radio history -benji

electric waves could be transmitted wirelessly

1885

A german pysicist named Henirich Hertz was the first to prove that you could transmit and recieve electric waves wirelessly.

radios appeared in sea ships

1891

This reduced the isolation of the ships thus improving both reliability and safety.

marconi built the first complete radio

1894

italian inventor gugliemo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne hertzain waves (radio transmission)

first voice radio channel

1919

First clear transmission of human speech, (on 9XM) after experiments with voice (1918) and music (1917).
1920: Regular wireless broadcasts for entertainment began in Argentina, pioneered by the group around Enrique Telémaco Susini.

first radio station

1920

the first radio station was called KDKA. And they just played music on that radio station. it was made in Pennsylvania.

FCC federal communication commission

1937

the first experimental FM radio station, was granted a construction permit by the U.S. Federal Communications Commission (FCC).

radio on tv

1940

Radio was first used to transmit pictures visible as television.

radio introduced to germany

1943

After World War II: The FM radio broadcast was introduced in Germany.

little radio

1945

Regency introduced a pocket transistor radio, the TR-1, powered by a "standard 22.5V Battery".

first radio station to get a donation

1979

First WCBN fundraiser is organized by Ann Rebentisch, and raises $5,000.

compact disc

1982

The digital Compact Disc (CD) is introduced by a Japanese conglomerate.

introduced in Europe

1993

In the US, FM radio stations begin to use the RDS already in place in Europe.