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
Gloria Marconi Gloria Marconi Gloria Marconi (born 31 March 1968) is an Italian long-distance runner. She was born in Florence. On the track she finished fifth in the 5000 metres and 24th in the 10,000 metres at the 2002 European Championships. She became Italian 5000 metres champion in 2002 and 2004, and 10,000 metres champion in 2003 and 2006. She became indoor 3000 metres champion in 2002. Her personal best times were 4:25.85 minutes in the 1500 metres, achieved in 1998; 9:04.80 minutes in the 3000 metres, achieved in July 2004 in Ferrara; 10:27.72 minutes in the 3000 metres steeplechase, achieved in