{"id":101,"date":"2020-11-12T01:15:00","date_gmt":"2020-11-12T00:15:00","guid":{"rendered":"https:\/\/lipkowski.com\/?p=101"},"modified":"2020-11-12T01:15:00","modified_gmt":"2020-11-12T00:15:00","slug":"moxon-125mhz","status":"publish","type":"post","link":"https:\/\/lipkowski.com\/pl\/2020\/11\/12\/moxon-125mhz\/","title":{"rendered":"Antena Moxon na 125MHz"},"content":{"rendered":"<p>Zawsze chcia\u0142em zrobi\u0107 anten\u0119 Moxon, ale nigdy nie mia\u0142em do tego powodu. W ko\u0144cu projekt <a href=\"https:\/\/lipkowski.com\/etherify\/\">Etherify<\/a> okaza\u0142 si\u0119 by\u0107 odpowiedni\u0105 wym\u00f3wk\u0105. Potrzebowa\u0142em lekkiej anteny kierunkowej kt\u00f3ra mia\u0142aby du\u017cy wsp\u00f3\u0142czynnik F\/B i niekoniecznie du\u017cy zysk.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-102\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon2_125mhz.jpg\" alt=\"\" width=\"1000\" height=\"563\" \/><\/p>\n<p><!--more--><\/p>\n<p>Antena Moxon to jest tak naprawd\u0119 2-elementowa antena yagi, z zagi\u0119tym reflektorem i wibratorem, tak aby zmniejszy\u0107 wymiary.<\/p>\n<p>Antena musia\u0142a by\u0107 bardzo lekka, wi\u0119c zosta\u0142a wykonana z aluminiowych pr\u0119t\u00f3w spawalniczych 2mm i 28mm rury instalacyjnej do instalacji elektrycznych. Konstrukcja musia\u0142a by\u0107 szybka i opiera\u0107 si\u0119 na materia\u0142ach kt\u00f3re mia\u0142em w domu.<\/p>\n<p>Jest wiele kalkulator\u00f3w anten moxon dost\u0119pnych w internecie. Na pocz\u0105tku u\u017cywa\u0142em tego: <a href=\"https:\/\/kg4zow.us\/moxgen.cgi\">https:\/\/kg4zow.us\/moxgen.cgi<\/a> , jednak\u017ce wykonana antena mia\u0142a rezonans 3MHz za wysoko i z\u0142y SWR na cz\u0119stotliwo\u015bci 125MHz. Drug\u0105 pr\u00f3b\u0119 wykona\u0142em z\u00a0 <a href=\"https:\/\/www.ac6la.com\/moxgen1.html\">AC6LA Moxgen <\/a>:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_calc1.png\" alt=\"\" width=\"673\" height=\"399\" \/><\/p>\n<p>Przed konstrukcj\u0105 wykona\u0142em symulacj\u0119 tej anteny za pomoc\u0105 xnec2c i wysz\u0142a ona \u015bwietnie:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-104\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_simul1.png\" alt=\"\" width=\"643\" height=\"584\" \/><\/p>\n<p>W rzeczywisto\u015bci antena mia\u0142a rezonans oko\u0142o 2MHz za nisko, nie jest to idealne ale nadal akceptowalne (SWR 1.26 na 125MHz):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-106\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_vna2_orig.jpg\" alt=\"\" width=\"532\" height=\"398\" \/><\/p>\n<p>Skr\u00f3cenie obu stron wibratora o 5mm daje rezonans dok\u0142adnie na 125MHz, jednak\u017ce SWR jest wtedy 1.28, wi\u0119c tak naprawd\u0119 nie jest to poprawa.<\/p>\n<p>Wi\u0119cej zdj\u0119\u0107 anteny:<\/p>\n<p>Symetryzator zosta\u0142 zrobiony z 50cm kabla koncentrycznego nawini\u0119tego na boom. U\u017cy\u0142em kabla RG-58 (a tak naprawd\u0119 RG-100, kt\u00f3ry jest wysokiej jako\u015bci polskim odpowiednikiem RG-58).<\/p>\n<figure id=\"attachment_108\" aria-describedby=\"caption-attachment-108\" style=\"width: 1000px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-108\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_r_mount.jpg\" alt=\"\" width=\"1000\" height=\"563\" \/><figcaption id=\"caption-attachment-108\" class=\"wp-caption-text\">Moxon, mocowanie wibratora i symetryzator<\/figcaption><\/figure>\n<p>Mocowanie reflektora:<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-109\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_refl_mount.jpg\" alt=\"\" width=\"1000\" height=\"563\" \/><\/p>\n<p>Rozp\u00f3rka element\u00f3w:<\/p>\n<figure id=\"attachment_110\" aria-describedby=\"caption-attachment-110\" style=\"width: 991px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-110\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_spreader.jpg\" alt=\"\" width=\"991\" height=\"206\" \/><figcaption id=\"caption-attachment-110\" class=\"wp-caption-text\">Moxon rozp\u00f3rka<\/figcaption><\/figure>\n<figure id=\"attachment_111\" aria-describedby=\"caption-attachment-111\" style=\"width: 557px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-111\" src=\"https:\/\/lipkowski.com\/wp-content\/uploads\/2020\/11\/moxon_all1.jpg\" alt=\"\" width=\"557\" height=\"649\" \/><figcaption id=\"caption-attachment-111\" class=\"wp-caption-text\">Moxon 125MHz<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve always wanted to make a Moxon antenna, but didn&#8217;t have an excuse to do so. Recently i needed a very lightweight directional antenna for Etherify with not so much gain, but considerable F\/B, so i finally had the excuse i needed.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[7,8,6],"class_list":["post-101","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-125mhz","tag-etherify","tag-moxon"],"translation":{"provider":"WPGlobus","version":"3.0.1","language":"pl","enabled_languages":["en","pl"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"pl":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/posts\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":7,"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/posts\/101\/revisions"}],"predecessor-version":[{"id":116,"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/posts\/101\/revisions\/116"}],"wp:attachment":[{"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/media?parent=101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/categories?post=101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lipkowski.com\/pl\/wp-json\/wp\/v2\/tags?post=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}