Walton Plenum De-Ice © 2012 ASC Signal Corporation EARTH ST A TION ANTENNA The Walton Hot Air De-Ice system is designed to prevent accumulation of snow and ice on the Earth Station Antenna. There is a plenum (enclosure) located on the rear of the antenna and heaters located on the antenna structure. The heaters provide hot air for inside the plenum, which heats the reflector surface to remove or prevent ice and/or snow from accumulating.

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