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Nomograms for Ionosphere Control Points

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1 Author(s)
J. C. W. Scott ; Radio Propagation Laboratory, Ottawa, Ontario, Canada

Knowing the length of a radio circuit and the latitudes of its terminals, nomograms are given which permit rapid derivation of the latitudes of the ionospheric control points. The use of world charts of maximum usable frequency is thus facilitated. September 29, 1948.

Published in:

Proceedings of the IRE  (Volume:37 ,  Issue: 7 )