Shortwave radio were required. It was also difficult to beam the radio wave directionally with long wave, resulting in a major loss of power over long distances. Prior to the 1920s, the shortwave frequencies above 1.5 MHz were regarded as useless for long distance communication and were designated in many countries for amateur use. Guglielmo Marconi, pioneer of radio, commissioned his assistant Charles Samuel Franklin to carry out a large scale study into the transmission characteristics of short wavelength waves and to determine their suitability for long distance transmissions. Franklin rigged up a large antenna at Poldhu Wireless Station, Cornwall, running on
Enrico Marconi Enrico Marconi Enrico Marconi, known in Poland as Henryk Marconi (7 January 1792 in Rome – 21 February 1863 in Warsaw), was an Italian-Polish architect who spent most of his life in Congress Poland. Initially he was taught by his father Leander, later on, between 1806 and 1810, he studied both at the University of Bologna and at the Academy of Fine Arts of Bologna. In 1822 he was commissioned by general Ludwik Michał Pac to complete his palace in Dowspuda (then in Congress Poland, now in north-eastern Poland). He settled in Warsaw, where from 1827 he worked for the