Invitation to the AMSAT-DL Symposium 2020 - DD1US

AMSAT-DL Online Satellite Symposium video http://www.southgatearc.org/news/2020/september/amsat-dl-online-satellite-symposium-video.htm#.X3BNXXXgrIU https://translate.google.pl/translate?hl=pl&sl=en&tl=pl&u=http%3A%2F%2Fwww.southgatearc.org%2Fnews%2F2020%2Fseptember%2Famsat-dl-online-satellite-symposium-video.htm%23.X3BNXXXgrIU

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