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Tag Archives: sun spots

Contest University Propagation Seminar 2021

Contest University Propagation Seminar 2021

Posted byn4pvhJanuary 23, 2021January 23, 2021Posted inAntennas, Blog, Contesting, DxTags:HamSci, HF Modeling, ionosphere, propagation, sun spotsLeave a comment on Contest University Propagation Seminar 2021

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