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Sarnoff also demonstrated the first use of radio on a railroad line, the Lackawanna Railroad Company's link between Binghamton, New York, and Scranton, Pennsylvania; and permitted and observed Edwin Armstrong's demonstration of his regenerative receiver at the Marconi station at Belmar, New Jersey.
The film focused primarily [5] on the three pioneers [6] of radio in America: Lee de Forest, Edwin Howard Armstrong, and David Sarnoff. [7] The program interspersed audio and musical highlights of "old time" radio with the stories, achievements, failures, scams and bitter feuds between each of the main protagonists. [8]
Although most early radio receivers used regeneration Armstrong approached RCA's David Sarnoff, whom he had known since giving a demonstration of his regeneration receiver in 1913, about the corporation offering superheterodynes as a superior offering to the general public. [28] (The ongoing patent dispute was not a hindrance, because extensive ...
By 1933, Edwin Armstrong had filed key patents for techniques he developed that were to eventually make FM radio successful. His professional relationship with Marion's former boss, Sarnoff, fractured when Sarnoff who was by then the President of RCA, concluded the development of FM radio was not in the best interests of RCA, which operated an ...
Edwin Howard Armstrong invented the superheterodyne receiver in 1918. [1] Armstrong and RCA (under David Sarnoff) had a business and technical relationship, that would last into the 1940s. Funded by RCA, Armstrong designed a radio that can receive stations easily without complex tuning or interference from other stations.
In 1933, FM radio was patented by inventor Edwin H. Armstrong. [74] FM uses frequency modulation of the radio wave to reduce static and interference from electrical equipment and the atmosphere. In 1937, W1XOJ , the first experimental FM radio station after Armstrong's W2XMN in Alpine, New Jersey, was granted a construction permit by the US ...
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Sweigert also admired Edwin Armstrong and his invention of FM radio. Armstrong's concept of the superheterodyne receiver to filter out noise and amplify the original signal is used in the cordless phone. He also admired Armstrong's courage to challenge the status quo of AM radio and its powerful leader, David Sarnoff.