The UK Navtex transmitters were until at least relatively recently still maintained by British Telecomm. However, Portpatrick for one has had new transmitters installed so I'm not sure who is looking
Hello all, Unless someone is mucking about, John's "T T T CQ CQ CQ" signal would be transmitted by a marine coast station. TTT was/is sent on 500 kHz to announce a navigation or gale warning which wo
Hello J.B. The UK Coast Guard is MF and VHF only with R/T, DSC and Navtex. Other than for military traffic, I don't think there are any HF marine transmissions at all from the UK these days, although
During my sea-going days it was quite common for marine R/T stations to transmit a loop tape for a period when a ship called so that the ship's R/O could accurately tune his SSB receiver for link cal
Many thanks for putting me right. Probably thinking of WCC. Ian Ocean Gate is in New Jersey, not Cape Cod (which is in Massachusetts). http://wikimapia.org/4673741/AT-T-High-Seas-Service-Radio-Statio
Wonder if this would help. It's a free BBC document on the estimation of LF/MF broadcast service areas. There are graphs for the 200 KHz to 1500 KHz region for differing ground conductivities. It's a