning Communications tower on Frazier Mountain, Southern California with microwave relay dishes Because radio waves travel in narrow beams confined to a line-of-sight path from one antenna to the other, they do not interfere with other microwave equipment, so nearby microwave links can use the same frequencies.
After revision: Planning Communications tower on Frazier Mountain, Southern California with microwave relay dishes Because in microwave transmission the waves travel in narrow beams confined to a line-of-sight path from one antenna to the other, they do not interfere with other microwave equipment, so nearby microwave links can use the same frequencies.