Rotor (antenna)
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An antenna rotor is motorized device that rotates an outdoor antenna to the required direction of transmission or reception.
The rotor (or rotator) is normally mounted on a radio mast, with a manually-operated control device at ground level, to allow the television or radio user to conveniently rotate the outdoor antenna in any direction. The control unit is usually placed indoors near the television or radio set. A multi-conductor wire carries power and control signals from the indoor control unit to the mast-mounted drive unit.
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