GPS week number rollover for equipment

20 April 2022 Share Print

15th May 2022

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The subject models are designed to turn the clock back 19.6 years (29th September 2002), and will continue to work incorrectly under normal use; however, there is no influence on positioning operation. As a result, the abnormalities in some equipment may occur as 

  • some date information will be displayed erroneously
  • communication function will not work properly

Equipment in question is:

  • Inmarsat C (JUE-85)
  • Inmarsat mini-C (Jue 95SA/95LT/95VM
  • Inmarsat Fleet Broadband FB250 (JUE-250)
  • GPS Navigator (JLR-7700MK2)
  • GPS receiver (JLR-4330/4331)

 For detailed information on each equipment, please click here.


Please contact our sales department at  for further information.

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