RSGB video on VHF Propagation

RSGB video on VHF Propagation https://ei7gl.blogspot.com/2020/06/rsgb-video-on-vhf-propagation.html https://translate.google.pl/translate?hl=pl&sl=en&tl=pl&u=https%3A%2F%2Fei7gl.blogspot.com%2F2020%2F06%2Frsgb-video-on-vhf-propagation.html

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