Parabolic antenna be exploited. Italian radio pioneer Guglielmo Marconi used a parabolic reflector during the 1930s in investigations of UHF transmission from his boat in the Mediterranean. In 1931 a 1.7 GHz microwave relay telephone link across the English Channel using 10 ft. (3 meter) diameter dishes was demonstrated. The first large parabolic antenna, a 9 m dish, was built in 1937 by pioneering radio astronomer Grote Reber in his backyard, and the sky survey he did with it was one of the events that founded the field of radio astronomy. The development of radar during World War II provided a great
Marconi Wireless Telegraph Company of America of United Wireless' tangible assets, which in turn on March 29, 1912 were sold by the parent company to American Marconi. It would later be alleged that this had unfairly benefited some British investors, in what came to be known as the Marconi scandal. The acquisition would prove to be a tremendous boost to American Marconi's fortunes, and the company boasted that "There is now nothing in the way of Marconi becoming the only system of commercial importance in the world." Recently passed laws required U.S. passenger ships to carry radio equipment, and American Marconi's near monopoly allowed it to