<div dir="ltr"><div>Hello Tous,</div><div><br></div>Impressionnant la différence de perte entre les câbles usuels RG et un simple fil nu : <a href="https://www.youtube.com/watch?v=uR8Rz0GrPVI&ab_channel=w2aew">https://www.youtube.com/watch?v=uR8Rz0GrPVI&ab_channel=w2aew</a><div>Sauf que le résultat est l'inverse de ce que l'on croit : le fil nu a une perte de moins de 0.2 Db à 30MHz, alors qu'un RG-58 a une perte de 2,5 Db à 30 MHz , et les pertes dûes au SWR amènent +4 Db supplémentaires pour un SWR de 15 sur du RG-58.</div><div><br></div><div>De quoi alimenter les discutions de bistro entre Radio-amateurs :)</div><div><br></div><div>A bientôt !</div><div>Douglas</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le mar. 29 mars 2022 à 23:21, Olivier Pilloud <<a href="mailto:olivier@pilloud.net">olivier@pilloud.net</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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2022-03-29 14.04.24
HB9MM - Formation à
la licence
radioamateur.zip
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