Answers are grounded in this paper and cite their sources.
Results reported in Technical Report O ! R DED TO NIGHT-TIME CONDITIONS. It is found that both by day and by night a total ionospheric transmission optimum in the neighbourhood of 3-5 kc/s exists for whistler mode propagation. Results are consistent with experimental values of Storey. (Author)
No takes yet. Share an insight, caveat, or question.
Altman et al. (1962) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: