Transcript

The History Of Radio

The HISTORY of RADIO Radio is one of the most important technological inventions in recent history, and paved the road for advanced communication, exploration, entertainment, and music discovery. Since its birth in the late 1890s, radio has evolved to fit the needs of the times. We trace its journey from Tesla to Turntable.fm. BIRTH OF RADIO Tesla applies for two co crucial U.S. radio patents. 1892 E Reginald Fessenden sends a 9 weak transmission over airwaves. MARCONI TRANSATLANTIC Guglielmo Marconi built a wireless system capable of transmitting signals at long distances. Marconi conducts the first successful transatlantic radio communication. 1898 1980 TESLA Transmission of radio frequency energy is frequently exhibited in Nikola Tesla's experiments. He proposes that this could be used O) 1895 1981 as a means of telecommunication. The Poulsen-Arc radio transmitter is invented.9 1985 1984 RADIO AUDIOCAST Fessenden uses an Alexanderson alternator and rotary spark plug transmitter to make the first radio audio broadcast. 1918 FLEMING VALVE REVERSAL OF FORTUNE John Fleming invents the vacuum tube diode that later helps Lee The U.S. patent office reverses the patent awarded to Tesla and awards Marconi with the patent for the invention of the radio. Some speculate it is due to his financial backer, Thomas deForest create the three-element vacuum tube called the Audion. The Audion is considered one of the most important developments in the history of electronics. 1986 Edison u The Wireless Ship Act requires all U.S. ships n travelling over 200 miles off the coast to be equipped with wireless radio. RADIO ARRIVES Amateur radio operators S experiment with frequency modulation or FM. on The government releases its control of all - patents, and the Radio Corporation of America (RCA) is established. 1928 1933 RADIO ACT The Radio Act of 1927 re-assigns stations to clear frequencies and makes radio stations operate in the public's interest. 1920 1938 FIRST RADIO STATIONS FIRESIDE CHATS Several radio stations claim to be People turn to the radio for the first public radio station. Some include KDKA Pittsburgh and 9XM University of Wisconsin. entertainment and comfort during the Great Depression. President Franklin D. Roosvelt becomes the first "radio III 1923 O The first radio news program is broadcasted. president." W1XOJ in Massachusetts becomes the first FM radio station. MARCONI'S PATENT FM RADIO 1938 The U.S. Supreme Court reverses the patent issued to Marconi, helping the U.S. government to avoid paying damages to the Marconi Company for patent use during World War I. Edwin Armstrong invents FM (frequency modulation) radio. FM provides static-free broadcasting and carries the full frequency range of sound perceptible to the human ear. 1948 INVASION FROM MARS CBS broadcasts Orson Welles adaptation of The War of the Worlds on a Halloween episode of the popular show Mercury Theatre on the Air. This caused panic among listeners who thought the alien invasion was real. 1958 1943 1933 RADID AND THE SPACE AGE The first amateur radio satellite is launched. 1958 1963 RDS PROTOCOL TRANSISTOR RADIO Regency introduces the pocket transistor radio, the TR-1, which was powered by a standard 22.5V battery. RDS allows small bits of data to be included in FM broadcasts, allowing stations to include artist and song info on digital radio displays. 1968 1988 RADIO SUFFERS TELŠTAR Television is such a novelty that big stars, programs, and advertisers defect from radio to TV. Radio begins to localize and concentrate on The world's technology focuses on space, and radio is different. The first radio communication satellite, Telstar, is launched into space. 1954 1984 playing records. WXYC becomes the first radio station to broadcast on the Internet RDS is shown to the public in car radios and stationary tuners at the Internationale Funkausstellung in Berlin. Sirius Satellite Radio is founded. 1998 1998 REAL AUDIO Progressive Networks releases RealAudio, which offers AM-radio quality sound in real time. 1998 COPYRIGHT TROUBLE THE DIGITAL AGE The Digital Millennium Copyright Act forces Internet radio broadcasts to pay additional royalty fees in contrast to traditional radio stations, which only pay publishing royalties. Amateur radio experimenters begin to use computers with audio cards to process radio signals, and the first digital transmissions begin to be broadcast. 2000 real 1995 Sonicwave.com co becomes the first e Internet radio station. Nanotube radio is invented, small enough to fit in a single living cell. a Pandora Radio is founded under e the name Savage Beast Howard Stern o ditches a terrestrial radio u for Sirius Satellite Radio STREAMING POPULARITY h882 By 2008, streaming music radio's revenue rose to above $500 million. Nearly 13 percent of the American population had listened to the radio online. A NEW SENSATION Online Internet radio is valued at $49 million. PODCASTING A neologism of broadcast and iPod, podcasting's success caused radio businesses to reconsider established preconceptions about audiences, production, and distribution. Slacker radio e launches, offering traditional and speciality stations pre-programmed by professional DJs. 2883 2888 Spotify adds radio to its repertoire - Turntable.fm launches SOURCES: CALIFORNIAHISTORICALRADIO.COM I 2WCOM.COM I SPACETODAY.ORG I UNCP.EDU I FATHOM.cOM I EARLYRADIOHISTORY.US I INVENTORS.ABOUT.COM I SONOS GOLDEN AGE OF RADIO LEGI VACUUM TUBE AGE II02 BIRTH OF INTERNET RADIO 1987

The History Of Radio

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Radio is one of the most important technological inventions in recent history, and paved the road for advanced communication, exploration, entertainment, and music discovery. Since its birth in the la...

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Entertainment
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