Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 4 replies
  • Subscribers 16 subscribers
  • Views 408 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Sat Nav GPS week number roll over.

Sparkingchip
An email from Tom Tom offering me a “good deal” on a new Sat Nav


The GPS Week Number Rollover (WNRO) occurs every 19 years, with the next roll over taking place on 6 April 2019. Similar to odometers in older cars rolling over from 99,999 km to 0, the GPS WNRO is the resetting of the GPS calendar back to 0. 


When the calendar resets, it can cause a miscommunication between GPS satellites and GPS receiver chips. As a result, some chips in satnavs will lose the ability to process certain functions. 


What does this mean for you? It’s time to check your satnav. Depending on your device, you may need to update or upgrade.


So that is why I cannot set the the time on my Tom Tom Sat Nav!


Andy
Parents
  • 0
    The WNRO occurred on April 6th at midnight, so four weeks ago. If you have not noticed any problems yet then it probably means you don't need a new Sat Nav. I remember there was a big fuss last time in late August 1999 but very few people seemed to even notice back then, though of course there were fewer with Sat Nav at the time.
Reply
  • 0
    The WNRO occurred on April 6th at midnight, so four weeks ago. If you have not noticed any problems yet then it probably means you don't need a new Sat Nav. I remember there was a big fuss last time in late August 1999 but very few people seemed to even notice back then, though of course there were fewer with Sat Nav at the time.
Children
No Data

Community Rules & Guidelines