Soldatensender Calais

This transmitter had lain unused at the factory after the United States Federal Communications Commission imposed a 50 kW power limit on all U.S. stations, and so RCA was glad to sell it overseas and the British Secret Service bought it for £165,000.

Codenamed Aspidistra, it was installed in a huge, underground bunker near Crowborough in Sussex, England, where it was briefly the world's largest medium wave station, perfect for deceptive "black" operation.

Unlike its predecessor Gustav Siegfried Eins, the programmes were live from the purposely-built broadcast studio at Milton Bryan in Bedfordshire[3] and presented by Agnes Bernelle using the codename "Vicky".

Soldatensender's broadcast was repeated in print the next day in the PWE/OSS Nachrichten für die Truppe air-dropped newspaper for German troops.

Other clandestine radio stations operated by the Political Warfare Executive and its forerunners during the war included Das wahre Deutschland (G.1), Sender der Europäischen Revolution (G.2), Gustav Siegfried Eins (G.3), Wehrmachtssender Nord (G.5) and the German Priest (G.7) station.