Alfa Radio Ltd.
11211 - 154 Street, Edmonton, Alberta, Canada, T5M 1X8

Click here for pictures of the new AZ/EL rotator

The Alfa Model RAK Rotator is a medium to heavy duty antenna rotator in the same general class as the HyGain TailTwister or Yaesu G-1000/2800 but with advanced digital features. It is priced well under these and other competing rotators. Mechanical complexity is reduced to a minimum by utilizing a simple double worm gear drive system. Position readout is sensed by a magnetic reed switch. The controller has a full complement of features, including digital readout. Controller features may be upgraded in the future with a plug in PROM.

Rotating torque is in the 1,400 to over 3,200 lb inch range, with between 12 and 24 volts to the motor. The 24 volt measured torque is 3,240 lb inches (366 Newton meters). This is significantly more than any other rotator in the same price range, and even higher than other rotators costing nearly twice as much (Yaesu 2800 or Orion 2800). Check out the rotator comparison chart below, and compare the prices.

Check out these features:

Rotator

Low voltage - high torque DC gear head motor
Rotating torque/speed: 1,400 lb in at 12v (120 sec) to 3240 lb in at 24v (60 sec)
Quiet and powerful self-braking action with double worm drive reduction
Real steel housing and final worm drive - no soft pot metal or cast
Uses inexpensive 4 conductor cable
Sealed reed switch sensor technology for reliable all weather readout
1 degree positioning accuracy - tight tolerances for minimal play
Rated for large loads even when mounted outside the tower
Designed for simple mounting to ~2" pipe mast - both ends
Adaptors available to mate with other common rotator bolt patterns
Coax can pass through center of rotator - prevents cable damage

Controller

Manual, Automatic, Scanning, and Programmable modes
Digital readout with 1 or 0.5 degree resolution
Large easy to read soft green LED display
Computer interface - USB
Low voltage DC operation from any 13.8 volt source (typically 2-5 amps)
Ideal for camping, DX'peditions, VHF/UHF rovering
Can be zeroed at any position to allow for installation inaccuracy or antenna mount slippage
Generous overtravel (+/-180) with electronic limits
Programmable limits ideal for side mount applications
Small front panel to simplify stacking several units takes up less valuable space
Mouse control with 6 user programmable presets

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Alfa rotators are of a high quality with Torque to spare!
They are custom made to withstand the harsh Canadian conditions.

Order your AlfaSpid rotators here

Dealers are welcome.
Inquiries should be directed to Alfa Radio Ltd. in Edmonton, Alberta, Canada.
780 466 5779 by phone

Downloadable Documents.

Alfa Rotators User Manuals (764 K)

Pictures of the rotator at different installations HERE.

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Owned & Operated by Amateur radio operators
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Phones 780 466 5779 - Voice 780 466 4956 - Fax

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