10 MHz Frequency References – OCXO, TCXO and Rubidium Based. GNSS-Locking Provides Long-Term Stability

Novus offers a range of GNSS GPS disciplined oscillators and related reference products. While our most  popular frequency reference is 10MHz, many of our products are available at 50 and 100 MHz. Unique frequencies are available as well. Novus references can be OCXO , TCXO or Rubidium based. GNSS-locking enhances long-term stability.  Stability options are available that incorporate vibration and thermal isolation. Our reference products are available in 19 inch rack mount and modular, chassis.  Our miniature PicoPod series fits almost anywhere.  Novus reference distribution amplifiers offer minimal phase noise contribution and skewing.  Novus PPS sources can be synchronized to a 10 MHz reference to provide a complete timing solution.  Our PPS sources can be directly from a GPS PPS source or processed to improve jitter and statistical accuracy. For GNSS denied environments,  Novus offers a range synthesized 1PPS sources.   Our PPS distribution amplifiers offer sub 1 nsec skewing and transient and fault protection. For enhanced control and monitoring, SNMP and local control are available as options. Portable reference products offer excellent holdover stability to provide accuracy in GNSS denied environments.

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1PPS Disciplined 10 MHz Frequency Reference NR6720-PPS

10 MHz Low Noise OCXO Disciplined to a 1PPS Source


Modular 1PPS Disciplined Frequency Reference

The NR6720-PPS locks a low noise OCXO to an external 1PPS signal. The 1PPS signal can be 3.3 or 5 Volt CMOS.  The disciplined oscillator features auto-calibration so that the most recent coefficients to compensate the OCXO for drift due to aging and/or temperature are stored and applied to the OCXO during GNSS GPS loss of lock conditions. The unit operates from a nominal 12 Vdc power source or available AC power adapter. Unit can be configured to operate from -60 to +60 Vdc in three ranges.

  • Holdover stability of 5 ppb/day,  50ppb/year.
  • PPS stability option- P-P jitter < 700 ps.
  • Locked accuracy <4E-11.
  • Available -60 to +60 Vdc in 3 ranges.
  • Indicators and signals provide GPS/GNSS lock and unit self-test status.


Brand : Novus          SKU : NR6720-PPS



GNSS Locked Frequency References
AC Powered, DC Powered, Low Noise, 10 MHz, Modular Chassis, OCXO

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    GPS DO Kits are available that include antenna, cables and power supply. Several features can be customized at the factory – frequencies other than 10 MHz either from a unique crystal or with a built-in synthesizer that is GNSS-locked. Time stamping capability to 100ns resolution. To meet unique requirements, we have shipped product with output features requiring a custom amplitude, square wave output, high voltage and high current drive.