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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Portable 10MHz Reference with OCXO or Rubidium Holdover-NT9400-O/G

Portable 10 MHz OCXO or Rubidium based GNSS GPS Disciplined Frequency Reference-NT9400-O/G

Bring Precise Timing to Where it is Needed


GNSS GPS locked 10 MHz OCXO based frequency reference locked to a 26 channel multi-satellite system receiver, provides for fast lock under weak signal conditions. Unit produces 10 MHz, 1PPS, NMEA and a synthesized secondary channel that can range from 14 kHz to 10MHz. Optional NTP Time server.  Auto-calibration maintains output stability in an intermittent GPS environment. Battery provides for in excess of four hours of use. The NR9400 can be powered from an external 12 Vdc source. Event inputs record to 100 ns resolution. Rubidium holdover option available.

  • Battery life in excess of four hrs.
  • 1PPS signal output.
  • 26 channel high-sensitivity, multi-GNSS receiver. supports TRAIM and various position modes, allowing it to output accurate and robust 1 PPS synchronized to UTC time.
  • Supports GPS, GLONASS, QZSS, SBAS, Active Anti-Jamming and Advanced Multi-path Mitigation functions.
  • 10 MHz harmonic distortion <-30dBc.
  • Optional synthesized secondary channel that can range from 14 kHz to 10 MHz.
  • Optional NTP time server.
  • Optional Internet connectivity.
  • Event input records to 100 ns resolution.
  • Holdover drift < 1 ms/day OCXO, 20 usec/day with Rubidium option
  • IRIG B.
  • Available with Rubidium reference for extended holdover performance.


Brand : Novus          SKU : NT9400-OG

GNSS Locked Frequency References
Portable Frequency Reference
AC Powered, DC Powered, Auto Calibration, NMEA, NTP, PPS, 10 MHz, Networking, GNSS Locked , Portable Reference

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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.