{"id":1711,"date":"2025-12-09T20:31:47","date_gmt":"2025-12-09T19:31:47","guid":{"rendered":"https:\/\/fra1od.freeboxos.fr\/wordpress\/?p=1711"},"modified":"2025-12-09T20:31:48","modified_gmt":"2025-12-09T19:31:48","slug":"nouvelle-realisation-antennes","status":"publish","type":"post","link":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/2025\/12\/09\/nouvelle-realisation-antennes\/","title":{"rendered":"Nouvelle r\u00e9alisation Antennes"},"content":{"rendered":"\n
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Unun de 49:1 en QRP et un double dip\u00f4le UHF\/VHF<\/p>\n\n\n\n

pour le Unun de 49:1 avec BNC pour du QRP mais peux encaisser 50W <\/p>\n\n\n\n

80m -> 125\u00a0\u00bb -> 38,1m<\/td>30m -> 42,6\u00a0\u00bb -> 12,80m<\/td>15m -> 20,0 -> 6,09m<\/td><\/tr>
60m -> 81\u00a0\u00bb -> 24,68m<\/td>20m -> 28,8\u00a0\u00bb -> 8,77m<\/td>12m -> 15,6 -> 4,75m<\/td><\/tr>
40m -> 61,6\u00a0\u00bb -> 18,59m<\/td>17m -> 22,4\u00a0\u00bb -> 6,82m<\/td>10m -> 13,2 -> 3,96m<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Beaucoup utilise 8.77m pour avoir la fr\u00e9quence central sur 20m et la conserve pour utiliser les bande basse et haute avec un peux plus de ros mais cela reste acceptable sauf pour le 80 et 10m +de 3<\/p>\n\n\n\n

Pour le dip\u00f4le j’ai 49,19cm pour le VHF et 16,40cm pour l’UHF donc un cot\u00e9 fait 65,59cm et j’ai pli\u00e9 pour avoir 16,40 et 49,19<\/p>\n\n\n\n

je viens de tester sur 430 Mhz j’ai 1.2ros et sur 145Mhz, j’ai 1.8 je devrais avoir moins mais mon cuivre de 1m n’est pas tendu droit des 2 c\u00f4t\u00e9s.<\/p>\n\n\n\n

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Unun de 49:1 en QRP et un double dip\u00f4le UHF\/VHF pour le Unun de 49:1 avec BNC pour du QRP mais peux encaisser 50W 80m -> 125\u00a0\u00bb -> 38,1m 30m -> 42,6\u00a0\u00bb -> 12,80m 15m -> 20,0 -> 6,09m 60m -> 81\u00a0\u00bb -> 24,68m 20m -> 28,8\u00a0\u00bb -> 8,77m 12m -> 15,6 -> 4,75m 40m … Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1711","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/1711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=1711"}],"version-history":[{"count":2,"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/1711\/revisions"}],"predecessor-version":[{"id":1717,"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/1711\/revisions\/1717"}],"wp:attachment":[{"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=1711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=1711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fra1od.freeboxos.fr\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=1711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}