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.

Call Today – (816) 836-7446


Six Channel 10 MHz GNSS GPS Disciplined Oscillator with External Synchronization Capability to 1PPS or RF

Six Channel 10 MHz GNSS GPS Disciplined Oscillator Frequency Reference with External Synchronization –

Six Channel Frequency Reference Locks to GNSS or External 1PPS or 10 MHz


The NR3626 is a high-performance 10MHz frequency reference that is driven by a low phase noise SC cut OCXO disciplined by a 26 channel GNSS receiver. The 10MHz outputs are 13 dBm while the 1PPS outputs can be 5 or 3.3 Volt logic levels with the capability of driving a 50 Ohm load. In addition to the built in GNSS GPS receiver, there are an external 10 MHz and external 1PPS input that can be used to discipline the reference. The priority for each disciplining signal is software settable between the three signal sources.

  • Low phase noise OCXO.
  • Six channels
  • Low close-in phase noise..
  • PPS drives loads including 50 Ohms.
  • GNSS GPS lock indicator and built-in self-test.
  • Holdover stability of 5 ppb/day, 50ppb/year.
  • Self-calibration minimizes frequency transition during GNSS-lock.
  • Locked accuracy < E-11.
  • Operates from DC power in three ranges +- (10 to 18, 18 to 36, 36 to 65) Vdc or an AC adapter.
  • 1PPS Accuracy 25 ns rms. 
  • Indicators and signals provide GNSS GPS lock and unit self-test status.
  • Also available in a 19 inch rack chassis
  • GPS DO

Brand : Novus          SKU : NR3626-OG




GNSS Locked Frequency References
AC Powered, DC Powered, Low Noise, Auto Calibration, NMEA, PPS, 10 MHz, done, GNSS Locked

Product Inquiry Form

    Your Name (required)

    Your Email (required)

    Inquiry Product Name

    Your Message



    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.