Shortwave Enthusiast and author Daniel P. Ratcliff provides a comprehensive look at international broadcasting and shortwave radio transmissions. This curated collection covers the history & basics of shortwave radio and it serves as an excellent resource guide. The Italian inventor and electrical engineer, Guglielmo Marconi is considered the father of the radio. Shortwave radio is used for long distance communication by means of skywave or skip propagation, in which the radio waves are reflected or refracted back to Earth from the ionosphere, allowing communication around the curve of the Earth.