MULTIPATH

The propagation phenomenon that results in radio signals' reaching the receiving antenna by two or more paths. ( 188 ) Note 1: Causes of multipath include atmospheric ducting , ionospheric reflection and refraction , and reflection from terrestrial objects, such as mountains and buildings. Note 2: The effects of multipath include constructive and destructive interference , and phase shifting of the signal . Note 3: In facsimile and television transmission , multipath causes jitter and ghosting.