[UK-CONTEST] What's the time

[Peter Bowyer]

Depends how you're measuring 'internet time', and what the nature of
the ntp peers you're using  - I can show you a clock which keeps time
against a GPS within microseconds - this is, of course, a proper ntp
client, properly configured with multiple (pools of) peers. And it
doesn't run Windows....

'They' have had this working for years - no new effort needed. NTP is
very mature.

Peter

On 14/05/07, Bob Henderson <bob at 5b4agn.net> wrote:
> Peter,
>
> It's good to know they're making an effort but it's still just an estimate.
>
> I've monitored internet time versus GPS time over several months and have
> never yet seen them agree.  Internet time always seems to lag GPS time and
> by a variable amount.
>
> Not enough to make one risk missing the bus, of course. ;-)
>
> Bob, 5B4AGN
>
> ----- Original Message -----
> From: "Peter Bowyer" <peter at bowyer.org>
> To: <uk-contest at contesting.com>
> Sent: Monday, May 14, 2007 12:39 PM
> Subject: Re: [UK-CONTEST] What's the time
>
>
> > On 14/05/07, Bob Henderson <bob at 5b4agn.net> wrote:
> >> Internet time is ok, although accuracy depends on internet latency, which
> >> is
> >> a variable.
> >
> > Actually it doesn't - the ntp protocol calclulates and monitors the
> > latency involved in the responses it receives from a remote server and
> > adjusts accordingly.
> >
> > Peter G4MJS
> >
> > --
> > Peter Bowyer
> > Email: peter at bowyer.org
> > _______________________________________________
> > UK-Contest mailing list
> > UK-Contest at contesting.com
> > http://lists.contesting.com/mailman/listinfo/uk-contest
> >
>
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-- 
Peter Bowyer
Email: peter at bowyer.org