AR81 – GNSS Ground Segment Unit


The AR-81A is a 1U, 19” rack-mount ultra-high stability and ultra-low phase noise
Rubidium Frequency Standard specifically designed for ground segments of GNSS systems.
The unit is already deployed by the GALILEO project in more than 50 locations around the
word. Key attributes of the AccuBeat AR81 are:

  • Ultra high stability: 2E-12@10,000 Sec
  • Ultra low phase noise: -94dBc@1Hz, -150dBc@1kHz
  • Aging: 5E-11/month
  • High MTBF: > 500,000 Hrs @ 25°C

AccuBeat Ltd. is a leading designer and manufacturer of exceedingly accurate Frequency and Timing solutions and products suitable for Aerospace, Defense, Telecommunications, Research and other applications.