Pirate station "Radio Caroline" went on the air in March 1964. It was anchored in waters off the United Kingdom. The station broadcast from a variety of vessels into the 1980s on medium wave. Transmitter strength over the years ranged from 10 kilowatts to 50 kilowatts. Its initial frequency was 199 meters (1485/1520 kHz). Broadcasts later moved to 259 meters (1169/1187 kHz).
