During the war, radio amateurs of the United States participated in three observing projects sponsored by the Bureau, the object of which was to obtain basic data urgently needed in making radio propagation predictions for the Allied Armed Forces. The first two projects called NBS-ARRL projects I an
โฆ LIBER โฆ
NOTES FROM THE NATIONAL BUREAU OF STANDARDS.*
โ Scribed by Jiang, Jing; Li, Tianjun; Nanopoulos, Dimitri V.; Xie, Dan
- Publisher
- Elsevier Science
- Year
- 1939
- Tongue
- English
- Weight
- 155 KB
- Volume
- 228
- Category
- Article
- ISSN
- 0016-0032
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