{"id":154,"date":"2015-01-15T20:32:09","date_gmt":"2015-01-15T19:32:09","guid":{"rendered":"http:\/\/localhost\/SM0BRF\/wordpress-3.9.1-sv_SE\/wordpress\/?p=154"},"modified":"2016-02-20T08:55:16","modified_gmt":"2016-02-20T08:55:16","slug":"vilken-ar-bast-en-horisontell-dipol-eller-en-deltaloop","status":"publish","type":"post","link":"https:\/\/www.sm0brf.se\/?p=154","title":{"rendered":"Vilken \u00e4r b\u00e4st? En horisontell dipol eller en Deltaloop?"},"content":{"rendered":"<p>Under 2014 gjorde jag ett f\u00f6rs\u00f6k d\u00e4r jag j\u00e4mf\u00f6rde min vridbara horisontella halvv\u00e5gsdipol med en deltaloop som matades f\u00f6r vertikal polarisation.<\/p>\n<p><a href=\"https:\/\/www.sm0brf.se\/wp-content\/uploads\/2016\/02\/Comp_dipole_loop.jpg\" rel=\"attachment wp-att-487\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-487\" src=\"https:\/\/www.sm0brf.se\/wp-content\/uploads\/2016\/02\/Comp_dipole_loop-300x189.jpg\" alt=\"Comp_dipole_loop\" width=\"300\" height=\"189\" srcset=\"https:\/\/www.sm0brf.se\/wp-content\/uploads\/2016\/02\/Comp_dipole_loop-300x189.jpg 300w, https:\/\/www.sm0brf.se\/wp-content\/uploads\/2016\/02\/Comp_dipole_loop-624x394.jpg 624w, https:\/\/www.sm0brf.se\/wp-content\/uploads\/2016\/02\/Comp_dipole_loop.jpg 704w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Sammanfattning och spekulationer.<\/p>\n<p>J\u00e4mf\u00f6relse gjordes mot USA vid 5 olika tillf\u00e4llen. Totalt blev det 33 st spots fr\u00e5n gemensamma RBN-stationer J\u00e4mf\u00f6relse mellan dipol och vertikalpolariserad deltaloop.<\/p>\n<p>och den genomsnittliga skillnaden var 4,75 dB till dipolens f\u00f6rdel.<\/p>\n<p>Inget m\u00f6nster f\u00f6r tid p\u00e5 dygnet kunde utl\u00e4sas av s\u00e5 f\u00e5 tillf\u00e4llen. En morgon var skillnaden kl 08 SNT 3,7 dB medan en annan morgon vid samma tid 6,0 dB. En kv\u00e4ll kl 22 SNT var skillnaden 3,3 dB medan en annan kv\u00e4ll vid samma tid 7 dB.<\/p>\n<p>En \u201dk\u00e4nslighetsanalys\u201d genom att \u00e4ndra frekvens och tid n\u00e5got runt de aktuella visar att det inte g\u00e5r att uttala sig med n\u00e5gon s\u00e4kerhet om eleveringsvinkeln.<\/p>\n<p>Det f\u00f6rekommer ocks\u00e5 \u201dudda\u201d utbredningsmekanismer, kanske sk chordal hops, vilket QSOet med ZL3XDJ tydligt visade. Mycket bra signal, men Ham CAP s\u00e4ger att det \u00e4r om\u00f6jligt.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Under 2014 gjorde jag ett f\u00f6rs\u00f6k d\u00e4r jag j\u00e4mf\u00f6rde min vridbara horisontella halvv\u00e5gsdipol med en deltaloop som matades f\u00f6r vertikal polarisation. Sammanfattning och spekulationer. J\u00e4mf\u00f6relse gjordes mot USA vid 5 olika tillf\u00e4llen. Totalt blev det 33 st spots fr\u00e5n gemensamma RBN-stationer J\u00e4mf\u00f6relse mellan dipol och vertikalpolariserad deltaloop. och den genomsnittliga skillnaden var 4,75 dB till [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-154","post","type-post","status-publish","format-standard","hentry","category-antenner"],"_links":{"self":[{"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=\/wp\/v2\/posts\/154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=154"}],"version-history":[{"count":4,"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=\/wp\/v2\/posts\/154\/revisions"}],"predecessor-version":[{"id":619,"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=\/wp\/v2\/posts\/154\/revisions\/619"}],"wp:attachment":[{"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sm0brf.se\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}