Re:Which clock to trust?

dmbrierley@taz.dra.hmg.gb
Mon, 14 Sep 1998 15:07:05 +0000

> You can access the Master Clock via the Web, at URL:
> http://tycho.usno.navy.mil
>
>There are links there to third-party software to synch your 'pooter 
> to one of the 25 or so NTP servers.  One that I use is AtomTime.  
> Configure it with the address of the closest NTP server and you'll 
> have Master Clock time accurate to better than a millisecond!

I've been following this thread, and I fail to see how anyone can get
an accurate time over the Web, with uncertain delays in transmission 
and nodes.  Either a radio signal or the 1-900 number is preferable.

I bought a $25 alarm clock in the UK to receive Rugby on 60kHz.  
The internal clock is updated once an hour, but for an instant update 
you can push a button at any time.  I still prefer audible pips which 
we can receive from Moscow on 4.996 and 9.996MHz for 20 minutes every 
hour.  The liquid crystal display of the alarm clock takes about 0.05 
secs to register.

David Brierley
Malvern, Worcestershire, UK
Station 2675, 52.1358N, 2.3264W, 70m