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MD–174 Disciplined Oscillator Module
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The MD–174 is a Low Noise GNSS disciplined module. It is a fully integrated GNSS disciplined oscillator module in a compact surface mount 40 x 50mm footprint. The module has an embedded 34 channel receiver that is both GPS and GLONASS compatible and provides a sinewave 10MHz and HCMOS 1pps output. An onboard OCXO provides stability in the unlocked mode. The module operates from −40°C to +85°C.


  • Embedded GNSS Receiver – GPS and Glonass Compatible
  • Embedded low noise OCXO
  • Field upgradeable for Galileo
  • 1pps LVCMOS output signal standard
  • 10MHz Sine output standard
  • 1pps auxiliary input
  • Other output frequencies available
  • Modified NMEA (VSIP)
  • −135 dBc/Hz phase noise at 10Hz offset
  • −170 dBc/Hz phase noise floor
  • Evaluation kit with software available

  • General Timing and Synchronization
  • Military Radio
  • E911 Location Systems
  • SATCOM Ground Terminals
  • Radar