Precision timing based on GPS synchronization

Using GPS technology to provide a low-cost precision reference clock has application in numerous distributed computer and telecom systems. PC clocks in particular are notoriously inaccurate due to variations in crystal tolerance, calibration and temperature effects resulting in clock drift of many seconds per day. For time-critical applications such as globally-linked financial systems, mobile base-station networks, and power switching equipment, clock error can have catastrophic results.

Here is where GPS satellite synchronization provides a convenient and cost-effective solution for clock accuracy down to 15 billionths of a second.
       
u-blox’ GPS clock synchronization technology allows globally distributed computer and telecom systems to synchronize their clocks continuously and cost-effectively even in the remotest of locations:
  • Achieves location-independent clock synchronization even when only 1 satellite is in view
  • Delivers high and continuous accuracy to within 15 nanoseconds
  • Based on the highly-precise GPS atomic-clock time defined and maintained by the US DoD
  • Fast satellite acquisition via u-blox’ proprietary KickStart and AssistNow technologies
  • Flexible GPS-synchronized time-pulse output: u-blox GPS receivers can be configured to update at user-defined frequencies
  • Simple, small, low cost antenna can be placed indoors or within machinery thanks to u-blox’ SuperSense technology
  • Small surface mount GPS receiver module requires little space
  • Very low cost solution
u-blox products for precision timing:

  • LEA-6T GPS receiver module with precision timing functionality

  


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