GPS Year Rollover Module

GPS Year Rollover Fix Module

The GPS week number rollover is a phenomenon that happens every 1,024 weeks, which is about 19.6 years. The Global Positioning System (GPS) broadcasts a date, including a week number counter that is stored in only ten binary digits, whose range is therefore 0–1,023. After 1,023, an integer overflow causes the internal value to roll over, changing to zero again. Software that is not coded to anticipate the rollover to zero may stop working or could be moved back in time by 20 or 40 years. GPS is not only used for positioning, but also for accurate time.

https://en.wikipedia.org/wiki/GPS_week_number_rollover

We have developed GPS year Rollover fix module. Don’t remove your GPS devices with date errors.Offer them to use again.

A date rollover corrected FURUNO GP90 GPS.
A date rollover corrected FURUNO GP90 GPS.

This module corrects the date error in GPS and sends the current date data to the device.The module is fully electrically isolated from the power and data lines from the GPS and AIS devices.

Easy installation.Plug and play.Don’t bother cutting wires and soldering.Ship crew can easily install. No service needed.

Applicaple to other GPS devices.Please contact us.

Currently Supported Devices

  • FURUNO GP-90
  • FURUNO GP-80
  • FURUNO FA-100
  • FURUNO GP-150
gps rollover module
gps rollover module
ais rollover module
ais rollover module