[time-nuts] Can anyone help?
John Ackermann N8UR
jra at febo.com
Sat Oct 28 13:00:11 EDT 2006
Hi Paul --
You can go down as deep a rathole with internet timing as we do with
atomic clocks :-), but in very gross terms if your computer is running
the "NTP" time daemon you can keep time to better than 100ms pretty
easily. With a broadband connection and good choice of servers, a few
milliseconds is possible.
Earlier versions of Windows did not have a good timekeeping system, but
I understand that the latest service pack of XP is much improved; I
don't know how it compares with the "real" NTP program though.
ABSA Email said the following on 10/28/2006 12:32 PM:
> Hi there,
> I need some advice.
> I'm not into the nano-second accuracy region, so this could well be
> considered OT.
> 1. I have a Gent's mechanical clock, and I check it by my computer clock. To
> set the computer clock, I use the built-in synchronisation to
> time.windows.com, or time.nist.gov. How accurate can this be by the time
> that the synchronising signal reaches my computer in South Africa? Are
> there any time stations nearer to me than USA? Does the time signal update
> itself as it travels the Internet to me?
> 2. This is for frequency measurement. Can anyone recommend a divide-by-ten
> counter to use as a pre-scaler up to 500 MHZ?
> Paul Galpin
> South Africa
> time-nuts mailing list
> time-nuts at febo.com
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