{"id":359,"date":"2016-04-21T21:48:05","date_gmt":"2016-04-21T19:48:05","guid":{"rendered":"http:\/\/www.ik0vve.net\/?p=359"},"modified":"2016-05-12T20:33:16","modified_gmt":"2016-05-12T18:33:16","slug":"a-little-upgrade-to-the-630m-tx-antenna","status":"publish","type":"post","link":"https:\/\/www.ik0vve.net\/?p=359","title":{"rendered":"A little upgrade to the 630m TX antenna"},"content":{"rendered":"<p>To make a clean sweep of spagetti wires on the bottom of the antenna, to make my XYL happier, i tought to use the aluminium strip for the first section of the TX antenna.<\/p>\n<p>After removed copper wires I connected the variometer to an old 4 el triband yagi for HF aluminium boom by a piece of strip taking care to pass as far as possible from the\u00a0reinforced concrete column.<\/p>\n<p><a href=\"http:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4345.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-361 size-large aligncenter\" src=\"http:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4345-1024x768.jpg\" alt=\"100_4345\" width=\"640\" height=\"480\" srcset=\"https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4345-1024x768.jpg 1024w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4345-300x225.jpg 300w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4345-150x113.jpg 150w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4345-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Then, on the top of the aluminium tube, another strip of 2 meter or so long to connect the vertical pole (the &#8220;<em>antenna<\/em>&#8220;&#8230;) located on the roof.<\/p>\n<p><a href=\"http:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4346.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-362 size-large aligncenter\" src=\"http:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4346-768x1024.jpg\" alt=\"100_4346\" width=\"640\" height=\"853\" srcset=\"https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4346-768x1024.jpg 768w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4346-225x300.jpg 225w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4346-113x150.jpg 113w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/100_4346-400x533.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Two insulators are ready to be mounted between the brackets in the wall and the aluminium tube so to try to improve the insulation for the high tension present in this zone.<\/p>\n<p>This improvement, of course, lowered the antenna resonance and changed the impedence of the system.<\/p>\n<p>It seems now that the current has risen by 1\/8 compared\u00a0to before.<\/p>\n<ul>\n<li>UPDATE 28th April 2016 &#8230; :<\/li>\n<\/ul>\n<p><a href=\"http:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f.jpeg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-373 size-large aligncenter\" src=\"http:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f-614x1024.jpeg\" alt=\"aecbe35c-22f9-4974-b6dc-e84e78a3863f\" width=\"614\" height=\"1024\" srcset=\"https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f-614x1024.jpeg 614w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f-180x300.jpeg 180w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f-90x150.jpeg 90w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f-400x667.jpeg 400w, https:\/\/www.ik0vve.net\/wp-content\/uploads\/2016\/04\/aecbe35c-22f9-4974-b6dc-e84e78a3863f.jpeg 864w\" sizes=\"(max-width: 614px) 100vw, 614px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>To make a clean sweep of spagetti wires on the<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5,13,25,3,6,7],"tags":[],"_links":{"self":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/359"}],"collection":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=359"}],"version-history":[{"count":7,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/359\/revisions"}],"predecessor-version":[{"id":459,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/359\/revisions\/459"}],"wp:attachment":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}