{"id":63080,"date":"2025-06-07T06:19:39","date_gmt":"2025-06-07T10:19:39","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=63080"},"modified":"2025-06-07T06:19:39","modified_gmt":"2025-06-07T10:19:39","slug":"sporadic-e-and-fm-dxing","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2025\/06\/sporadic-e-and-fm-dxing\/","title":{"rendered":"Sporadic-E and FM DXing"},"content":{"rendered":"<p class=\"p1\"><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/XHDATA-D-808-RDS-FM.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-31429\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/XHDATA-D-808-RDS-FM.jpg\" alt=\"\" width=\"879\" height=\"659\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/XHDATA-D-808-RDS-FM.jpg 879w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/XHDATA-D-808-RDS-FM-300x225.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/XHDATA-D-808-RDS-FM-768x576.jpg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/XHDATA-D-808-RDS-FM-624x468.jpg 624w\" sizes=\"auto, (max-width: 879px) 100vw, 879px\" \/><\/a>Many thanks to <i>SWLing Post<\/i> contributor <span class=\"s1\">Alan<\/span>, who shares t<span style=\"font-size: 1rem;\">his <\/span><i style=\"font-size: 1rem;\">Radio World<\/i><span style=\"font-size: 1rem;\"> piece which explores the fascinating world of long-distance FM reception via sporadic-E (E-skip), including rare double-hop events:<\/span><span class=\"s2\" style=\"font-size: 1rem;\">\u00a0<a href=\"https:\/\/www.radioworld.com\/columns-and-views\/double-hop-dreams-and-the-mystery-of-long-distance-fm\" target=\"_blank\" rel=\"noopener\"><span class=\"s1\"><b>Double-Hop Dreams and the Mystery of Long-Distance FM<\/b><\/span><\/a><\/span><\/p>\n<p class=\"p1\">\u00a0A great read for anyone interested in the world of VHF propagation!<\/p>\n<p class=\"p1\">Alan also shared these resources:<\/p>\n<ul>\n<li><span class=\"s1\"><a href=\"https:\/\/www.sws.bom.gov.au\/Radio_Communication\/1\/3\" target=\"_blank\" rel=\"noopener\"><span class=\"s2\"><b>Australian Bureau of Meteorology \u2013 Propagation Modes<\/b><\/span><\/a>: <\/span>Learn about various propagation mechanisms, including transequatorial propagation.<\/li>\n<li class=\"p1\"><span class=\"s1\"><a href=\"https:\/\/www.heywhatsthat.com\/profiler.html\" target=\"_blank\" rel=\"noopener\"><span class=\"s2\"><b>HeyWhatsthat.com Path Profiler<\/b><b><\/b><\/span><\/a>:\u00a0<\/span>Calculate great-circle paths, view terrain profiles, and check Fresnel zones. Ideal for evaluating DX paths and terrain obstructions.<\/li>\n<li class=\"p1\"><span class=\"s1\"><a href=\"https:\/\/www.fcc.gov\/media\/radio\/fm-query\" target=\"_blank\" rel=\"noopener\"><span class=\"s2\"><b>FCC FM Query<\/b><b><\/b><\/span><\/a>:\u00a0<\/span>Look up FM station data, including transmitter location, ERP, and HAAT\u2014helpful for assessing potential reception range, even for low-power stations.<\/li>\n<\/ul>\n<p>Thanks, Alan!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor Alan, who shares this Radio World piece which explores the fascinating world of long-distance FM reception via sporadic-E (E-skip), including rare double-hop events:\u00a0Double-Hop Dreams and the Mystery of Long-Distance FM \u00a0A great read for anyone interested in the world of VHF propagation! Alan also shared these resources: Australian Bureau [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_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},"jetpack_post_was_ever_published":false},"categories":[5935,3781,3],"tags":[8340,2918,2919,634,8341],"class_list":["post-63080","post","type-post","status-publish","format-standard","hentry","category-dx","category-fm","category-news","tag-e-skip","tag-fm-dx","tag-fm-dxing","tag-radio-world","tag-sporadic-e"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-gpq","jetpack-related-posts":[{"id":49886,"url":"https:\/\/swling.com\/blog\/2021\/08\/summer-fm-dx-drive-by-sporadic-e\/","url_meta":{"origin":63080,"position":0},"title":"Summer FM DX: Drive-by Sporadic E","author":"Thomas","date":"August 6, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, TomL, who shares the following guest post: Summer DX \u2013 Sporadic E, FM band \u201cSporadic E\u201d DXing is a specialty of some DXers.\u00a0 I have never dabbled in it being content with mediumwave or shortwave listening.\u00a0 However, it was truly fun to spontaneously hear\u2026","rel":"","context":"In &quot;FM&quot;","block_context":{"text":"FM","link":"https:\/\/swling.com\/blog\/category\/fm\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/08\/Car-Radio-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/08\/Car-Radio-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/08\/Car-Radio-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/08\/Car-Radio-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/08\/Car-Radio-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":20048,"url":"https:\/\/swling.com\/blog\/2016\/07\/fm-dxing-troys-unexpected-catch\/","url_meta":{"origin":63080,"position":1},"title":"FM DXing: Troy&#8217;s unexpected catch","author":"Thomas","date":"July 17, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Troy Riedel, who writes: Thomas, if I were to read this on your blog, I would not have believed the following. I live in Virginia nearly equidistant from RIC\/Richmond Int'l AP (east of Richmond) and PHF AP (in Newport News). I had a 1:40 P.M.