AR76

Accurate Time & Frequency Ruggedized System

AR76-front-backV2

GPS/GNSS-Disciplined Rubidium Time Server

With optional anti-spoofing and jamming capabilities, the AR/AS76 is a multi-function GPS Disciplined Rubidium Atomic Clock, which provides accurate time & frequency. The AR/AS76 incorporates numerous features into a single box, including a Rubidium Frequency Standard, an internal C/A code 12 channels GPS receiver,and an input from external 1PPS / frequency.

The AR79/AS79 extensively supports the evolving needs for broadband access services delivery, including high throughput, flexible management capabilities, and a high degree of scalability and flexibility to cater for future requirements and technology trends.The AS79 offers advanced Quality of Service (QoS) features including classification and mapping based on layer 1 through layer 4 attributes, rate limiting per service, with highly flexible scheduling, queuing, and shaping options.

Product Highlights

1E-12
Frequency Accuracy

30ns RMS
1PPS Accuracy

≤80dBc/Hz
Phase Noise

Performance

Performance
Mode of workStandardImproved (option)
Time (1PPS)1PPS accuracy (Disciplined to GPS)30ns RMS between two similar systems≤ 10ns RMS (typical 6ns RMS) between two similar systems
Free running Rubidium≤ 1 μs / 24 hours (typical) After 24 hours of disciplining
Frequency Accuracy≤ 1E-12 (Disciplined to GPS or to external 1PPS)
Long Term Stability
(Free running Rubidium)
≤ 1E-10 / month≤ 5E-11 / month
Short Term Stability
(ADEV)
≤ 3E-11 @ 1s
≤ 5E-12 @ 100s
≤ 1E-11 @ 1s
≤ 5E-12 @ 100s
Temperature Stability±3E-10 over -20°C to +65°C
Phase Noise (@ 10MHz)≤ -80dBc/Hz @ 1Hz
≤ -114dBc/Hz @ 10Hz
≤ -140dBc/Hz @ 100Hz
≤ -146dBc/Hz @ 1KHz
≤ -147dBc/Hz @ 10KHz
≤ -125dBc/Hz @ 10Hz
≤ -150dBc/Hz @ 100Hz
≤ -155dBc/Hz @ 1KHz
≤ -160dBc/Hz @ 10KHz
Frequency
Harmonics (10MHz)≤ -48dBc
Spurious (10MHz)≤ -100dBc @ ± 100KHz
Warm-up timeRubidium Lock < 4 minutes 5E-11 within < 60 minutes 1E-11 within < 4 hrs
1E-12 within < 24 hrs

Additional product specifications, outline drawings and block diagrams and test data are available on request.

AR76 Key Features

  • AccuBeat’s proprietary Anti-Spoofing solution
  • Frequency Accuracy: 1E-121PPS
  • Accuracy: 20ns RMS
    Holdover: 1μs/24 hours, 1E-10/month
  • 20 outputs (10MHz, 1PPS, TOD)
  • 12 channel C(A) code GPS receiver
  • Dual AC Power supply 90-260 VAC
  • LCD Front Panel Display showing TOD, synch status and more

AR76 Key Applications

  • Secure Communication
  • GNSS Denied Scenarios
  • Power Utilities
  • Communication Networks
  • Financial Services
  • Server Networks
  • Enterprise Networks
  • Satellite Ground Stations
Atomatic Clocks Products 2

Customized configurations are available, contact us to learn more.

Related Products

AR71-650(Resize)

AR71

SWaP-C NPT/TPT Server 

AR-77

AR77

Ruggedized Version of the AR76

AR79(Resized)

AR79

Top of the Line Time Server

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