Timeline of Radio and Television History



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Timeline of Radio and Television History

The history of radio and television at a glance including related electronics, computers and satellites.


1757-1775

Benjamin Franklin works in London

1799

Volta invents electrical battery

1838

Morse demonstrates telegraphy

1861

Transcontinental telegraph by wire

1866

Transatlantic cable

County Kerry transatlantic cable station



1876

Bell invents telephone

1883

Edison invents the Edison effect

1886

Hertz produces and detects electric waves

1894

Lodge invents Coherer with 200 mile range

1897

J.J.Thompson discovers the electron

1899

Wireless telegraphy

1901

Reception of transatlantic radio signals in Newfoundland from Marconi in the U.K.

1902

Poulsen-Arc radio transmitter

1903

Triode invented

1904

Radio alternator designed

1906

Catwhisker crystal detector invented

Sound broadcast combines voice and music

RF Continuous-wave alternator developed


1909

Shoshone transmission line

1912

RF generator invented

1914

American Radio Relay League founded

1918

Superheterodyne receiver invented

1920

Westinghouse radio station KDKA broadcasts at Pittsburgh

1924

RCA superheterodyne sold in stores

Directive shortwave antenna invented



1925

Human features transmitted by television

Pioneers work on radar



1927

Working television demonstrated

1928

One-way police radio communication

1931

Radioastronomy founded by detection of radio waves from the center of our Milky Way galaxy

Voice of Australia first broadcaster in Southern Hemisphere



1932

Radio is important in U.S. Hoover vs. Roosevelt presidential campaign

1933

Two-way police radio communication

German Ministry of Popular Education and Propaganda controls broadcasting

FM invented by Edwin H. Armstrong


1934

Long range shortwave voice transmission from Byrd Antarctic Expedition

Law limits broadcasting in India

U.S. Federal Communications Act sets up FCC


1935

Argentina, Bolivia, Brazil, Chile, Paraguay, Uruguay radio agreement

International Wireless Committee code of good conduct for international broadcasts

Japan broadcasts to America


1936

BBC airs first news story -- fire at London's Crystal Palace

1937

U.S. Radio Code

Radios have pushbuttons

The first experimental FM radio station, W1XOJ, construction begins.

Radiotelescope used to find the first discrete radio sources beyond Earth and map the natural radio signals across the Milky Way



1938

CBS broadcasts Orson Welles' "Invasion From Mars" from H.G. Wells's "War of the Worlds"

1939

Baseball televised

Germany transmits internationally in 26 languages, while listening in Germany to foreign broadcast is a capital offense

Atanasoff-Berry computer developed

Television displayed at the New York’s World Fair at Flushing Meadows, Queens.



1940s

World War II brings radar and other electronics which stimulate radioastronomy

1940

FM police radio communication

French General de Gaulle broadcasts from BBC to France

Sudan radio serves World War II Allies

News broadcasts in six languages on African Gold Coast



1941

U.S. Col. W. Donovan commission combats Axis radio propaganda

Switzerland broadcasts support International Red Cross

Opana radar site built


1942

Voice of America shortwave broadcasts in English, French, Italian, German

1942-1945

US Naval Computing Machine Laboratory

1943

BBC broadcasts English lessons

American Forces Network on the air



1944

BBC broadcasts coded messages to Fench resistance before D-Day

1945

Yugoslavia broadcasts

Military controls broadcasting in Soviet-occupied Germany

Astronomers develop radioastronomy

Japan's Emperor announces his country's surrender in his first radio broadcast



1946

First and brightest radio source beyond our galaxy, Cygnus A, discovered

U.S. Army Signal Corps bounces radar beam off Moon

Transistor invented will make small radios commercially feasible

Electronic Numerical Integrator and Computer (ENIAC) turned on



1946-1953

Black-and-white television reaches a broad American viewing audience in their homes.

U.S. develops monochrome-compatible electronic color television



1950-1969

Electronic technology applied to spaceflight

1951

Color television introduced in U.S.

Transistors manufactured

Electromagnetic radiation discovered coming from interstellar hydrogen at a radio wavelength of 21 cm


1953

FCC approves color television system

First amateur radio moonbounce



1956

Germanium transistor commercialized

1957

Beeping radio signal from Sputnik 1, Earth's first artificial satellite

1959

Radio signal from first human-made object to leave Earth, USSR probe Luna 1

Radio signal from first human-made object to reach another world, USSR probe Lunik 2 on the Moon

Radio-photos from first spacecraft to go behind the Moon, USSR probe Lunik 3

The integrated circuit (IC) is introduced

First communication satellite, Echo, launched by US


1960

First radio-photos of Earth weather from orbit

1961

First human communication from space

First amateur radio satellite



1962

Transatlantic reception of television signal via satellite

Radio signal from first human-made object to reach another planet, Mariner 2 at Venus

Telstar communications satellite


1963

First female human communication from space

Arecibo radiotelescope



1965

Radio signal from human-made object at Mars, Mariner 4

1969

Human communication from the Moon

The Internet begins



1971

Human communication from a space station

1973

Radio signal from human-made object at Jupiter, Pioneer 10

1974

Radio signal from human-made object at Mercury, Mariner 10

1976

Personal computer market is born

1979

Radio signal from human-made object at Saturn, Pioneer 11

1981

Human communication from a space shuttle

Sony introduces consumer synthesized radio receiver



1983

Radio signal from spacecraft leaving the Solar System, Pioneer 10

Direct broadcast TV



1986

Cellular phones become international business

Radio signal from human-made object at Uranus, Voyager 2



1989

Radio signal from human-made object at Neptune, Voyager 2
World Wide Web invented

1992

XM Satellite Radio

1993

Mosaic Web browser and Web pages

1994

Yahoo!
Internet radio broadcasting
Internet television broadcasting

1995

Wikis
Digital signal processing receiver

1999

Sirius Satellite Radio

1997

Blogging

1998

Google

2001

Wikipedia
Apple iPod
Kazaa file-sharing service
Software radio chips

2003

iTunes music service online
Digital Radio Mondiale (DRM) – digital AM radio with FM-quality sound
Second Life
MySpace

2004

Facebook
Podcasting

2005

YouTube

2006

Twitter

Sources:   ARRL,   IEEE,   Monitoring Times,   Popular Communications,   K3RXK






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