[ntp:questions] best gps receiver for time synchronization

Hans Jørgen Jakobsen hjj at wheel.dk
Tue Mar 10 17:34:26 UTC 2009


On Tue, 10 Mar 2009 09:17:58 -0700 (PDT), jack wrote:
> I cannot switch to Linux because my main application runs only on
> Windows. It would take us a long time to port to Linux.
> If I can get to millisecond accuracy, I'd be happy.
>
> Jack
>
> On Mar 10, 11:56 am, Dave Hart <daveh... at gmail.com> wrote:
>> On Mar 10, 3:44 pm, "Richard B. Gilbert" <rgilber... at comcast.net>
>> wrote:
>>
>> > You might want to take a look at the work of Poul-Henning Kamp (PHK).
>> > He used Soekris 4501 single board computers together with a GPS receiver
>> > to make a highly accurate clock.  This was long enough ago that most of
>> > the hardware he used is no longer available new but it might give you
>> > some ideas.
>>
>> Seconded.  FreeBSD will give you better timekeeping than Windows.  If
>> the difference between a few microseconds and a few hundred
>> microseconds is no problem, my recent Windows releases are fine.  But
>> if you're dedicating a small PC to the task, care about those
>> fractions of a millisecond, and can manage FreeBSD, it's the gold
>> standard for NTP.
>>
>> Cheers,
>> Dave Hart
FreeBSD is not Linux. Certainly not when talking timing.
/hjj
>




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