Passive Hydrogen Maser (PHM)

Passive Hydrogen Maser (PHM)

  • Passive Hydrogen Maser (PHM)

Being the sole and the world's first supplier of the PHM for the Galileo satellite navigation system, the PHM physics package is a cost-effective, ultra-high-performance, high-reliability, space-qualified passive maser frequency standard.

We have proven expertise and capability in designing advanced maser physics packages for next-generation space applications.

PHM Features & Applications


It is typically used in the following applications:

  • GNSS/GPS navigational systems
  • SAR systems
  • FGU systems
  • MRO systems


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