
Proven connection from
deep space to gound consols
AR-81 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. AccuBeat’s AR81 was developed specifically for Europe’s GALILEO GNSS program and is currently deployed and operational in more than 50 locations. The unit includestwo hot redundant power supplies for high MTBF (>500,000 Hrs @25°C). BIT status showed by the front panel LEDs and via RS-232 communication port. Frequency calibration available via RS-232.
Key Features
- Ultra high stability: 2E-12@10,000 Sec
- Ultra low phase noise: -94dBc@1Hz, - 150dBc@1kHz
- Aging: 5E-11/month
- 6 outputs of 10MHz sine wave
- High MTBF: > 500,000 Hrs @ 25°C
- Supply Voltage: 90-260 VAC
Key Applications
- Ground segments of GNSS systems

Customized configurations are available, contact us to learn more.