On Sun, 25 Jan 2004 18:33:26 -0000, "Fleetie"
wrote:

"Jim Lesurf" wrote
I suspect that GPS would have too poor a short-term phase stability for
'direct' use due to atmospheric propagation errors. However they may use it
for medium and long term reference checks on the 'local' clock used at any
antenna station. Countries like the USA, UK, etc transmit clock signals by
radio as well for these purposes. Rugby MSF is the one most people know
about and the long term accuracy of this should be good. There are loads of
these all around the world, though, often at a few MHz IIRC.

Isn't Rugby at some very low frequency like 60 kHz?

Yes.
--

Stewart Pinkerton | Music is Art - Audio is Engineering