Edwin Howard Armstrong

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Edwin Howard Armstrong (born 18 December 1890, 1 February 1954) is an American radio.

Since 1914 he has been a professor at Columbia University since 1936. He has been working on radio broadcasting. He found a receiver with increased sensitivity and selectivity in 1913, and five years later developed a superheterodyne reception principle. In 1922 he designed a super-responsive shortwave receiver. He studied the values ​​of frequency modulation. He committed suicide by jumping out of the 13th floor window. The reason for such a decision was, as we learned from the letter written before the death of the letter, ultimately lost, long-term court proceedings with US corporations. These companies, in view of their interests, effectively blocked the possibility of patenting Armstrong's inventions. Authoritative control (person):

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