On Tue, 07 Feb 2012 21:40:22 +0000, Stephen Furley
wrote:




On 7/2/12 21:07, in article , "Roland Perry"
wrote:

In message , at 20:44:11 on Tue, 7
Feb 2012, Stephen Furley remarked:
The second picture on this page:

http://www.subbrit.org.uk/sb-sites/s...o/index2.shtml

Shows a tuning coil at Rugby, which I think was the one for the time signal.
Low frequencies tend to require large coils, but I've never seen anything
like this.

It seems to say that was for the 16KHz submarine transmissions, but MSF
is on 60KHz. (Or is the former a typo?)

I don't know; I seem to remember that it said that the time signal was the
only thing still (then) being transmitted from Rugby, but it isn't totally
clear whether this coil was for he time signal, or for some other service by
then ceased. Was there anything transmitted on a lower frequency than the
time signal?

Down to 11.9 kHz :-
http://www.smeter.net/stations/vlf-stations.php
currently 19.6kHz in Cumbria ("Combria") for the UK

Rugby used to have 16kHz :-
http://www.youtube.com/watch?v=Unlg2gY2Zrs
http://www.subbrit.org.uk/sb-sites/s...io/index.shtml