AT&T inaugurates the
Teletypewriter Exchange Service (TWX) 21 November
1932
1933
Edwin Armstrong demonstrates
frequency modulation (FM) to David Sarnoff.
1934
The Federal Communications
Commission (FCC) is established.
1935
The first around-the-world
telephone conversation takes place. (25
April)
Western Union's "Telefax"
begins operating. Telefax sent
telegrams, manuscripts, line drawings,
maps and page proofs for magazines.
1936
Invention of coaxial cable
is announced at a joint meeting of the
American Physical Society and the IRE
(30 April).
1937
Seven-hour radio broadcast
of the coronation of King George VI and
Queen Elizabeth of England.
1938
The power of radio is
demonstrated by Orsen Wells with the
broadcast of "War of the Worlds". This
causes telephone traffic to
peak in nearly all cities and on long
distance lines.
1939
The Golden Gate Exposition
(San Francisco) and New York Worlds Fair
are opened. These exhibit the newest
technologies, including the
Voder (synthesized speech) and
television.
FM is used by Bell
Laboratories in a radio altimeter that
uses signal reflections from
the surface of the earth.
