{"id":63408,"date":"2025-07-18T07:10:31","date_gmt":"2025-07-18T11:10:31","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=63408"},"modified":"2025-07-18T07:10:31","modified_gmt":"2025-07-18T11:10:31","slug":"history-of-the-radio-intelligence-division-before-and-during-world-war-ii","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2025\/07\/history-of-the-radio-intelligence-division-before-and-during-world-war-ii\/","title":{"rendered":"History of the Radio Intelligence Division Before and During World War II"},"content":{"rendered":"<p><strong><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-63409\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1.jpeg\" alt=\"\" width=\"1200\" height=\"767\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1.jpeg 1200w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1-300x192.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1-1024x655.jpeg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1-768x491.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/07\/Signal-Corps-1-624x399.jpeg 624w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a>Many thanks to <em>SWLing Post<\/em> contributor Mike, who writes:<\/strong><\/p>\n<p style=\"padding-left: 40px;\">Good afternoon, Thomas. Recalling that there have been a few postings on the <em>SWLing Post<\/em> over time on the FCC&#8217;s Radio Intelligence Division, I thought this might interest you and some readers. I just came across this (I don&#8217;t even remember what linked me to it) and have only briefly looked reviewed it, but the manuscript appears to be pretty interesting. <a href=\"https:\/\/www.qsl.net\/w3df\/sterling\/ridhist.pdf\" target=\"_blank\" rel=\"noopener\">https:\/\/www.qsl.net\/w3df\/sterling\/ridhist.pdf\u00a0<\/a><\/p>\n<p style=\"padding-left: 40px;\">Additional history can be found here:\u00a0<a href=\"https:\/\/www.qsl.net\/w3df\/sterling\/dfh1.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.qsl.net\/w3df\/sterling\/dfh1.html<\/a>.<\/p>\n<p style=\"padding-left: 40px;\">An interesting local (to me) tidbit on page 19: &#8220;<em>It [RID] patrolled the outside of the Oak Ridge, Tennessee installation, the scene of the Manhattan Project but without the personnel knowing what atomic developments <\/em><em>were being made inside.<\/em>&#8220;<\/p>\n<p style=\"padding-left: 40px;\">73,<br \/>\nMike in Knoxville,<br \/>\nKW1ND<\/p>\n<p><strong>Fascinating! Thank you for sharing this, Mike.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor Mike, who writes: Good afternoon, Thomas. Recalling that there have been a few postings on the SWLing Post over time on the FCC&#8217;s Radio Intelligence Division, I thought this might interest you and some readers. I just came across this (I don&#8217;t even remember what linked me to it) [&hellip;]<\/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":[3,305,288,7566,43],"tags":[4091,4869,676,1301],"class_list":["post-63408","post","type-post","status-publish","format-standard","hentry","category-news","category-nostalgia","category-radio-history","category-radio-memories","category-shortwave-radio","tag-radio-history","tag-us-signal-corps","tag-wwii","tag-wwii-radio"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-guI","jetpack-related-posts":[{"id":47424,"url":"https:\/\/swling.com\/blog\/2021\/01\/don-discovers-a-treasure-trove-of-digitized-vintage-radio-books-and-magazines\/","url_meta":{"origin":63408,"position":0},"title":"Don discovers a treasure trove of digitized vintage radio books and magazines","author":"Thomas","date":"January 20, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Don (W7SSB), who writes: I thought these links might be of interest to your readers: https:\/\/www.qsl.net\/va3iul\/Files\/Old_Radio_Frequency_Books.htm https:\/\/www.qsl.net\/va3iul\/ Brilliant! Thanks for the tip, Don! Of course, another deep treasure trove is the World Radio History website.","rel":"","context":"In &quot;Books&quot;","block_context":{"text":"Books","link":"https:\/\/swling.com\/blog\/category\/books\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/books.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/books.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/books.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/books.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/books.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":55058,"url":"https:\/\/swling.com\/blog\/2022\/12\/awa-video-presentation-patrolling-the-ether-in-ww2-radio-intelligence-for-the-war-effort\/","url_meta":{"origin":63408,"position":1},"title":"AWA Video Presentation: Patrolling the Ether in WW2 &#8211; Radio Intelligence for the War Effort","author":"Thomas","date":"December 16, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Mark (AE2EA), who writes: One of our AWA Members recently made this video on the Foreign Broadcast Monitoring Service (FBMS) and the Radio Intelligence Division (RID) during World War 2. I think it might be of interest to your SWLing enthusiasts: https:\/\/youtu.be\/8qwn--BTT8E Click here\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Command-Set-WWII-Encampment.