{"id":107,"date":"2017-10-13T16:02:56","date_gmt":"2017-10-13T05:02:56","guid":{"rendered":"http:\/\/vk3scm.com\/?p=107"},"modified":"2017-10-27T17:20:06","modified_gmt":"2017-10-27T06:20:06","slug":"sturba","status":"publish","type":"post","link":"https:\/\/vk3scm.com\/index.php\/sturba\/","title":{"rendered":"Sturba Curtain Antenna"},"content":{"rendered":"<p><em>Project Review:<\/em><\/p>\n<p>The Sturba antenna was a success, adding about +3 signal to that received on the squid pole during the <a href=\"http:\/\/vk3scm.com\/index.php\/event\/jota-2017\/\" target=\"_blank\" rel=\"noopener\">JOTA 2017<\/a> operation. The antenna was lifted to 3m above ground from the bottom of the array, sitting approximately 8m high. The thick wire just offset to the left of the centre below is the 450\u03a9 feedline, attached to a balun on the ground and RG213 to the HF rig (a <a href=\"http:\/\/yaesu.com\/indexVS.cfm?cmd=DisplayProducts&amp;ProdCatID=102&amp;encProdID=870B3CA7CFCB61E6A599B0EFEA2217E4&amp;DivisionID=65&amp;isArchived=0\" target=\"_blank\" rel=\"noopener\">Yaesu FT-450<\/a>).<\/p>\n<p><img decoding=\"async\" class=\"ngg-singlepic ngg-center aligncenter\" src=\"http:\/\/vk3scm.com\/wp-content\/gallery\/jota-at-the-park-2017\/sitesturba.jpg\" alt=\"site+sturba\"><\/p>\n<p><em>Project Summary:<\/em><\/p>\n<p>To construct and explore the benefits of a Sturba Antenna Array.<\/p>\n<p><em>Materials:<\/em><\/p>\n<ul>\n<li>2.5mm\u00b2 TPS building wire, stripped<\/li>\n<li>8x BP connectors<\/li>\n<li>450\u03a9 balanced line<\/li>\n<li><a href=\"http:\/\/vk6ysf.com\/unun_9-1.htm\" target=\"_blank\" rel=\"noopener\">1:9 balun<\/a><\/li>\n<li>cable ties (for holding the shape of the array)<\/li>\n<li>support rope (top and bottom of array)<\/li>\n<\/ul>\n<p><em>Resource:<\/em><\/p>\n<p><a href=\"http:\/\/www.hamuniverse.com\/sturba.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.hamuniverse.com\/sturba.html<\/a><\/p>\n<p><a href=\"https:\/\/www.w8ji.com\/curtain%20sterba%20USIA%20array.htm\" target=\"_blank\" rel=\"noopener\">https:\/\/www.w8ji.com\/curtain%20sterba%20USIA%20array.htm<\/a><\/p>\n<p><em>Supporting Documents:<\/em><\/p>\n<p><a href=\"http:\/\/vk3scm.com\/sturba.pdf\" target=\"_blank\" rel=\"noopener\">sturba-annotated.pdf<\/a><\/p>\n<p><a href=\"http:\/\/vk3scm.com\/jotaAssets\/sturba-diagram.pdf\" target=\"_blank\" rel=\"noopener\">sturba-diagram.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Project Review: The Sturba antenna was a success, adding about +3 signal to that received on the squid pole during the JOTA 2017 operation. The antenna was lifted to 3m above ground from the bottom of the array, sitting approximately 8m high. The thick wire just offset to the left of the centre below is &#8230; <a title=\"Sturba Curtain Antenna\" class=\"read-more\" href=\"https:\/\/vk3scm.com\/index.php\/sturba\/\">Read more<span class=\"screen-reader-text\">Sturba Curtain Antenna<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/posts\/107"}],"collection":[{"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/comments?post=107"}],"version-history":[{"count":10,"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/posts\/107\/revisions"}],"predecessor-version":[{"id":211,"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/posts\/107\/revisions\/211"}],"wp:attachment":[{"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/media?parent=107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/categories?post=107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vk3scm.com\/index.php\/wp-json\/wp\/v2\/tags?post=107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}