{"id":254,"date":"2023-01-26T22:44:53","date_gmt":"2023-01-26T21:44:53","guid":{"rendered":"http:\/\/sp5tof.vxm.pl\/?page_id=254"},"modified":"2025-11-21T18:42:39","modified_gmt":"2025-11-21T17:42:39","slug":"balcony-antenna-for-80-40m-by-ur5wca","status":"publish","type":"post","link":"https:\/\/sp5tof.pl\/?p=254","title":{"rendered":"Balcony antenna for 80-20m by UR5WCA"},"content":{"rendered":"

I made this antenna due to limited area condition in my flat.
\nI wasn’t expect too much of shorten antenna for HF frequencies, but surprised very positively.<\/br>
\nAntenna consists of two PCV tubes (I do not recommend grey sewage pipe, becouse it can contains metal admixture in its structure) and transformer. Both tubes have length of 1,5m each. Horizontal distance between them is 1m. <\/br>
\nTransformer is coiled based on Valery’s (UR5WCA) instruction<\/a> with Amidon T200-2. <\/br>
\nAntenna receives very strong local stations on 80m (it operates with high angle).<\/br>
\nYou can use transmit power up to 300W (I was using 100W). Antenna doesn’t require antenna tuner on 80m & 40m(SWR 1.2 – 1.7). It can be necessary with higher bands.<\/br><\/p>\n

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I would like to thank Cezary 161BD850 for support with coiling the transformer.<\/br><\/p>\n

Jakub\/SP5TOF<\/p>\n","protected":false},"excerpt":{"rendered":"

I made this antenna due to limited area condition in my flat. I wasn’t expect too much of shorten antenna for HF frequencies, but surprised very positively. Antenna consists of… <\/p>\n","protected":false},"author":1,"featured_media":260,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-254","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-radio"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/posts\/254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=254"}],"version-history":[{"count":12,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/posts\/254\/revisions"}],"predecessor-version":[{"id":337,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/posts\/254\/revisions\/337"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=\/wp\/v2\/media\/260"}],"wp:attachment":[{"href":"https:\/\/sp5tof.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sp5tof.pl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}