Innovative Network Time/Frequency and Security Solutions from FEI-Zyfer

News Items

  • FEI-Zyfer now offers the NanoSync 4 and NanoSync 4 Low Profile ruggedized military PNT systems

Precision time and frequency products

GPS/disciplined oscillator systems providing standard and custom outputs, including approved, robust, SAASM GPS HAE units

  • N.1 and N.8 Programmable Clock Rate Cards
  • NTP (Network Timing Protocol) Ethernet I/O
  • Low Phase Noise Frequency Outputs
  • Time Codes Including IRIG-B
  • Multiple Time and Frequency Output Distribution
  • Redundant Systems with Automatic Failover Switching Available
  • Time/Frequency Equipment


  • DOD programs
  • 911 and Simulcast Police/First Responder/Homeland Security programs
  • Commercial time/frequency applications
  • Telcom/Network/Broadcast/narrowcast media applications
  • Other time/frequency applications including calibration

FEI-Zyfer also provides free seminars on GPS, Precision Oscillators, Telecom & Network Timing, Network Data Security, and other Time and Frequency topics. Please contact us to schedule one for you!

Product Data Sheets

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We regret that we are no longer able to provide links to manuals, but can email copies to qualified users upon request.

Time and Frequency Systems

CommSync II Model 385

  • CommSync II-D Model 407

GSync Model 391

GSync II Model 402

AccuSync Model 373

GPStarplusModel 565

Network Time Servers

NTPSync XLS Model 383

OEM / Embedded Systems

NanoSync (I & II) Model 380