11.253MHz USB is a regular Volmet here in Australia, operated by the
British Royal Air Force at St Eval on the north Cornwall coast, it's 24 hours, callsign is "MKL" and also known locally as "Military One".
If you want to have a look at it (nice pics) go to:
www.alancordwell.co.uk/Legacy/hfradio/steval.htmlClick on "frequencies" at the bottom of the page content for some excellent stuff on UK HF marine, aviation etc.
There was another site in the UK that photos of the transmitters and also data on the antenna configuartion etc, but forgotten where I found it some time ago. It also included a piece from a retired operator on what it was like to work there.
