Date rollover for GPS systems

[cwog]

See
https://www.theregister.co.uk/2019/02/12/current_gps_epoch_ends/

for details of a date rollover on GPS system that might break the system for you.

[Kremmen]

They seem to be questioning older devices from non mainstream companies produced before 2010.
_________________
DashCam:
Viofo A119 V3

[PhilHornby]

[MaFt]

I've been trying to contact Garmin about this to see if it's an issue with theirs. I know TomTom have a support page where you can enter your serial number and find out if there's an update or if it will need a replacement.

I would hope that with Garmin's history in GPS as well as aircraft and sea navigation, and their previous survival after the last one in 1999, that they'll be using the 13-bit version and not have an issue... Still, this is just speculation.

TomTom's link is mentioned in this post: https://www.pocketgpsworld.com/modules.php?name=Forums&file=viewtopic&t=98799

[dales]

[Kremmen]

The Y2K issue could raise its head again around 2050 if any old systems are still around.

The system I worked on went down the lines of ......

If YY is less than 50 then CC = 20, else CC = 19.

So the old YYMMDD became CCYYMMDD where CC was a simple calculation.
_________________
DashCam:
Viofo A119 V3

[cwog]

The date accuracy may effect accuracy of predicting satelllite position and time delay for calculating posiion -

but
hey
what do I know - I referred to the article because El Reg always has interesting tech news

[PhilHornby]

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