Independent GBAS Monitor (IGM)  

Release of the 3rd generation IGM with powerful new features available now!

  • New Graphics
  • Interference, Jamming & Spoofing Detection
  • Avionics grade GPS L1 C/A Rx added  


The IGM is used during the GBAS operational validation phase in accordance with ICAO requirements. During GBAS operations, permanent IGM performance monitoring is recommended.

The IGM can also be used as a GBAS receiver and performance measurement tool for various purposes.

GLS202x GBAS Base  

Release of the experimental GLS2020x GBAS Base Station!


GLS202x GBAS Base is an experimental GPS Based Precision Approach and Landing System.

It is compliant with functional and algorithmic requirements of the relevant standards broadcasting a GBAS SIS for test purposes.



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