AR133/AS133

leading multi-functional rubidium Frequency standard

AR133

Accurate Time & Frequency Ruggedized System

The AR133 series are AccuBeat's Standard and high performance atomic clocks, where the accuracy and stability are derived from a quantum transition that occurs in a free rubidium atom. The units utilizes a unique advanced technology, which allows a high-performance component with several options for adjusting the clocks to the different customer requirements. AR133 series are one of the best stable, robustness and accurate atomic clocks in the world. 

Comprised of a unique DFLL (Digital Frequency Lock Loop) where a high performance crystal oscillator is locked to the rubidium atomic line using an embedded microprocessor and a special patented algorithm. The algorithm optimizes the performance vs. external disturbances, improves temperature stability, and enables very fine digital frequency control.

Product Highlights

5E-11/month
Long Term Stability

 -150dBc/Hz @10kHz
Phase Noise

1µs/24 hours
Accuracy-Long Term

Performance

Performance (Rubidium Mode)
StandardOption(s)
FrequencyShort Term Stability (ADEV)< 3E-11 @ 1s<1.5E-11 @ 1s / <5E-12 @ 1s
< 1E-11 @ 10s
< 5E-12 @ 100s< 2.5E-12 @ 100s
< 2E-12 @ 1000s (Typ.)< 1.5E-12 @ 1000s (Typ.)
Phase Noise<-102 dBc/Hz @ 10Hz
<-135 dBc/Hz @ 100Hz
<-145 dBc/Hz @ 1kHz
<-150 dBc/Hz @ 10kHz
<-116 dBc/Hz @ 10Hz (Typ.)
< -142 dBc/Hz @ 100Hz (Typ.)
< -154 dBc/Hz @ 1kHz (Typ.)
< -158 dBc/Hz @ 10kHz (Typ.)
Harmonics< -44 dBc (up to 70MHz)< -50 dBc (up to 70MHz)
Spurious< -80 dBc in the range
10Hz to 100kHz from carrier
< -110 dBc in the range
10Hz to 100kHz from carrier
Warm-up< 5E-8 (Lock) within 4 minutes @ 25°C
±5E-10 within 5 minutes @ 25°C
Retrace< 5E-11 with on-off-on cycle: 24 hours, 48 hours, 12 hours
Accuracy @
Shipment
< 5E-11
Magnetic Field
Sensitivity
< 8E-11 / gauss up to 3 gauss DC (worst direction)
Long Term Stability
(Free run)
<±1E-10 / month (after 3 months
of operation)
<±5E-11 / month (at shipment)
<±1E-11 / month (at shipment)
Long Term Stability (Disciplined to
external 1PPS)
<±2E-12 (24 hrs average)
Temperature
Stability and Range
3E-10 over -20°C to +65°C3E-10 over -40°C to +74°C (Base Plate)
5E-11 over -20°C to +65°C (Base Plate)
Time Accuracy (1PPS)Long- Term Accuracy1μs / 24 hours (after disciplining/calibration) typical @ 25ºC
Disciplined to external 1PPS - 40ns (20ns typical) RMS @ 25°CDisciplined to external 1PPS - 15ns (7ns typical) RMS @ 25°C
Power Consumption (standard Rubidium mode)@ Steady-state< 8.25W @
25°C
                                                      
@ Warm-up< 18W@ 25°C< 16W @ 15VDC, room temp.

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

AR133 Key Features

  • Long-term-stability: 5E-11/month
  • 2E-12 frequency accuracy & 100nSec 1PPS accuracy
    Relative to 1PPS input when disciplined
  • Short term stability: 5E-12 @ 100s
  • Phase noise: -150dBc/Hz @10kHz
  • Outputs: 10 MHz and 1PPS
  • Supply voltage: 15 VDC / 12 VDC (option)
  • Steady state power < 8.25W
  • Power-saving mode  < 1.8W
  • Steady State (option)
  • Size: 77 x 77 x 25.4 mm (3” x 3” x 1”)

AR133 Key Applications

  • Secure Communication
  • Telecommunication
  • Software Radio
  • Test Equipment
  • Cellular Base Stations
  • TV Stations, HDTV
  • Scientific Equipment
  • Calibration
satalite

Related Products

2

Ar133-03

Ruggedized Version of AR133

3

NAC1

Smallest Atomic Clock

black

AR50-05

Portable Time Dissemination  

Closeup female hand on landline phone in office. Faceless woman in a suit works as a receptionist answering the phone to customer calls

TALK TO AN EXPERT

We invite you to connect with us regarding any inquiries you may have about our services. With over 40 years of experience connecting OEMs and customers worldwide, we are committed to providing you with expert guidance and support. Your questions are important to us. Our seasoned team is dedicated to promptly addressing your concerns and ensuring you receive comprehensive information tailored to your requirements.
Please let us know what's on your mind. Have a question for us? Ask away.