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电台提供更好的位置。灯塔和浮标管理局（英语：Lighthouse and Buoy Authority）、电报管理局（英语：Telegraphy Administration）、贸易和工业部（英语：Ministry of Trade and Industry）和挪威极地研究所（英语：Norwegian
Submarine Telegraphy - Great Eastern. www.atlantic-cable.com. [2020-08-05]. （原始内容存档于2020-07-31）. History of the Atlantic Cable – Submarine Telegraphy – Daniel
drahtlose Telegraphie" (The Strassburg experiments on directed wireless telegraphy), Elektrotechnische und Polytechnische Rundschau (Electrical technology