[time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time
robkimberley at btinternet.com
Wed Oct 11 15:54:03 UTC 2017
I'm using the Meinberg NTP Distribution here with their NTP Monitor prog on Win10-64, and two GPS NTP servers.
Config settings: -
server 192.168.1.120 iburst minpoll 4 maxpoll 5
server 192.168.1.121 iburst minpoll 4 maxpoll 5
Consistent sub millisecond results. I've also found that Win10 actually performs way better than Win7.
From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Mike Cook
Sent: 11 October 2017 16:26
To: Chris Wilson; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time
I have Win7-64 and my LH and system time are the same (with a very short delta of < 0.2s probably due to their respective window update time).
I use the Meinberg disturb of NTP. My client’s offset from the paris observatory is less than a millisec.
Maybe you should check your NTP status and see what offset you get from a known good source with ntpdate -b -d <name or IP>.
> Le 11 oct. 2017 à 13:29, Chris Wilson <chris at chriswilson.tv> a écrit :
> 11/10/2017 12:24
> Probably a simple answer, but I am curious as to why my PC clock
> which is set by NTP on Windows 7 64 bit OS is ahead of Lady Heather's
> time, locked to a Trimble Thunderbolt by about half a second
> (guesstimate..) I caught a screen shot of the discrepancy just now,
> it's at http://www.gatesgarth.com/time.jpg
> I use NTP for low signal WSPR transmissions and a second out isn't the
> end of the world, if indeed something IS out. More academic
> than problematic, thanks
> Best Regards,
> Chris Wilson.
> mailto: chris at chriswilson.tv
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