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In 1901 Marconi took on the most daring of his exploits - to communicate by wireless between England and North America, a distance of over 2000 miles. There is a wealth of literature about the event, with much attention as to whether he actually achieved it, and this has attracted a lively technical discussion and analysis over the years.

Finally in 2006-7 a concerted effort resulted in the Marconi Beacon Experiment using the skill and tenacity of amateur historians and amateur radio operators on both sides of the Atlantic when several committed historians of technology came together thousands of miles apart to think through and then implement this Beacon Experiment and related investigations to prove that he did what he claimed, that is he did receive and hear the letter “S”, the three Morse dots, near Cabot Tower on the hill overlooking St. John’s, Newfoundland transmitted from his Poldhu transmitter sited on the Lizard Peninsula in Cornwall, England. 

The results were published in the AWA Review, Volume 21 2008, by three authors - Joe Craig, Keith Matthew and Bartholomew Lee in a very detailed and comprehensive article which can be accessed here.