Since 1996, the Antenna Rotator System (ARS) is the leader for computer control of any antenna rotor.
The latest design is based on many years of experience and knowledge. ARS supports any kind of rotor (Azimuth or Azimuth & Elevation).
Since 2008, all units include a 10 bits ADC. 

The ARS connects to any parallel port (ISA or PCI) on your computer (desktop or laptop).