Aspidistra (transmitter) - Wikipedia

Named after the Gracie Fields song "The Biggest Aspidistra in the World," the transmitter was operated during World War II by the British government's Political Warfare Executive for black propaganda and military deception against Nazi Germany. The Crowborough station housed additional medium- and short-wave transmitters designated ASPI 2, ASPI 3 and ASPI 4, though the name Aspidistra on its own always referred to the original ASPI 1 unit. After the war, the station passed to the Diplomatic Wireless Service and carried BBC External Service broadcasts to Europe until it closed in 1982.