[time-nuts] Z3801A gps week rollover

Peter Vince petervince1952 at gmail.com
Thu Sep 8 18:51:09 EDT 2016


That makes sense - thanks guys!

     Peter


On 8 September 2016 at 22:53, Hal Murray <hmurray at megapathdsl.net> wrote:

>
> petervince1952 at gmail.com said:
> > Can I just ask why the Z3801As are  having week roll-over problems now -
> I
> > didn't think it was 2048 weeks since GPS "zero-hour" until late on the
> 6th
> > of April 2019?
>
> It's probably 1024 weeks since a date was built into the firmware.
>
> It's like the year 2000 problem.  If you aren't worried about old people
> and
> I tell you somebody was born in 03, you can assume that's 2003 rather than
> 1903.  For GPS, a handy value for the cutoff is the date the firmware was
> built.  Any date that looks like it is older than the firmware is probably
> off by a rollover.
>
>
> --
> These are my opinions.  I hate spam.
>
>
>
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