{"id":55290,"date":"2023-01-10T06:55:40","date_gmt":"2023-01-10T10:55:40","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=55290"},"modified":"2023-01-10T06:55:40","modified_gmt":"2023-01-10T10:55:40","slug":"born-in-the-er-andrews-portable-sula-antenna","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2023\/01\/born-in-the-er-andrews-portable-sula-antenna\/","title":{"rendered":"Born in the ER: Andrew’s portable SULA antenna"},"content":{"rendered":"

\"\"<\/a>Many thanks to SWLing Post<\/em> contributor, Andrew (VK2ZRK), who writes:<\/strong><\/p>\n

Just thought I would share some pics of my SULA build<\/a> which I constructed in the Emergency department\u2019s antenna building section in between catastrophies here in Australia.<\/p>\n

I built it out of 8mm fibreglass tube from a kite supply, 8mm kite nocks, 13mm equal cross irrigation fitting and lots of double wall glue lined heat shrink. The 8mm tube with a short bit of heat shrink is a slip fit into the id of the 13mm equal cross which I secured with more heat shrink.<\/p>\n

\"\"<\/a><\/p>\n

I then cut the frame to length allowing for the length of the kite nocks. I secured the kite nocks with more heat shrink. I then soldered the resister to 2 lengths of Davis RF 12g antenna wire and fed this through the kite nocks terminating it at the nooelec balun on the opposite side to the resistor.<\/p>\n

\"\"<\/a><\/p>\n

I think it worked out well. It is very light. I built it to use with my SDRPlay RSPdx<\/a>.<\/p>\n

Thank you to everyone involved in the design process and for providing it to the swling.com community.<\/p>\n

Cheers
\nAndrew VK2ZRK<\/p>\n

In all the years I’ve been hosting the SWLing Post<\/em>, I can safely say that we’ve never featured an antenna constructed in an Emergency Department of a hospital. Thank you, Andrew!<\/strong><\/p>\n

The feedback from the SULA antenna build has been phenomenal. The three-part series<\/a> detailing the SULA antenna from concept to build was the most popular of 2022 on the SWLing Post<\/em>.\u00a0<\/strong><\/p>\n

Thank you for sharing the photos of your antenna. What a professional job, Andrew!<\/strong><\/p>\n

