Rotary Positioners

Compact Series - AZ/EL/AZ Positioners: Light Duty

These AZ/EL/AZ positioners provide accurate, balanced rotation, and controllable velocity in the positioning of light-duty antennas under test. Their compact and low-profile design optimizes space in test configurations as well as high operational performance, yielding the best size and weight/performance ratio.

Their rugged and straightforward construction ensures maximum reliability and trouble-free operation.


  • AL-4555-1 -
  • AL-4557-1 -
  • AL-4580-1 -
  • AL-4581-1
Compact Series - AZ/EL/AZ Positioners: Light Duty


  • General purpose positioning subsystems
  • Far-field & near-field antenna measurements
  • Small antenna testing
  • Indoor use

Product Highlights

  • Compact, low-profile design
  • High angular positioning
  • Adjustable travel in all axes
  • Rotary joint 18/40 GHz (Optional)
  • Upper AZ through hole (Optional)
  • Vertical loads ranging from 13-600 lbs (6-270 kg)
  • Turntable diameters ranging from 3.7-12.5 in (95-318 mm)
  • Excellent angular position accuracy
  • Low backlash design
  • Precision bearings
  • Closed loop servo control
  • Industry-standard wiring
  • Encoders for optimum speed regulation & control
  • Fully enclosed design of drive gear train & data take-off