{"id":61206,"date":"2024-11-27T06:45:57","date_gmt":"2024-11-27T10:45:57","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=61206"},"modified":"2024-11-26T06:48:35","modified_gmt":"2024-11-26T10:48:35","slug":"bbc-rd-how-to-test-a-loop-antenna","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2024\/11\/bbc-rd-how-to-test-a-loop-antenna\/","title":{"rendered":"BBC R&D: How to test a loop antenna"},"content":{"rendered":"

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

Thomas,<\/p>\n

You have had quite a few posts on loop antennas. I found a technical article about how to accurately test them.<\/p>\n

I have just come across this article which you may find interesting. It comes from the BBC Research and Development:<\/p>\n

https:\/\/www.bbc.co.uk\/rd\/publications\/measurement-magnetic-loop-antenna-performance<\/a><\/p>\n

It is written by a real Broadcast Engineer.<\/p>\n

Alan<\/p>\n

Thanks for the tip, Alan!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Many thanks to SWLing Post contributor, Alan, who writes: Thomas, You have had quite a few posts on loop antennas. I found a technical article about how to accurately test them. I have just come across this article which you may find interesting. It comes from the BBC Research and Development: https:\/\/www.bbc.co.uk\/rd\/publications\/measurement-magnetic-loop-antenna-performance It is written […]<\/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":[3],"tags":[],"class_list":["post-61206","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-fVc","jetpack-related-posts":[{"id":61335,"url":"https:\/\/swling.com\/blog\/2024\/12\/here-we-go-loop-de-loop-in-which-your-humble-correspondent-tests-a-hypothesis\/","url_meta":{"origin":61206,"position":0},"title":"Here we go loop de loop . . . in which your humble correspondent tests a hypothesis","author":"Jock Elliott","date":"December 10, 2024","format":false,"excerpt":"By Jock Elliott, KB2GOM It was this post by Alan -- https:\/\/swling.com\/blog\/2024\/11\/bbc-rd-how-to-test-a-loop-antenna\/ -- that set me off. After downloading the BBC report on how to test a loop antenna, I noticed the following in it: \u201cPolarisation Illustrations of the antenna usually show it mounted upright; that is, with its axis\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\/2024\/12\/MW-amp-001-1024x431.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/12\/MW-amp-001-1024x431.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/12\/MW-amp-001-1024x431.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":61402,"url":"https:\/\/swling.com\/blog\/2024\/12\/the-great-gonzo-radio-experiment\/","url_meta":{"origin":61206,"position":1},"title":"The Great Gonzo Radio Experiment","author":"Jock Elliott","date":"December 14, 2024","format":false,"excerpt":"By Jock Elliott, KB2GOM It\u2019s funny how you can start out thinking about how to solve a problem, the whole process takes a turn, and you wind up with an unexpected but pleasing result. It all started innocently enough. Alan posted this \u2014 https:\/\/swling.com\/blog\/2024\/11\/bbc-rd-how-to-test-a-loop-antenna\/ \u2014 and this statement appeared at\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\/2024\/12\/Great-radio-experiment-and-skies-019-1024x768.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/12\/Great-radio-experiment-and-skies-019-1024x768.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/12\/Great-radio-experiment-and-skies-019-1024x768.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":51741,"url":"https:\/\/swling.com\/blog\/2022\/02\/giuseppes-portable-multi-loop-homemade-shoe-rack-antenna\/","url_meta":{"origin":61206,"position":2},"title":"Giuseppe’s portable multi-loop homemade shoe rack antenna","author":"Thomas","date":"February 2, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Giuseppe Morl\u00e8, who writes: Dear Thomas, I'm Giuseppe Morl\u00e8 iz0gzw from central Italy on the Tyrrhenian Sea, Formia. I am sending you this umpteenth project of mine built with poor materials...it is a test bench, loops \/ capacitors to find the best tuning. The\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\/02\/Shoe-Rack-antenna-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/02\/Shoe-Rack-antenna-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/02\/Shoe-Rack-antenna-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/02\/Shoe-Rack-antenna-1.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":44722,"url":"https:\/\/swling.com\/blog\/2020\/08\/jorges-portable-youloop-antenna-frame\/","url_meta":{"origin":61206,"position":3},"title":"Jorge’s Portable YouLoop Antenna Frame","author":"Thomas","date":"August 9, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Jorge Garz\u00f3n (EB7EFA \u00b7 EA1036 SWL), who shares the following guest post which was originally published on his @IberiaDX blog: BricoDX: A YouLoop portable frame by Jorge Garz\u00f3n (EB7EFA \u00b7 EA1036 SWL) One of the\u00a0aerials I wanted to test was the Youssef Loop (YouLoop).\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\/2020\/08\/youloop_arm.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":43511,"url":"https:\/\/swling.com\/blog\/2020\/05\/guest-post-kk5jys-porch-loop-receiving-antenna\/","url_meta":{"origin":61206,"position":4},"title":"Guest Post: KK5JY’s Porch Loop Receiving Antenna","author":"Thomas","date":"May 25, 2020","format":false,"excerpt":"Many thanks to Matt Roberts (KK5JY) who has kindly given me permission to re-post the following article he recently published on his website KK5JY.net. Many thanks to SWLing Post contributor, Grayhat, for the tip! \u00a0Note: The Porch Loop project below is a re-configured Small Receiving Loop (SRL) antenna. For SRL\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\/2020\/05\/40m-10h-Porch-Loop-results.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/05\/40m-10h-Porch-Loop-results.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/05\/40m-10h-Porch-Loop-results.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/05\/40m-10h-Porch-Loop-results.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":28543,"url":"https:\/\/swling.com\/blog\/2017\/09\/larrys-variation-of-the-w6lvp-amplified-magnetic-loop-antenna\/","url_meta":{"origin":61206,"position":5},"title":"Larry’s variation of the W6LVP amplified magnetic loop antenna","author":"Thomas","date":"September 28, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Larry Thompson (WPE8EKM), who writes: I\u2019ve just finished building a variation of the W6LVP amplified magnetic loop antenna. I was able to purchase the preamplifier, power inserter, and the power supply separately. I then created my own loop antenna using LMR400Max coax and designed my\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\/09\/Loop-Antenna.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/Loop-Antenna.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/09\/Loop-Antenna.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/61206","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=61206"}],"version-history":[{"count":1,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/61206\/revisions"}],"predecessor-version":[{"id":61207,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/61206\/revisions\/61207"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=61206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=61206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=61206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}