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 Simulated Source-NR3700-PPS

Low Cost 1PPS Synthesized from a Low Noise, stable OCXO

A Source of PPS in GNSS Denied Environments


The NR3700-PPS is a low cost means to have a source of PPS when GNSS GPS is not available. The 1PPS is synthesized from a high stability OCXO offering +-50 ppb/year. The synchronous counter keeps pulse to pulse jitter well below a 1 ns. The pulse frequency and pulse width are factory programmable.

  • 1PPS pulse width factory programmable in 1 usec steps
  • While a PPS source the frequency is also factory programmable.
  • Operates from DC Power in three ranges +- (10 to 18, 18 to 36, 36 to 65) VDC or an AC Adapter
  • Temperature stability 10ppb/range
  • Aging +-5 ppb/day, +-50 ppb/year
  • Drives 50 Ohm loads 5 or 3.3 Vdc CMOS levels
  • Auxiliary LVDS output
  • Optional 10 MHz sine
  • Other Frequencies available

Brand : Novus          SKU :NR3700-PPS



AC Powered, DC Powered, PPS, Modular Chassis

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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.