I use a Truetime NTS-100 for my NTP server. Just scanned my network of Windows machines at home, all using MS NTP Client. 3-Vista, 2-2003 Server, 1-XPSP2. Worst 11 ms, average variance is 2ms.
Jack -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Keith Payea Sent: Friday, January 04, 2008 11:34 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] FW: sync computer clock ticks The NTP built into Windows is very poor. A couple of the versions are not even compliant with the standard, and some servers will reject their requests. You have to use better client software, at least for your master controller. The CMOS clock only matters when you lose power. NTP should only use it once at start-up as a sanity check. Keith -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Moisan Sent: Friday, January 04, 2008 9:13 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] FW: sync computer clock ticks -----Original Message----- From: David Moisan Sent: Friday, January 04, 2008 11:43 AM To: Discussion of precise time and frequency measurement Subject: RE: [time-nuts] sync computer clock ticks -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Ackermann N8UR Sent: Friday, January 04, 2008 9:17 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] sync computer clock ticks >Challenges may be (a) in the Windows world, earlier versions (prior to >some SP level of XP) have inherent limitations on timekeeping accuracy, I have considerable experience with Windows networks. Windows 2000 time clients are the worst, XP is better and Server 2003 best of all. Vista and Windows 2008 are based on the 2003 code. My workplace is a public access TV station and our biggest challenge is getting consistent time without being able to pay for nice things like IRIG displays or GPS clocks. It doesn't help that our master controller is Windows 2000 based with a flaky CMOS clock that was caused by renovations in the room it was installed in. Symmetricom has a app for Windows networks, LMCheck, that can check for variance. http://dtdocs.ntp-systems.com/software/domaintime/instructions/tools/lmcheck .asp _______________________________________________ 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. _______________________________________________ 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.
