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The Channel Master antenna rotor is mast-mounted, motor-driven that permits the operator to conveniently rotate the outdoor antenna in any direction to optimize reception of a desired TV channel. The CM9521a rotor should be considered when TV signals are being derived from broadcast towers in different directions and a single antenna cannot accommodate all locations.
The CM9521a rotor consists of two parts: 1) an indoor control unit, and 2) an outdoor drive unit. The two are connected via a multi-conductor wire that carries the voltage and control signals from the indoor unit to the outdoor drive unit.
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