John Howard Dellinger

Short description: American engineer

John Howard Dellinger

Yearbook photo of Dellinger, circa 1908

Born| (1886-07-03)July 3, 1886
Died| December 28, 1962(1962-12-28) (aged 76)
Nationality| American
Awards| IEEE Medal of Honor (1938)
Scientific career
Fields| Electrical engineering

John Howard Dellinger (July 3, 1886 - December 28, 1962) was a noted American telecommunication engineer who discovered how solar flares caused fadeouts of short-wave radios (the Dellinger effect).

Dellinger was born in Cleveland, Ohio, first attended the Western Reserve University, in 1908 received his A.B. degree from George Washington University, and in 1913 received his Ph.D. degree from Princeton University. From 1907-1948 Dellinger worked at the National Bureau of Standards as physicist; chief, radio section; and chief, Central Radio Propagation Laboratory. From 1928-1929 he served as chief engineer of the Federal Radio Commission, and also served as a representative of the United States Department of Commerce on the Radio Advisory Committee (1922–1948).

He was appointed vice-president of the International Scientific Radio Union in 1934, chairman of the Radio Technical Commission for Aeronautics in 1941, chairman of the Radio Technical Commission for Marine Services in 1947, and chairman of Study Group 6 on Radio Propagation of the International Radio Consultative Committee in 1950.

In 1932 Dellinger was awarded the Sc.D. degree from George Washington University, and in 1938 the IRE Medal of Honor "for his contributions to the development of radio measurements and standards, his researches and discoveries of the relation between radio wave propagation and other natural phenomena, and his leadership in international conferences contributing to the worldwide cooperation in telecommunications. The crater Dellinger on the Moon is named in his honor.

## References

* D. H. Menzel; M. Minnaert; B. Levin; A. Dollfus; B. Bell (1971). "Report on Lunar Nomenclature by The Working Group of Commission 17 of the IAU". Space Science Reviews 12 (2): 136. doi:10.1007/BF00171763. Bibcode: 1971SSRv...12..136M.
* IEEE History Center biography

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IEEE Medal of Honor

1926–1950|

* Greenleaf W. Pickard (1926)
* Louis W. Austin (1927)
* Jonathan Zenneck (1928)
* George W. Pierce (1929)
* Peder Oluf Pedersen (1930)
* Gustave-Auguste Ferrié (1931)
* Arthur Edwin Kennelly (1932)
* John Ambrose Fleming (1933)
* Stanford Caldwell Hooper (1934)
* Balthasar van der Pol (1935)
* George Ashley Campbell (1936)
* Melville Eastham (1937)
* John H. Dellinger (1938)
* Albert G. Lee (1939)
* Lloyd Espenschied (1940)
* Alfred Norton Goldsmith (1941)
* Albert H. Taylor (1942)
* William Wilson (1943)
* Haraden Pratt (1944)
* Harold Beverage (1945)
* Ralph Hartley (1946)
* Lawrence C. F. Horle (1948)
* Ralph Bown (1949)
* Frederick Terman (1950)

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