[time-nuts] NAVSTAR proteus GPS time and frequency unit
paulswedb at gmail.com
Sun Nov 8 19:07:53 EST 2015
Because the roll over is a pain.
Thats good engineering if they checked that far.
What happens if you have a receiver that doesn't handle it correctly is you
do not tend to get satellite lock because the dates all wrong.
You cheat this "The pain part" by figuring out what the date should have
been by subtracting 1024 weeks. Seems easy right. Nope.
That works for the old austron. But as I say serious thinking. There are
some online tools that help. But it all gets old very fast.
On Sun, Nov 8, 2015 at 4:01 PM, Rob Sherwood. <rob at nc0b.com> wrote:
> Why is this an issue?
> Sent from my iPad
> > On Nov 8, 2015, at 1:00 PM, "Brendan Giles" <brendan_giles at hotmail.com>
> > I was the project manager who was in charge of the NAVSTAR proteus GPS
> time and frequency unit.The two GPS rollover dates 1999/2018 were tested in
> product test plan. Also various dates were checked upto 2037 for the PC
> output message.
> > Brendan Giles
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