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Cover image for Numerical mapping of the continents for use in high-frequency skywave radio predictions

Numerical mapping of the continents for use in high-frequency skywave radio predictions

by Zacharisen, Donald H.
1972
Format: Book

Location	Call #	Status
Joyner - Fed Docs Stacks	C 1.60:31	✔ Available

Cover image for World maps of atmospheric radio noise in universal time by numerical mapping

World maps of atmospheric radio noise in universal time by numerical mapping

by Zacharisen, Donald H.
1970
Format: Book

Location	Call #	Status
Joyner - Fed Docs Stacks	C 1.60:2	✔ Available

Cover image for Supplementary world maps of F2 critical frequencies and maximum usable frequency factors

Supplementary world maps of F2 critical frequencies and maximum usable frequency factors

by Zacharisen, Donald H.
1960
Format: Electronic

Location
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