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A Rotor or Rotator is a mast-mounted, motor-driven device that permits you to
conveniently rotate (orient) the outdoor antenna in any direction to optimize
reception of a desired TV channel. A rotor should be considered when TV signals
are being broadcast from towers in different directions and a single antenna
cannot accommodate all locations. The rotator consists of two parts; an indoor
control unit and an outdoor drive unit. The two are connected via a 3-conductor
wire that carries the voltage and control signals.
Note: The control unit for the Channel Master 9521A is not
backwards compatible with any of the older Channel Master rotors.
The compass heading (direction) you want the antenna to point can be entered
directly using the included remote, or you can scroll to the correct heading
using the up and down buttons on the control unit (example: 90° to point east,
225° to point south-west, etc).
Programmable: You can program 69
antenna locations (1-69), corresponding to 69 over the air broadcast
frequencies. This way the antenna direction preset number can be the same as the
channel number. The non-volatile memory will hold your programmed locations
during a power failure.
Synchronize: After moving back
and forth many times, a mechanical device can become misaligned with its
electrical controller. At any time you can Synchronize the drive unit and
control unit. To realign, the motor turns fully counter clock wise and
calibrates that direction to 0° (the orientation of the drive unit is fixed at
installation). If you prefer, auto synchronization can be turned on and the
system will realign itself after each 50 direction movements.
The drive unit uses a heavy duty motor in a one-piece cast aluminum housing with
a durable powder coat painted finish. It uses a precision cut gear system,
built-in steel thrust bearings, and has wind-tested brake pads.
- Gear Ratio:
3200 to 1
- Maximum Mast Diameter:
- Maximum Vertical Load:
- Maximum Balanced Wind Load Area:
3 square feet
- Operating Voltage:
117 volts AC/60 Hz (rotator and control unit)