From https://ics-cert.us-cert.gov/sites/defa ... S_2019.pdf:
In the GPS protocol, the week number field is a ten bit value. So every 1024 weeks it will return to zero.
Week 0 is 5 January 1980. And 21 August 1999. And will be 6 April 2019.
So don't be surprised if your GPS will display the wrong date next year.
Edwin
GPS protocol: The next week number rollover next year
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Re: GPS protocol: The next week number rollover next year
Geepers! The geocaching community may well experience Y2K type hysteria on the lead up to April 6th next year!
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Re: GPS protocol: The next week number rollover next year
Crikey. I use GPS a lot on sites for clock syncing. Might have to do some reading upMavEtJu wrote:From https://ics-cert.us-cert.gov/sites/defa ... S_2019.pdf:
In the GPS protocol, the week number field is a ten bit value. So every 1024 weeks it will return to zero.
Week 0 is 5 January 1980. And 21 August 1999. And will be 6 April 2019.
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Re: GPS protocol: The next week number rollover next year
I'm sure the firmware/software in GPS units and smartphones managing the GPS chip and functions will take care of this.