{"id":3622,"date":"2020-08-09T10:50:50","date_gmt":"2020-08-09T10:50:50","guid":{"rendered":"http:\/\/www.tsgarc.uk\/?p=3622"},"modified":"2020-08-09T10:50:53","modified_gmt":"2020-08-09T10:50:53","slug":"uk-antennas-end-fed-half-wave","status":"publish","type":"post","link":"https:\/\/www.tsgarc.uk\/?p=3622","title":{"rendered":"Uk Antennas End fed half wave"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/www.tsgarc.uk\/wp-content\/uploads\/2020\/08\/wspr-test-09-08-2020.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3625\" src=\"https:\/\/i0.wp.com\/www.tsgarc.uk\/wp-content\/uploads\/2020\/08\/wspr-test-09-08-2020.png?resize=300%2C187\" alt=\"\" width=\"300\" height=\"187\" srcset=\"https:\/\/i0.wp.com\/www.tsgarc.uk\/wp-content\/uploads\/2020\/08\/wspr-test-09-08-2020.png?resize=300%2C187&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.tsgarc.uk\/wp-content\/uploads\/2020\/08\/wspr-test-09-08-2020.png?resize=768%2C478&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.tsgarc.uk\/wp-content\/uploads\/2020\/08\/wspr-test-09-08-2020.png?resize=482%2C300&amp;ssl=1 482w, https:\/\/i0.wp.com\/www.tsgarc.uk\/wp-content\/uploads\/2020\/08\/wspr-test-09-08-2020.png?w=811&amp;ssl=1 811w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Thinking about a suitable antenna for use with a kite i decided to purchase UK antennas multi band end fed.<\/p>\n<p><a href=\"https:\/\/ukantennas.co.uk\/product\/multi-band-end-fed-antenna-with-mounting-bracket-80-40-20-17-15-12-10m\/?v=79cba1185463\">end-fed-antenna-with-mounting-bracket-80-40-20-17-15-12-10m<\/a><\/p>\n<p>It seemed sensible to test the antenna matching before attaching it to a kite however the half wave for 80m was too long to put up at my QTH so i swapped it out for a half wave on 40m and attached it to the matching unit; using a mini VNA and MFJ 259B\u00a0 i set about matching the radiator. The starting point indicated resonance at 6.6mhz so trimming the length i slowly brought it to resonance at 7.04mhz with vswr of 1: 1.2. To achieve this i had to attach a counterpoise of 3m, my only criticism being there was no attachment point for a counterpoise.<br \/>\nThe screen shot shows the WSPR test at 200mw from my QTH on the 09\/08\/2020.<br \/>\nA\u00a0 CW QSO into Kazakhstan at 50 watts was also achieved, it seems to work well.<\/p>\n<p>Conclusion<br \/>\nGreat antenna IP65 rating with good mounting clamp setup will report back when i test the full 80m half wave antenna supplied with the unit at field day.<\/p>\n<p>John m0hfh<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Thinking about a suitable antenna for use with a kite i decided to purchase UK antennas multi band end fed. end-fed-antenna-with-mounting-bracket-80-40-20-17-15-12-10m It seemed sensible to test the antenna matching before attaching it to a kite however the half wave for &hellip; <a href=\"https:\/\/www.tsgarc.uk\/?p=3622\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on wp_trim_excerpt --><!-- AddThis Share Buttons generic via filter on wp_trim_excerpt --><\/p>\n","protected":false},"author":75,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[],"class_list":["post-3622","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts\/3622","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/users\/75"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3622"}],"version-history":[{"count":5,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts\/3622\/revisions"}],"predecessor-version":[{"id":3629,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=\/wp\/v2\/posts\/3622\/revisions\/3629"}],"wp:attachment":[{"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tsgarc.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}