Offshore radio acquired the yacht Ceto and installed radio equipment. Unfortunately, the apparatus could not operate properly overboard, the signal being heavily affected by the climate conditions. The transmitter was then replaced by Siemens loudspeakers and the Ceto toured England "broadcasting" gramophone records interspersed by advertising. Unauthorized offshore broadcasting stations operating from ships or fixed platforms in the coastal waters of the Northern Sea first appeared in 1958. There were as many as eleven such stations in the mid-1960s. One of the most popular offshore radio broadcasts in Europe came from Radio Caroline, which developed out both of the strict broadcasting regulations
Radio City (pirate radio station) in the 1960s. In real life interviews on pirate stations would have been taped on land rather than exposing musicians to hazardous and expensive sea crossings. An episode of Patrick McGoohan's "Danger Man" (known in the U.S. as "Secret Agent Man"), "The Not-So-Jolly Roger", was filmed on Red Sands Fort in early 1966 when "Radio 390" was broadcasting (shut down a year later). The episode was broadcast on 4 July that year. Radio City (pirate radio station) Radio City was a British pirate radio station broadcasting from Shivering Sands Army Fort, one of the abandoned Second World War Maunsell Sea