[ntp:questions] Second attempt at GPS-18 based NTP server

David Lord snews at lordynet.org
Sun Feb 5 02:46:43 UTC 2012


David Lord wrote:

....


> On NetBSD-5 with ntpd 4.2.6p5 the default is 64s.
> 
> I've just added the "minpoll 4 maxpoll 4" back to my ntp.conf
> as it could reduce the 30 usec offset blips I get when logs are
> rotated.
> 
> On my two pool servers I have named internet servers with
> "minpoll 8 maxpoll 10 iburst" which gives reasonably fast
> recovery from internet outages.

 From the first peer summary it appears to have made very
little difference vs values from previous 20 days.

offset   mean     rms    max                       dist  disp
before  0.000   0.004    0.033-0.040 (avg 0.0357) 0.928 0.928
after   0.000   0.004    0.032                    0.354 0.236

If it's accessible, I might try the suggestion of surrounding
the xtal with polystyrene foam.


David



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