On Mon, 19 Jan 2009 17:00:38 +0000, Howard Neil wrote
(in article ) :

Radio propagation is very much a black art. My wireless router and the
signals from the various sensors from my weather station don't have any
problems and both the router and the weather station main unit are
alongside both computers. It is only the clocks/watches that have the
problem and that is repeatedly demonstrable.

You are comparing two very different communication systems.

WiFi devices communicate at SHF frequencies of a few GHz with wavelengths of
a few centimetres. The time signals from Anthorn et al are in the VLF band
with frequencies around 60 kHz and corresponding wavelengths of several
kilometres. It's hardly surprising that they have somewhat different
properties.

--
Mike Lane
UK North Yorkshire