Fessenden, Reginald Aubrey

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Fessenden, Reginald Aubrey


Born Oct. 6, 1866, in East Bolton, Quebec, Canada; died July 22, 1932, in Hamilton, Bermuda. American scientist; specialist in electrical engineering and radio engineering.

Fessenden did not have a specialized education. He began studying electromagnetic waves in 1895, and in 1899 he demonstrated the usefulness of the wireless telegraph for weather reporting. In 1900 he developed industrial models of high-frequency (60/kilohertz) induction generators. In 1901, together with the American scientist E. F. W. Alexanderson, Fessenden built a high-frequency arc generator and succeeded in transmitting the human voice by radio. He invented an electrolytic detector in 1902 and proposed a method for heterodyne reception in 1905.

Fessenden was awarded more than 300 patents, mainly for his inventions in radio engineering. Many of them pertain to marine navigation and signaling, such as the sonic depth finder, various direction finders, and electroacoustic devices.

References in periodicals archive ?
On Christmas Eve, 1906, the Canadian inventor Reginald Fessenden broadcast the first medium-wave radio programme, which included him playing O Holy Night on the violin.
CGG Gilles Lambar, Research Director, EAME, Subsurface Imaging, CGG, has been distinguished with the Society of Exploration Geophysicists (SEG) Reginald Fessenden Award in recognition of his initiation of the concept of common-angle migration and demonstration of the potential of that approach to seismic imaging.
Following the 1912 disaster, Reginald Fessenden developed echo technology to help detect icebergs.
Canadian radio scientist Reginald Fessenden, who was working for the US weather service in Washington, had posed the question to a staff member stationed over a kilometre away.
What was probably the first radio transmission of voice and music came via a Canadian, Reginald Fessenden.
As a longtime resident of Niagara Falls, Ontario, I was especially interested in your article about Reginald Fessenden, "Radio Pioneer," that appears in your June-July 2010 issue.
But in the early 1900s, a Canadian scientist named Reginald Fessenden developed a way of sending speech and other sounds over radio waves.
The program is named after Reginald Fessenden, an electrical engineer at the University of Pittsburgh (1893-1900) who carried out important early research that led to the development of the modern radio.
All records indicate this was still being done in Morse code, although voice and music transmission had been accomplished elsewhere as early as 1906 by Reginald Fessenden.
But it was not until 1906 that offshore ships heard radio waves carry a human voice in the world's first radio broadcast by Reginald Fessenden.
The people who truly breathe in the story are the supporting characters, for instance, booming, mercurial Reginald Fessenden, who succeeded in first transmitting voices via wireless.
Few of Alexanderson's larger products were undertaken without up-front commitment from a customer, as in the case of his collaboration with Reginald Fessenden over the single-disk alternator.