[ntp:questions] best gps receiver for time synchronization

Richard B. Gilbert rgilbert88 at comcast.net
Tue Mar 10 15:44:35 UTC 2009

jack wrote:
> Hi everyone,
> First of all, I thank you for all your response.
> I understand the best solution would be using an IRIG board and that's
> what we had been using. We are now trying to make our product more
> compact by using a small single board PC with no RS 232 or PCI slot
> (no slot at all). Currently I am using GPS antenna with a USB
> connection.
> I also understand that if I can get a small PC with one genuine RS232,
> I can use Dave Hart's solution as tested by David. I will try to my
> best to steer the project towards this direction.
> Right now, I am trying to find the best GPS antenna that outputs at a
> consistent pace (better if the output can be configured so I only
> receive time stamps). Any recommendations wrt that?
> Thanks again.
> Jack

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.

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