Quartzlock Products


The Quartzlock E10-GPS Disciplined Rubidium represents a breakthrough in exceptionally low cost, traceable, calibration-free, off-air frequency & time standards. These very low cost rubidium oscilators maintain the high frequency & time accuracy required for demanding applications for the OEM manufacturer that provides the precision frequency and time synchronization required by base stations, optical network nodes, and high-speed digital networks.
The compact A10-GPS OEM products offer Rubidium Atomic Standards which are disciplined to GPS, therefore providing extremely accurate and stable frequency and time. The A10-GPS model includes a Rubidium Standard, a GPS receiver, an external 1PPS input and a Rubidium-GPS disciplining circuit (Digital PLL). The Rubidium Oscillator is phase locked to the GPS or to the external 1PPS. All outputs are derived from the Rubidium Standard, which maintains the 10MHz and the 1PPS when GPS or external 1PPS inputs are interrupted.
A GPS Disciplined Rubidium Clock frees the user from being continuously dependent on GPS reception, particularly in cases of either intentional or unintentional GPS interruptions.

Also see our new GPS Disciplined Rubidium E80-GPS which can be configured with options such as, Distribution Card with 6  outputs, battery backup more than 2 hours of running on battery and Low Phase Noise options. 


  • Low distortion 10MHz Sine & 1PPS outputs
  • <8x10-13…..5x10-14 accuracy
  • No drift
  • High stability nationally & internationally
  • 1 year warranty
  • Lowest cost available
  • Very long production life & support. Quartzlock's 2A LF tracking RX (E8-X GPS predecessor) series has been in production for >30 years.


  • No calibration required
  • Traceable reference


  • Calibration of counters, frequency meters, spectrum & network analysers
  • Synthesizers, & communication analysers
  • Reference for: VHF, UHF & PMR TX, CDMA, Tetra, DTV & DAB
  • Production test frequency standard
  • Network time protocol use in financial, utilities, security & communications timing
  • OEM
  • Standard for calibration labs, radio workshops, labs and stations


Quartzlock’s hydrogen maser based laboratory is used in production test & quality assurance to ensure compliance with offset and stability specifications.

Standard Specification:
Output Frequency 10 MHz
Output Level +10 dBm +/-3 dBm into 50 Ohms
1 PPS Output 1
Number of Outputs 1
STS1s 3x10-11
STS10s 1x10-11
STS100s 3x10-12
Aging 1 Day 5x10-12
Aging 1 Month 5x10-11
Phase Noise 10Hz -100 dBc/Hz
Phase Noise 100Hz -130 dBc/Hz
Phase Noise 1Kz -140 dBc/Hz
Harmonics dBc -40 dBc
Spurious dBc -80 dBc
Warm Time 7 min to lock
Retrace 2x10-11
PSU Nominal 12 V dc
PSU Min 11.5 V dc
PSU Max 18 V dc
Current 1.7 A warm up 0.6 A warmed
Supply DC
OT Min -20 C
OT Max +50 C
ST Min -40 C
ST Max +70 C

Optional Extras

Below you can choose from a range of optional extras to ensure the closest match to your requirements.

Images & Information


Miniature, OEM Component, traceable, calibration-free, GPS disciplined rubidium frequency reference


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