Quartzlock Products


The Quartzlock E10-MRX Sub-Miniature Atomic Clock (SMAC) is a low cost Rubidium Atomic Oscillator with 10MHz sine-wave 50 Ohm output and Accuracy of 5E-11.

Operating from 12Vdc, in a miniature enclosure, measuring only 51 x 51 x 25mm this rubidium has all the performance needed for the internal referencing of a wide range of wired, wireless and instrumentation applications. Quartzlock's SMAC technology far outperforms chip scale atomic clock devices with the E10-MRX far superior AVAR and phase noise.

The E10-MRX is only <150g mass, and the smallest and lightest atomic clock with -95dBc/Hz Phase Noise and 8E-12/100s Stability.

The power consumption is 6W at 12V dc / 500mA after 5min warm time. Volume is just 65cc.

No antenna or view of sky is required as the E10-MRX is a completely independent atomic reference.

Installation is completely simple….PCB mounted, all connections are via "OCXO" layout pins.

The SMAC Rubidium oscillator is similar in cost to an OCXO; however the E10-MRX has 100 x better drift performance whilst maintaining the high frequency and time accuracy required for demanding applications. The outstanding performance, low power consumption and compact form factor make this rubidium oscillator suitable for telecoms, aviation, nautical and precision test and measurement environments as well as wireless base stations.


  • No drift
  • High stability
  • 2 year warranty
  • Stability 8 x 10-11/s


  • Frequency calibration
  • Telecom network synchronisation
  • Broadcast
  • Aviation
  • Nautical
  • Precision test and measurement enviroments
  • Cellular wireless base stations


  • Cost effective
  • High performance reference
  • Fits 1U case
  • Low failure risk
  • Simple systems integration

Standard Specification:
Output Frequency 10 MHz
Output Level +10 dBm +/-3dBm into 50 Ohms
STS1s 8x10-11
STS10s 3x10-11
STS100s 8x10-12
Aging 1 Day 5x10-12
Aging 1 Month 5x10-11
Phase Noise 10Hz -95 dBc/Hz
Phase Noise 100Hz -125 dBc/Hz
Phase Noise 1Kz -135 dBc/Hz
Harmonics dBc -40 dBc
Warm Time 5 min @ +25C
Retrace 2x10-11
PSU Nominal 12 V dc
PSU Min 12 V dc
PSU Max 15 V dc
Current 1.5 A
OT Min -20 C
OT Max +50 C
ST Min -55 C
ST Max +85 C

Optional Extras

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

Images & Information


The E10-MRX is a low cost, sub-miniature pcb mounted, rubidium oscillatior that maintains the high frequency & time accuracy required for demanding applications.


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