Marconi National Historic Sites of Canada Marconi National Historic Sites of Canada The Marconi National Historic Site and the Marconi Wireless Station National Historic Site are two National Historic Sites of Canada located on Cape Breton Island, Nova Scotia, Canada. Both sites commemorate the efforts of Guglielmo Marconi to transmit transatlantic radio signals between North America and Europe in the first decade of the 20th century. The two sites are located within approximately of one another, and are connected by the Marconi Trail. Signal Hill in St. John's, Newfoundland and Labrador is another National Historic Site related to Marconi's work in Canada. Signal Hill was designated,
History of radio changing its software program. Digital transmissions began to be applied to broadcasting in the late 1990s. Around the start of the 20th century, the Slaby-Arco wireless system was developed by Adolf Slaby and Georg von Arco. In 1900, Reginald Fessenden made a weak transmission of voice over the airwaves. In 1901, Marconi conducted the first successful transatlantic experimental radio communications. In 1904, The U.S. Patent Office reversed its decision, awarding Marconi a patent for the invention of radio, possibly influenced by Marconi's financial backers in the States, who included Thomas Edison and Andrew Carnegie. This also allowed the U.S. government