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Subject: Re: Radio Synchronized Clock
From: Brian Whatcott (inet@XXX.XXX)
Date: Thu Feb 28 2002 - 13:07:33 EST
I found the web site for the offering I mentioned -
<http://www.Klockit.com/>
and discovered their current price for a complete wall clock
of this kind is $16 + PP.
The Cambridge URL for Markus Kuhn which you mentioned below,
suggests that Fort Collin's range would be about 2000 nm by comparison
with the German LF clock transmitter's range (2000 km) & ERP
on the same frequency.
Thanks
Brian W
At 09:58 AM 2/28/02, you wrote:
>I think these clocks are tuned to one particular radio station, so by
>taking
>only one clock you automatically limit the region of the earth in which
>you have accurate time available to a few thousand miles from the station.
>Depending on your intended cruising area
>this might be acceptable. On the other hand I think it is less elegant,
>but that is a consideration of no practical importance.
>
>BTW, I ran into http://www.cl.cam.ac.uk/~mgk25/lf-clocks.html, which might
>be of use to you.
>
>
>_Steven.
>
>-----------------------------------------------------------
>Steven Wepster wepster@XXX.XXX
> tel +31 30 253 1531
>Mathematisch Instituut
>Universiteit Utrecht
>PO Box 80.010
>3508 TA Utrecht
>The Netherlands
>===========================================================
>
>On Thu, 28 Feb 2002, Brian Whatcott wrote:
>
> > I was browsing a clockmaker's catalog yesterday, and saw the range of
> > mechanical and quartz clock movements on offer. I was surprised to see a
> > clock module not much bigger than the quartz clock module with which I
> > expect you are familiar.
> > I knew the quartz modules can be had for $10, but I was surprised to see
> > the radio clock module was on offer at $24 (year 2000 prices).
> >
> > The recent thread querying the effective range of such devices came to
> > mind. I did not take much notice at the time. But a clock that will hold
> > 1 second accuracy indefinitely and powered by one C cell
> > has its attractions.
> > I notice the proviso that the clock face be radio transparent, so I suppose
> > that a metal cabin interior would not be practical. Has anybody sailed
> > with one of these devices?
> >
> > Brian Whatcott
> > Altus OK Eureka!
> >
Brian Whatcott
Altus OK Eureka!
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