Quartzlock Products


The Quartzlock E8-X is a breakthrough in exceptionally low cost, miniature, traceable, calibration-free, off-air frequency & time standards. These references maintain the high frequency & time accuracy required for demanding applications.

Quartzlock GPS Disciplined OCXO E8-Y  can be configured with options such as, Distribution Card with 6  outputs and Low Phase Noise options. Also in the same family there are 1U 19" Rack mount GPS Disciplined instruments the E8000 and E8010  with many options which can be customised to your meet your requirement. 


  • Low distortion 10MHz Sine & 1PPS outputs
  • <1x10-12  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
  • Many versions of the E8-X GPS DO are available. PCB, mil, low and ultra low noise E8-Y.


  • 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 (up to 100 MHz)
Output Level +10 dBm into 50 Ohms
1 PPS Output 1
Number of Outputs 1 (up to 8 Outputs available)
STS1s 2x10-10
STS10s 4x10-10
STS100s 5x10-11
STS1000s 2x10-11
Phase Noise 1Hz -85 dBc/Hz
Phase Noise 10Hz -100 dBc/Hz
Phase Noise 100Hz -125 dBc/Hz
Phase Noise 1Kz -135 dBc/Hz
Phase Noise 10Kz -145 dBc/Hz
Warm Time 15 min
PSU Nominal 12 V dc
PSU Min 6 V dc
PSU Max 14 V dc
Current 250 mA
Supply DC

Optional Extras

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

Option 46 - Add Standard GPS Antenna & Standard PSU

    Option 47 - Add High Gain GPS Antenna & Standard PSU

      Option 48 - User Specified Low Noise Output

        Images & Information


        Miniature, bench-mount, traceable, calibration-free, GPS disciplined TCXO frequency standard


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