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Catalog

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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GNSS GPS Disciplined Oscillator 50 MHz Reference-NR7400-50

GNSS Locked OCXO Based 50 MHz Frequency Reference

NR7400-50

GNSS Disciplined 50MHz  Frequency Reference also Offers External Locking to PPS or 10 MHz

GNSS GPS Disciplained OCXO based, 50 MHz frequency reference. The unit 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 GPS loss-of-lock conditions. High performance 26 channel GNSS receiver that supports GPS, GLONASS, SBAS, QZSS. By being able to receive data from multiple satellite constellations, lower lock time is achieved. Unit is also capable of locking to an external 10 MHz reference. Low phase design results in a reference ideally suited to high frequency applications -i.e. satellite up links- where the higher operating frequency affords a 14 dB reduction in phase noise versus a 10 MHz reference. The unit may also be locked to an external 10 MHz reference or PPS source. It may also be stabilized to an internal Rubidium reference.

  • OCXO holdover.
  • OCXO holdover stability 5 ppb/day – 50 ppb/ year.
  • Auto-Calibration continually preserves OCXO GNSS derived compensation coefficients.
  • Outputs are transient and fault protected.
  • Fault status drives a front panel LED..
  • Locked accuracy <3E-11.
  • Front panel status indicators for channel faults, antenna fault or open, oven and unit alert.
  • AC/DC power capability.
  • Various stability options available- see additional info tab
Category:
GNSS Locked Frequency References
Sub-Category:
Tags:
AC Powered, DC Powered, Low Noise, Auto Calibration, 50 MHz, GNSS Locked , Rack Mount
Data Sheet:
NR7400-50 ds 052521.pdf
Novus Design Considerations:
Novus Stability Options.pdf

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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.