In stock
£595.00 £495.83
Quick Overview

Heavy Duty Rotator

Alpha SPID RAK is available to buy in increments of 1
  • Rotating torque/speed: 1,400 in/lb. at 12v (120 sec) to 3240 in/lb. at 24v (60 sec).

  • Rotation of 720 degrees from stop to stop.

  • Quiet and powerful self-braking action with double worm drive reduction.

  • Steel housing and final worm drive - no soft pot metal or cast aluminum.

  • 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.




  • Manual, Automatic, Scanning, and Programmable modes.
  • Digital readout with 1 degree resolution.
  • Large easy to read soft green LED display.
  • Computer interface via included serial cable, including Hygain, Yaesu and Orion emulation modes.
  • Low voltage DC operation from any 12 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.
  • Optional mouse control with 6 user programmable presets.



Can be incorporated with an Elevation rotator to provide full EL/AZ capability. If you need the best rotator for the biggest arrays, the RAK is for you! 

Technical specification: 

Angle of turn: 360 + / -180 ¡

Time of turn: 90 sec.

Supply: 12V-18V DC

Weight: 8 kg

Input signal: pulses (0.66 ¡ or 1.00 ¡ per pulse)

Vertical pressure: 120 kg

Maximum net torque: 180 Nm

Requires 4 core cable

This is the USB version

note: there is a mouse shown in the picture - but it is an optionlal extra and probably not required

All SPID rotators require an external power supply.

Typically they are run from the station 13.8v supply. For the larger rotators with sizable antennas, upto 8 amp would be required. In many cases a separate PSU from the rig is recommended, and start surge should be factored in.

More Information
Manufacturer Spid Elektronik
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