Analysis of information sources in references of the Wikipedia article "International Beacon Project" in English language version.
HF propagation over Africa
Except for short-term experiments ... the IARU does not support the operation of amateur beacons below 14 MHz because of congestion in these bands.
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: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)HF propagation over Africa