On 30 December 1918, Edwin H. Armstrong ap …
On 30 December 1918, Edwin H. Armstrong applied for a patent on the superheterodyne receiver (issued on 8 June 1920). Its ability to boost weak signals made it possible to reduce the size of antennas dramatically. RCA marketed the superheterodyne beginning in March 1924, making it standard.ginning in March 1924, making it standard. +
|Timeline Date||December 30, 1918 +|
|Categories||Communications , Radio communication , Timeline|
"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.
|06:46:55, 23 November 2017 +|
|hide properties that link here|
|No properties link to this page.|