[ntp:questions] Trying to use Dimension 4 time keeper

unruh unruh at invalid.ca
Mon Sep 9 00:42:47 UTC 2013


On 2013-09-08, W. eWatson <wolftracks at invalid.com> wrote:
> > Some settings that may be of interest.
> >
> > NTP servers
> > server 0.us.pool.ntp.org iburst
> > server 1.us.pool.ntp.org iburst
> > server 2.us.pool.ntp.org iburst
> > server 3.us.pool.ntp.org iburst
> >
> > ntp.drift contains
> > 24.793
>
> What about the above?  Does the user set the drift, and, if 24.793 is in 
> seconds, why so big?

It is in PPM (parts per million) Ie, it loses/gains 24.7 microseconds
every second. (or about 2 seconds every day )
The system determines and sets the drift.

>
> > Since the computer is obviously linked to the net, it is not necessary
> > to go out there to check the time. You could do it against one of your
> > local machines or whatever via the net.
>
> How would that work?

Log on remotely and display the time?
Have the computer send its time to you every day?

> >
> > What time accuracy do you need?
>
> 0.1 seconds.
>
That is very easy off the net. It is doable with a nmea gps receiver. It
is trivial with a GPS-PPS.




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