challenges and strategies in radio spectrum management

Work began in earnest in the spring of 1954, and this first Regency transistor radio was in stores for the Christmas season later that year. The Regency ... The start of radio broadcasting in the United States is generally traced to 1910, when a program was produced from the Metropolitan Opera House in New York City ... May 26, 2020 ... Lamarr's path to inventing the cornerstone of Wi-Fi began when she heard about the Navy's difficulties with radio-controlled torpedoes. NIHF Inductee Guglielmo Marconi invented the radio by building equipment to transmit electrical signals through the air from one end of his house to the ... Not surprisingly, sales soared, as did radio listenership. In 1933, the VE301 accounted for about half of the total radio sales in Germany. The following year, ... The station's creator and owner, an entrepreneur, inventor, and manufacturer named Powel Crosley Jr. ... He agreed to buy his nine-year-old a radio, but when he ... While newspapers have been around for hundreds of years following Gutenberg's printing press invention, radio was the first mass media form of communication ... Oct 5, 2018 ... By the time I was born, radio had been around for over 20 years, but we didn't have television yet. In the evenings we had a leisurely dinner, ... In the mid-1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance ... Introduced in January 1946, the 2-Way Wrist Radio was an invention of industrialist Diet Smith's son Brilliant. Like ... when he was abducted and held hostage by ...