Supplementary world maps of F2 critical frequencies and maximum usable frequency factors / Donald H. Zacharisen.
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Format: | Government Document eBook |
Language: | English |
Published: |
Washington, D.C. :
National Bureau of Standards, United States Department of Commerce, Office of Technical Services,
1960.
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Series: | NBS technical note ;
2-2. |
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Internet
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Online
Call Number: |
C 13.46:2-2
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C 13.46:2-2 | Available |