StarBot 4300

StarBot 4300
Similar to the StarBot 4200, the StarBot 4300 is a portable test system designed for antenna testing of aircrafts or vehicles in-situ. Improving upon its predecessor, in addition to the high measurement flexibility for radar testing in the nose of an aircraft, its full robotic system and 6 positioning axes enable it to measure antennas anywhere on an aircraft (or vehicle): top, bottom, nose, tail, wings, etc. The StarBot 4300 is designed to characterize antennas without displacing the device under test and without enclosure in an anechoic chamber. It is the ideal spherical near-field antenna test system for extra large devices.

Main Features

Measurement capabilities

  • On-board antenna testing in its operational environment
  • Multi-beam, multi-port, multi-frequency dual polarized 
  • complex measurements
  • CW or pulsed measurements for radar testing
  • Indoor/Outdoor measurements
  • Gain
  • Directivity
  • Beamwidth
  • Cross polar discrimination
  • Sidelobe levels
  • 3D radiation pattern in any polarization (linear or circular)
  • Antenna efficiency
  • Beam pointing properties

Frequency bands

  • 500 MHz - 18 GHz

Probe array diameter

  • 6 m

Typical dynamic range

  • 0.5 - 6.0 GHz: 50 dB
  • 0.6 - 18 GHz: 45 dB

Available movements

  • Robotized trolley and 6 positioning axes



  • SatEnv
  • MiDAS*
  • 959 Spectrum* (North America only)
  • SatMap
  • SatSIM
  • Insight


  • Amplication unit
  • Mixer unit
  • N-PAC
  • Primary synthesizer
  • Auxiliary synthesizer
  • Transfer switching unit
  • Power and control unit
  • Probe array power supply
  • Heavy DUT positioner, Azimuth over Goniometer
  • Elevation positioner for gantry arm
  • Positioner controller
  • E-Stop unit
  • Local control unit
  • Real time controller
  • Control interface unit
  • Uninterruptible power supply
  • Instrumentation rack
  • Ethernet switch
  • AUT port switch


  • Removable mechanical interface supporting laser pointer and laser telemeter
  • Hardware limit, limit switches and contact detectors for security
  • Flashing light and siren
  • Shielded anechoic chamber**
  • Reference antennas (horns, sleeve dipoles, loops)

* See ORBIT/FR catalogs for more information
** See AEMI/Rainford EMC Systems catalogs for more information

Related Services

ORBIT/FR offers different levels of service plans, including factory and extended warranties, software support, and preventive maintenance as well as training services. 
>>