{"id":889,"date":"2023-05-19T12:54:32","date_gmt":"2023-05-19T20:54:32","guid":{"rendered":"https:\/\/islandhf.ca\/?p=889"},"modified":"2023-05-19T12:54:32","modified_gmt":"2023-05-19T20:54:32","slug":"brians-new-antenna-system","status":"publish","type":"post","link":"https:\/\/islandhf.ca\/index.php\/2023\/05\/19\/brians-new-antenna-system\/","title":{"rendered":"Brian&#8217;s new antenna system"},"content":{"rendered":"\n<p>I&#8217;m making progress although slower than expected, which I suppose is to be expected&#8230;.<br>All the relay switching is in place and functional although I am concerned about the current taken by one particular relay. Two pole double throw relays for handling RF energy are hard to come by these days so I&#8217;ll have to live with it and see how it goes.<\/p>\n\n\n\n<p>The matching in the top loaded vertical operation mode for 630\/160\/80 was done then the tree guy arrived to move one horizontal end up higher which gave me another four or five feet on the vertical. This doesn&#8217;t sound much but it made a significant change to the matching. All done now.<br><br>Next is the matching for 40 and higher when the antenna is in the horizontal doublet <br>mode. This will be in the radio room so will be a lot easier. I&#8217;ll use my home built VNA to measure the impedance on each band then use an on line calculator to come up with the required L networks.<br><br>Brian VE7JKZ<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m making progress although slower than expected, which I suppose is to be expected&#8230;.All the relay switching is in place and functional although I am concerned about the current taken [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-889","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/posts\/889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/comments?post=889"}],"version-history":[{"count":4,"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/posts\/889\/revisions"}],"predecessor-version":[{"id":896,"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/posts\/889\/revisions\/896"}],"wp:attachment":[{"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/media?parent=889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/categories?post=889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/islandhf.ca\/index.php\/wp-json\/wp\/v2\/tags?post=889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}