{"id":3586,"date":"2021-04-08T21:13:41","date_gmt":"2021-04-08T11:43:41","guid":{"rendered":"http:\/\/serg.org.au\/?p=3586"},"modified":"2021-04-10T17:32:41","modified_gmt":"2021-04-10T08:02:41","slug":"naracoorte-back-on-and-possible-solution-to-noise","status":"publish","type":"post","link":"https:\/\/serg.org.au\/index.php\/2021\/04\/08\/naracoorte-back-on-and-possible-solution-to-noise\/","title":{"rendered":"Naracoorte back on and possible solution to noise"},"content":{"rendered":"\n<p>Two hard working people today. <\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Ross VK3KBO has put up a temporary link antenna at Naracoorte and the link has been turned on. Things need to be working well again. Well done Ross &#8211; a high gain home brew 10 element beam is doing the job very nicely. Great to have the whole network back on again<\/li><li>Peter VK5BE has been busy too. He grabbed one of our spare cavities from the clubrooms and tuned it up as a band pass filter using his tracking generator\/spectrum analyser. The idea being to cut out harmonics from the 146.9MHz transmitter on the basis that maybe the mixing products we have been experiencing are related to a harmonic mix. The first harmonic at 293.8MHz is now filtered out by at least 40db and higher harmonics even further down. Peter installed it at The Bluff today (8\/4\/21) and so far so good, no noise. Have we spoken too soon! Thank you Robin for being the testing station from the Mt Gambier end. We&#8217;ve lost a little output power but if that means no noise I think we can tolerate that.<\/li><\/ol>\n\n\n\n<p><strong>Update: Spoke too soon. Still having noise problems, maybe, just maybe, not as bad. Seems OK on weekends but weekdays are a different matter.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"866\" src=\"https:\/\/serg.org.au\/wp-content\/uploads\/2021\/04\/Ncte-temp-link.jpg\" alt=\"\" class=\"wp-image-3587\" srcset=\"https:\/\/serg.org.au\/wp-content\/uploads\/2021\/04\/Ncte-temp-link.jpg 400w, https:\/\/serg.org.au\/wp-content\/uploads\/2021\/04\/Ncte-temp-link-139x300.jpg 139w\" sizes=\"auto, (max-width: 400px) 85vw, 400px\" \/><figcaption>The temporary link antenna at Naracoorte built and placed by Ross VK3KBO. Network all working again.<\/figcaption><\/figure><\/div>\n ","protected":false},"excerpt":{"rendered":"<p>Two hard working people today. Ross VK3KBO has put up a temporary link antenna at Naracoorte and the link has been turned on. Things need to be working well again. Well done Ross &#8211; a high gain home brew 10 element beam is doing the job very nicely. Great to have the whole network back &hellip; <a href=\"https:\/\/serg.org.au\/index.php\/2021\/04\/08\/naracoorte-back-on-and-possible-solution-to-noise\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Naracoorte back on and possible solution to noise&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3586","post","type-post","status-publish","format-standard","hentry","category-posts"],"_links":{"self":[{"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/posts\/3586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/comments?post=3586"}],"version-history":[{"count":0,"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/posts\/3586\/revisions"}],"wp:attachment":[{"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/media?parent=3586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/categories?post=3586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serg.org.au\/index.php\/wp-json\/wp\/v2\/tags?post=3586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}