Yo Frank! On Thu, 5 May 2016 18:53:42 -0400 Frank Nicholas <fr...@nicholasfamilycentral.com> wrote:
> This is the “/etc/ntp.conf” I used when I ran my NTP server on a > Raspberry Pi with the Adafruit breakout board (same as current hat). > I list it because of the “fudge” line. This was commonly accepted as > the proper fudge settings, especially for time2 - 0.350: I use the 28 refclock, you the 20. I think for our purposes time1 and time2 are the same? Basically the NMEA fudge. I use a time1 of 0.480 for my Ultimate GPS HAT. Just about in the middle of my 30 to 70 milliSec jitter. > explains # these settings > # Slightly modified, but credit to: > # Paul Kennedy @ > (http://www.raspberrypi.org/phpBB3/viewtopic.php?f=41&t=1970&start=80) > server 127.127.20.0 mode 17 minpoll 3 iburst true prefer I find a short poll leads to a more unstable result. Have you tried a longer poll? Mode 17 is 9600? Up that if you can. > # pool.ntp.org maps to about 1000 low-stratum NTP servers. Your > server will # pick a different set every time it starts up. Please > consider joining the # pool: <http://www.pool.ntp.org/join.html> > server 0.debian.pool.ntp.org iburst > server 1.debian.pool.ntp.org iburst > server 2.debian.pool.ntp.org iburst > server 3.debian.pool.ntp.org iburst You'll do better if you hand pick some close chimers. There is some bad shit in the pool, and you may be using something from Singapore or Bangalore. If you must pool, at least use a US pool. Like: 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 RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588
pgpnr7Az1kKyv.pgp
Description: OpenPGP digital signature
_______________________________________________ devel mailing list devel@ntpsec.org http://lists.ntpsec.org/mailman/listinfo/devel
