Numerical maps of foEs for solar cycle minimum and maximum
By: M. Leftin, S.M. Ostrow, and C. Preston.
Contributors: Ostrow, S. M.; Preston, C.; Institute for Telecommunication Sciences.; United States. Environmental Science Services Administration
Series: ESSA technical report -- ERL 74-ITS 63
Publisher: Institute for Telecommunication Sciences
Published: 1989
Place of publication: Boulder, CO
Language: eng
Number of pages: 89
Subjects: Ionospheric radio wave propagation -- Charts, diagrams, etc.; Ionosphere -- Maximum usable frequency (Radio) -- Charts, diagrams, etc.; Solar cycle -- Charts, diagrams, etc.; Sporadic E (Ionosphere)
Genres: Charts, diagrams, etc.
Notes: "May 1968."

Bibliography: p. 15-16.

Photocopy. [S.l. : s.n., 1989]. 28 cm.