Hi If you are looking at pool service, the first question would be how you connect to the backbone.
If you are running something asymmetric (DSL / cable modem) you already have enough of an offset that it alone it far bigger than any other error in your system. Even with fancier connections, asymmetry can be an issue. Next thing to look at is how heavily loaded your connection becomes. A lot of links have limited bandwidth in both directions, but traffic loads that are much heavier in one direction. It does not take much single direction buffering to take that up to a significant level. Bob > On Feb 24, 2016, at 9:22 AM, Neil Green <[email protected]> wrote: > > I currently operate a stratum 1 NTP server in the NTP pool using a U-Blox > Max-7Q GPS module with PPS attached to, variously, a Raspberry Pi via GPIO or > a Celeron mini PC via serial DB-9. The machine does nothing but serve time to > the pool. Operating systems of choice are Debian or FreeBSD. > > > What would be my next step up be, hardware-wise, in terms of improving > precision, stability, etc? A GPSDO? Budget is limited as far as these things > go - about £150 UK/$210 US. > > > I appreciate this is basic stuff compared to the usual discussions but this > doesn't seem the right question to ask on the NTP lists. Any help > appreciated. Thanks. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
