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GNSS Locked 50 MHz Reference-NR7400-50

GNSS Locked OCXO Based 50 MHz Frequency Reference

NR7400-50

GNSS-locked OCXO, 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 -ie satellite up links- where the higher operating frequency affords a 14 dB reduction in phase noise versus a 10 MHz 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.
Category:
Frequency References
Sub-Category:
GNSS/GPS Locked References-OCXO Based
Tags:
AC Powered, DC Powered, Low Noise, Auto Calibration, 50 MHz, GNSS Locked , Rack Mount

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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.