Ascension Flock of Birds

The Flock is Ascension's most popular tracker. Researchers, developers and end-users alike use it in all real-time visualization and interactive applications.

Ascension Technologies Corporation discontinued the production of the Flock of Birds. Replacement products are the 3D Guidance trakSTAR / driveBAY.

Key features include:

  • Pulsed DC magnetic technology for six degrees-of-freedom tracking with a universal interface.
  • Immunity from distortion from non-magnetic conductive metals. You can use this tracker around stainless steel (300 series), titanium, and aluminum without measurement errors.
  • Freedom from blocking and occlusion errors. No need to keep a clear line-of sight between sensors and transmitter.
  • Simultaneous tracking of all sensors without degradation in measurement rates. Track head and hands at the same time without delay or lag.
  • Long-range coverage is easily added by "clicking in" our Extended-Range Transmitter (ERT/ERC).
  • Multiple options to address most tracking requirements.


  • Electronics units
  • DC magnetic field transmitter
  • 25 mm sensors
  • Power supply

Specifications and other information are subject to change without notice. The information on this webpage is provided by the respective named manufacturer and is for general information purposes. These data constitute a concrete indication of properties and condition only if they are expressly indicated by EST or have been agreed upon as a condition in writing.