[time-nuts] NAVSTAR proteus GPS time and frequency unit

[Rob Sherwood.]

Thanks.  What I intended to ask is why the problem exists, not implying that it doesn't matter. Rob, NC0B

Sent from my iPad

> On Nov 8, 2015, at 6:30 PM, "paul swed" <paulswedb at gmail.com> wrote:
> 
> 
> 
> 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.
> Regards
> Paul
> WB8TSL
> 
>> 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>
>>> wrote:
>>> 
>>> 
>>> 
>>> 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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