\u2026","rel":"","context":"In &quot;FM&quot;","block_context":{"text":"FM","link":"https:\/\/swling.com\/blog\/category\/fm\/"},"img":{"alt_text":"Troy-FM-DX","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Troy-FM-DX.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Troy-FM-DX.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Troy-FM-DX.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Troy-FM-DX.jpg?resize=700%2C400 2x"},"classes":[]},{"id":33161,"url":"https:\/\/swling.com\/blog\/2018\/07\/impressive-transatlantic-fm-dx-newfoundland-to-northern-ireland-on-88-5-mhz\/","url_meta":{"origin":63080,"position":2},"title":"Impressive Transatlantic FM DX: Newfoundland to Northern Ireland on 88.5 MHz","author":"Thomas","date":"July 11, 2018","format":false,"excerpt":"(Source: Southgate ARC) 88 MHz Trans-Atlantic signals heard in Ireland On Sunday the 8th of July 2018, there was a remarkable opening on the VHF bands across the North Atlantic. While there were plenty of strong multi-hop Sporadic-E signals on the 28 MHz and 50 MHz bands, the maximum qusable\u2026","rel":"","context":"In &quot;DX&quot;","block_context":{"text":"DX","link":"https:\/\/swling.com\/blog\/category\/dx\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/Elad-FDM-S2-FM-DX.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/Elad-FDM-S2-FM-DX.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/Elad-FDM-S2-FM-DX.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":65912,"url":"https:\/\/swling.com\/blog\/2026\/05\/dx-central-sedap-a-sporadic-es-data-analysis-dashboard\/","url_meta":{"origin":63080,"position":3},"title":"DX Central SEDAP: A Sporadic Es Data Analysis Dashboard","author":"Thomas","date":"May 1, 2026","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor, Loyd Van Horn, who shares the following announcement: FOR IMMEDIATE RELEASE DX Central Unveils SEDAP: The World\u2019s Most Advanced Sporadic Es Data Analysis Dashboard for the FM DX Community MANDEVILLE, La. \u2014 April 29, 2026 \u2014 DX Central is proud to announce the official launch of\u2026","rel":"","context":"In &quot;FM&quot;","block_context":{"text":"FM","link":"https:\/\/swling.com\/blog\/category\/fm\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/04\/SEDAP-Banner.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/04\/SEDAP-Banner.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/04\/SEDAP-Banner.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/04\/SEDAP-Banner.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/04\/SEDAP-Banner.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/04\/SEDAP-Banner.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":56550,"url":"https:\/\/swling.com\/blog\/2023\/05\/dx-central-announces-inaugural-grand-slam-dx-challenge\/","url_meta":{"origin":63080,"position":4},"title":"DX Central Announces Inaugural Grand Slam DX Challenge!","author":"Thomas","date":"May 6, 2023","format":false,"excerpt":"Many thanks to SWLing Post contributor, Loyd Van Horn, who shares the following announcement: DX Central Announces Inaugural Grand Slam DX Challenge Chances are, if you ask a DXer how they began their love of DX, many will tell you it all began by searching through the static for the\u2026","rel":"","context":"In &quot;AM&quot;","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\/2023\/05\/DXC-Grand-Slam-Challenge-Cover-with-logo-High-Quality-JPG.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/05\/DXC-Grand-Slam-Challenge-Cover-with-logo-High-Quality-JPG.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/05\/DXC-Grand-Slam-Challenge-Cover-with-logo-High-Quality-JPG.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/05\/DXC-Grand-Slam-Challenge-Cover-with-logo-High-Quality-JPG.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/05\/DXC-Grand-Slam-Challenge-Cover-with-logo-High-Quality-JPG.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/05\/DXC-Grand-Slam-Challenge-Cover-with-logo-High-Quality-JPG.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":38076,"url":"https:\/\/swling.com\/blog\/2019\/06\/guest-post-roseanna-snags-some-unexpected-fm-dx\/","url_meta":{"origin":63080,"position":5},"title":"Guest Post: Roseanna snags some unexpected FM DX","author":"Thomas","date":"June 5, 2019","format":false,"excerpt":"Many thanks to SWLing Post contributor, Roseanna, who shares the following guest post originally published on her blog, The Girl with the Radio: Unexpected FM madness! I would like tho share with you a once in a lifetime Sporadic-E event that happened to me today along with videos of the\u2026","rel":"","context":"In &quot;DX&quot;","block_context":{"text":"DX","link":"https:\/\/swling.com\/blog\/category\/dx\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Screen-Shot-2019-06-05-at-7.12.26-AM.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Screen-Shot-2019-06-05-at-7.12.26-AM.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Screen-Shot-2019-06-05-at-7.12.26-AM.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Screen-Shot-2019-06-05-at-7.12.26-AM.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/63080","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=63080"}],"version-history":[{"count":1,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/63080\/revisions"}],"predecessor-version":[{"id":63081,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/63080\/revisions\/63081"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=63080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=63080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=63080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}