[time-nuts] ``direct'' RS-232 vs. RS-232 via USB vs. PPS decoding cards

Chris Albertson albertson.chris at gmail.com
Thu Feb 16 22:07:36 EST 2017


Yes,  that is the normal "best practice case".   But the OPand myself
some years go
both have a difference use case.     In this case no other machine
needs to know the time.
I only care about one computer.

The reason I used NTp back then and he is using it now is to calibrate
the rate of a real-time process running on that one computer.   In
this special case it makes sense to connect GPS PPS to the computer
and use no other source of time.



On Thu, Feb 16, 2017 at 10:58 AM, Gary E. Miller <gem at rellim.com> wrote:
> Yo Chris!
>
> On Wed, 15 Feb 2017 23:48:39 -0800
> Chris Albertson <albertson.chris at gmail.com> wrote:
>
>> An ntpd that is running as
>> strum one that has no other ntpd connected to it has VERY little to do
>
> That would be a marginal configuration.  I have yet to see a GPS that
> did not lose sat lock, or lep second, or UTC offset now and then.  Best
> practice is to have at least 3 other network chimers configured.
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
>         gem at rellim.com  Tel:+1 541 382 8588
>
>             Veritas liberabit vos. -- Quid est veritas?
>     "If you can’t measure it, you can’t improve it." - Lord Kelvin
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-- 

Chris Albertson
Redondo Beach, California


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