From: Chris Albertson
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Simply using NTP on Windows will force the clocks to be without about .002
seconds. That is about as good as you can do using Windows.
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.. although these performance graphs suggest that 50-250 microseconds can be
achieved on Windows when run as stratum-1 servers with PPS syncing:
http://www.satsignal.eu/mrtg/performance_ntp.php#windows-stratum-1
Performance /does/ vary with different Windows versions, and when you add in
LAN, Wi-Fi, or even WAN synching your 2 milliseconds figure is not
unreasonable, and it can be worse as seen on at least one PC here (portable
Mercury synced over Wi-Fi).
http://www.satsignal.eu/mrtg/performance_ntp.php#windows
Rex, there is little or no extra cost in using NTP as a stratum-1 server,
the GPS receivers are readily available at low cost, and you may have a COM
port header on your motherboard even if there is no COM socket at the rear.
Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: [email protected]
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