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From: Mills@udel.edu
Newsgroups: comp.protocols.time.ntp
Subject: Re:  Cheap Radio Clocks (was Re: CTS-10 PC clock board)
Message-ID: <9010310057.aa26622@huey.udel.edu>
Date: 31 Oct 90 05:57:25 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: inet
Organization: The Internet
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Philip,

Sorry for the delay in this response. Your clock sure has the virtue
of being undear. An accuracy of 700 us is not too shabby, considering
the best WWVB clocks known here provide resolution at the 100-us
regime. If you are within the groundwave contour of Rugby, you should
be able to better that to a few usec and, if not, probably can't
better 50 us unless you are very careful in the times of observation.
However, I have concluded that, for accuracies down to the usec, that 
LORAN-C is the target of choice. I have just designed a receiver
for that, intended as a PC peripheral, but have not yet begun the build.

Dave