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Command-Set-WWII-Encampment.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Command-Set-WWII-Encampment.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Command-Set-WWII-Encampment.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Command-Set-WWII-Encampment.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":33209,"url":"https:\/\/swling.com\/blog\/2018\/07\/kris-recognizes-italian-receiver-in-the-same-sky\/","url_meta":{"origin":63408,"position":2},"title":"Kris recognizes Italian receiver in &#8220;The Same Sky&#8221;","author":"Thomas","date":"July 16, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor, Kris Partridge, who shares the following comment regarding John Harper's recent post: The receiver which featured in Same Sky is of Italian manufacture, it\u2019s from Geloso but I\u2019m not able to identify which model. Here is a link to a very interest and comprehensive\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/The-Same-Sky-Screenshot-Numbers-Station.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/The-Same-Sky-Screenshot-Numbers-Station.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/The-Same-Sky-Screenshot-Numbers-Station.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/The-Same-Sky-Screenshot-Numbers-Station.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":22745,"url":"https:\/\/swling.com\/blog\/2016\/12\/the-role-of-radio-intelligence-before-the-pearl-harbor-attack\/","url_meta":{"origin":63408,"position":3},"title":"The role of radio intelligence before the Pearl Harbor attack","author":"Thomas","date":"December 7, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Michael Guerin, who writes: Interesting article from the US Naval Institute on the role of radio intelligence before and during the December 7 attack. \"The key to the success of the Japanese attack on Pearl Harbor-specifically, what enabled the Pearl Harbor Striking Force to reach\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Attack_on_Pearl_Harbor_Japanese_planes_view-1024x726.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Attack_on_Pearl_Harbor_Japanese_planes_view-1024x726.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Attack_on_Pearl_Harbor_Japanese_planes_view-1024x726.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":14357,"url":"https:\/\/swling.com\/blog\/2015\/08\/rhode-islands-wwii-farmhouse-monitoring-station\/","url_meta":{"origin":63408,"position":4},"title":"Rhode Island&#8217;s WWII farmhouse monitoring station","author":"Thomas","date":"August 14, 2015","format":false,"excerpt":"Many thanks to SWLing Post reader, Mike (AC4NS), who shares a link to this fascinating article by Tom Mooney? in the TheProvidence Journal. Here's an excerpt: \"There was nothing remarkable to see on Chopmist Hill in 1940 when, a year before the Japanese would attack Pearl Harbor and bring America\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"SX-99-Dial","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":25367,"url":"https:\/\/swling.com\/blog\/2017\/04\/australian-code-breakers-in-world-war-ii\/","url_meta":{"origin":63408,"position":5},"title":"Australian code breakers in World War II","author":"Thomas","date":"April 25, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ian P, for sharing the following from the radio program,\u00a0ABC Overnights: The crucial role of Australian code breakers in World War 2 Thanks to the recent film, The Imitation Game, you may be familiar with the story of how British intelligence, led by mathematician\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/Mystery-Radio-Dial-1024x768.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/Mystery-Radio-Dial-1024x768.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/Mystery-Radio-Dial-1024x768.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/63408","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=63408"}],"version-history":[{"count":1,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/63408\/revisions"}],"predecessor-version":[{"id":63410,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/63408\/revisions\/63410"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=63408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=63408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=63408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}