FM broadcasting
VHF Radio waves do not travel far beyond the visual horizon, so reception distances for FM stations are usually limited to 30–40 miles (50–65 km) They can also be blocked by hills or buildings.
Clarence D. Tuska
Under the provisions of the Radio Act of 1912, most amateur stations were restricted to operating on a wavelength of 200 meters (1500 kHz), which effectively limited their transmitting range to about 25 miles (40 kilometers). In the spring of 1914, Hiram Percy Maxim began promoting the idea of a national organization of amateurs that would transmit messages over greater distances by organizing relays. This resulted in Maxim's incorporation of the American Radio Relay League, with Maxim as president, and Tuska the organization's secretary. At this time Tuska also resigned from the Hartford Radio Club.