Readers, if you’d like to learn more about the SULA antenna, check out this three-part series<\/a>–a collaboration between the amazing Grayhat<\/a>\u00a0and\u00a013dka<\/a>.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Many thanks to SWLing Post contributor, Andrew (VK2ZRK), who writes: Just thought I would share some pics of my SULA build which I constructed in the Emergency department\u2019s antenna building section in between catastrophies here in Australia. I built it out of 8mm fibreglass tube from a kite supply, 8mm kite nocks, 13mm equal cross […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3607,3194,3,43],"tags":[10094,1643,9934,9932],"class_list":["post-55290","post","type-post","status-publish","format-standard","hentry","category-antennas","category-guest-posts","category-news","category-shortwave-radio","tag-andrew-vk2zrk","tag-antennas","tag-small-unidirectional-loop-antenna-sula","tag-sula"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-enM","jetpack-related-posts":[{"id":53758,"url":"https:\/\/swling.com\/blog\/2022\/08\/small-unidirectional-loop-antenna-sula-part-2-construction-notes\/","url_meta":{"origin":55290,"position":0},"title":"Small Unidirectional Loop Antenna (SULA) Part 2: Construction Notes","author":"13dka","date":"August 21, 2022","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor extraordinaire,\u00a013dka, who brings us Part Two of a three part series about the new SULA homebrew antenna project. This first article describes this affordable antenna and demonstrates its unique reception properties. This second article focuses on construction notes. The third and final article will essentially be\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SDL-Bazinga_total_APT.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SDL-Bazinga_total_APT.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SDL-Bazinga_total_APT.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":53711,"url":"https:\/\/swling.com\/blog\/2022\/08\/introducing-the-amazing-sula-an-affordable-unidirectional-dx-grade-loop-antenna-that-you-can-build\/","url_meta":{"origin":55290,"position":1},"title":"Introducing the amazing SULA: An affordable unidirectional DX-grade loop antenna that you can build!","author":"13dka","date":"August 18, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor extraordinaire, 13dka, who brings us a three part series about the new SULA homebrew antenna project. This first article describes this affordable antenna and demonstrates its unique reception properties. The second article will focus on construction notes. The third and final article will essentially\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SDL-Bazinga_total_APT.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SDL-Bazinga_total_APT.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SDL-Bazinga_total_APT.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":53845,"url":"https:\/\/swling.com\/blog\/2022\/08\/small-unidirectional-loop-antenna-sula-part-3-questions-answers\/","url_meta":{"origin":55290,"position":2},"title":"Small Unidirectional Loop Antenna (SULA) Part 3: Questions & Answers","author":"13dka","date":"August 31, 2022","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor extraordinaire,\u00a013dka, who brings us Part Two of a three part series about the new SULA homebrew antenna project.\u00a0This first article describes this affordable antenna and demonstrates its unique reception properties. The second article focuses on construction notes. This third and final article will essentially be a\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SULA_alt_LNA_pos-scaled.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SULA_alt_LNA_pos-scaled.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SULA_alt_LNA_pos-scaled.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SULA_alt_LNA_pos-scaled.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SULA_alt_LNA_pos-scaled.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/SULA_alt_LNA_pos-scaled.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":26839,"url":"https:\/\/swling.com\/blog\/2017\/07\/the-wdx2radio-timeless-classic-longwire-antenna\/","url_meta":{"origin":55290,"position":3},"title":"The WDX2RADIO Timeless Classic longwire antenna","author":"Thomas","date":"July 2, 2017","format":false,"excerpt":"Mike (N1YKH) writes: Hi Thomas, Just wanted to promote an antenna I sell for a fellow HAM, It sells via http:\/\/www.dipolesusa.com\/shortwave.html WDX2RADIO Timeless Classic. 50' foot longwire antenna kit w\/ 25' foot lead in, quick clip (to click onto a telescoping antenna), wire connector ends to radio, twine, shrink tube\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/Wire-Antenna-SWL-e1498993214379.jpeg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/Wire-Antenna-SWL-e1498993214379.jpeg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/Wire-Antenna-SWL-e1498993214379.jpeg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/Wire-Antenna-SWL-e1498993214379.jpeg?resize=700%2C400 2x"},"classes":[]},{"id":42595,"url":"https:\/\/swling.com\/blog\/2020\/04\/diy-how-to-build-a-noise-cancelling-passive-loop-ncpl-antenna\/","url_meta":{"origin":55290,"position":4},"title":"DIY: How to build a Noise-Cancelling Passive Loop (NCPL) antenna","author":"Thomas","date":"April 5, 2020","format":false,"excerpt":"I've gotten an number of inquiries from SWLing Post readers asking for a step-by-step guide to building the passive loop antenna I've mentioned in a number of previous posts. This antenna is the homebrew version of the commercially-available\u00a0 Airspy Youloop. It works a treat. And, yes, folks...it's fun to build.\u2026","rel":"","context":"In "Accessories"","block_context":{"text":"Accessories","link":"https:\/\/swling.com\/blog\/category\/accessories\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/04\/Inked-SpyTenna3-e1585933710848.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/04\/Inked-SpyTenna3-e1585933710848.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/04\/Inked-SpyTenna3-e1585933710848.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/04\/Inked-SpyTenna3-e1585933710848.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":23072,"url":"https:\/\/swling.com\/blog\/2016\/12\/video-gary-debocks-baby-fsl-antenna\/","url_meta":{"origin":55290,"position":5},"title":"Video: Gary DeBock’s “Baby FSL” antenna","author":"Thomas","date":"December 30, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Gary DeBock (N7EKX), who shares this video and notes the following on YouTube: This is the new 3.5 inch (89mm) \"Baby FSL\" antenna, designed to provide a powerful DXing gain boost for Ultralight radios (or any other portables) despite its very small size. It has\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/BabyFSL.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/BabyFSL.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/BabyFSL.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/55290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=55290"}],"version-history":[{"count":1,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/55290\/revisions"}],"predecessor-version":[{"id":55295,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/55290\/revisions\/55295"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=55290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=55290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=55290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}