Offshore radio in England in the 1960s as well as the fact the major labels had left little to no airtime to less established acts. The Radio Caroline name was used to broadcast from international waters, using five different ships of three different owners, from 1964 to 1990. Radio Caroline was the brainchild of Ronan O'Rahilly, who dreamed up a way to air music by "unestablished" rock and roll artists Other well-known stations of the period were Radio Atlanta, Radio London, Radio 270 (broadcasting of the coast of Filey, Yorkshire) Radio 390, Radio Scotland, Radio Northsea International and Radio City. Most offshore
Pirate radio in local telephone directories. Where actual seafaring vessels are not involved, the term "pirate radio" is a political term of convenience as the word "pirate" suggests an illegal venture, regardless of the broadcast's actual legal status. The radio station XERF located at Ciudad Acuña, Coahuila, Mexico, just across the Rio Grande from Del Rio, Texas, US, is an example. While Mexico issued radio station XERF with a license to broadcast, the power of its 250 kW transmitter was far greater than the maximum of 50 kW authorized for commercial use by the government of the United States of America. Consequently,