{"id":66204,"date":"2026-05-28T09:07:09","date_gmt":"2026-05-28T13:07:09","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=66204"},"modified":"2026-05-28T09:07:09","modified_gmt":"2026-05-28T13:07:09","slug":"hackaday-looks-back-at-canadas-legendary-chu-time-station","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2026\/05\/hackaday-looks-back-at-canadas-legendary-chu-time-station\/","title":{"rendered":"Hackaday Looks Back at Canada\u2019s Legendary CHU Time Station"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-59964\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1.jpeg\" alt=\"\" width=\"1200\" height=\"680\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1.jpeg 1200w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1-300x170.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1-1024x580.jpeg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1-768x435.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/06\/Hallicrafters-Dial-Green-1-624x354.jpeg 624w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a>Many thanks to <em>SWling Post<\/em> contributor, Rich Cuff, who shares this piece from Hackaday: \u201c<a href=\"https:\/\/hackaday.com\/2026\/05\/27\/so-long-chu-and-thanks-for-all-the-time-signals\/\" target=\"_blank\" rel=\"noopener\">So Long, CHU, And Thanks For All The Time Signals.<\/a>\u201d It\u2019s well worth a read\u2014and if you\u2019ve never tuned in to CHU before, now may be your last chance.<\/p>\n<p>Read the full article here:<br \/>\n<a href=\"https:\/\/hackaday.com\/2026\/05\/27\/so-long-chu-and-thanks-for-all-the-time-signals\/\" target=\"_blank\" rel=\"noopener\">https:\/\/hackaday.com\/2026\/05\/27\/so-long-chu-and-thanks-for-all-the-time-signals\/<\/a><\/p>\n<p>Please note, I would appreciate any recordings of the final transmission to add to the <a href=\"http:\/\/shortwavearchive.com\" target=\"_blank\" rel=\"noopener\">Shortwave Radio Audio Archive<\/a>.<\/p>\n<p>Please read my previous comments about the CHU closure here: <a href=\"https:\/\/swling.com\/blog\/2026\/05\/canadas-chu-will-go-silent-on-shortwave-on-june-22-2026\/\" target=\"_blank\" rel=\"noopener\">https:\/\/swling.com\/blog\/2026\/05\/canadas-chu-will-go-silent-on-shortwave-on-june-22-2026\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWling Post contributor, Rich Cuff, who shares this piece from Hackaday: \u201cSo Long, CHU, And Thanks For All The Time Signals.\u201d It\u2019s well worth a read\u2014and if you\u2019ve never tuned in to CHU before, now may be your last chance. Read the full article here: https:\/\/hackaday.com\/2026\/05\/27\/so-long-chu-and-thanks-for-all-the-time-signals\/ Please note, I would appreciate any [&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":[3,43,9589],"tags":[13,4560,3354,2002],"class_list":["post-66204","post","type-post","status-publish","format-standard","hentry","category-news","category-shortwave-radio","category-utility","tag-chu","tag-chu-canada","tag-hackaday","tag-rich-cuff"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-hdO","jetpack-related-posts":[{"id":63912,"url":"https:\/\/swling.com\/blog\/2025\/09\/noise-reduction-ideas-via-hackaday-electronics-unmessed\/","url_meta":{"origin":66204,"position":0},"title":"Noise-Reduction Ideas via Hackaday &#038; Electronics Unmessed","author":"Thomas","date":"September 9, 2025","format":false,"excerpt":"Many thanks to SWLing Post contributor Dennis Dura for sharing this excellent Hackaday feature: Quieting That Radio. If you\u2019ve ever struggled to hear weak signals through modern RFI, this piece, featuring content from Electronics Unmessed, is well worth checking out. It explores the hidden interference SDR setups often face and\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\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/12\/Spectrum-Digital-Modes-e1482065447566.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":64588,"url":"https:\/\/swling.com\/blog\/2025\/11\/hackaday-the-cold-war-era-survivable-low-frequency-communication-system-slfcs\/","url_meta":{"origin":66204,"position":1},"title":"Hackaday: The Cold War-Era Survivable Low-Frequency Communication System (SLFCS)","author":"Thomas","date":"November 13, 2025","format":false,"excerpt":"Many thanks to SWLing Post contributor Dennis Dura, who shares the following article about Cold War\u2013era low-frequency communications, from Hackaday: During the Cold War, the U.S. developed the Survivable Low-Frequency Communication System (SLFCS) \u2014 a radio network designed to function even after a nuclear attack. Using long-wavelength LF and VLF\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\/2025\/11\/Oscar-Zero_Missile_Alert_Facility_Minuteman_ICBM_Launch_Control_20100410.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/11\/Oscar-Zero_Missile_Alert_Facility_Minuteman_ICBM_Launch_Control_20100410.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/11\/Oscar-Zero_Missile_Alert_Facility_Minuteman_ICBM_Launch_Control_20100410.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":40023,"url":"https:\/\/swling.com\/blog\/2019\/10\/al-williams-hackaday-article-about-moon-bounce\/","url_meta":{"origin":66204,"position":2},"title":"Al Williams&#8217; Hackaday article about Moon Bounce","author":"Thomas","date":"October 4, 2019","format":false,"excerpt":"(Source: Southgate ARC) Al Williams WD5GNR\u00a0writes on Hackaday about bouncing amateur radio signals off the moon One of the great things about ham radio is that isn\u2019t just one hobby. Some people like to chit chat, some like to work foreign countries, some prepare for emergencies, and there are several\u2026","rel":"","context":"In &quot;Ham Radio&quot;","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/10\/77_lro_full-moon-NASA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/10\/77_lro_full-moon-NASA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/10\/77_lro_full-moon-NASA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/10\/77_lro_full-moon-NASA.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":15792,"url":"https:\/\/swling.com\/blog\/2015\/11\/hackaday-recounts-an-an-unlikely-radio-story\/","url_meta":{"origin":66204,"position":3},"title":"Hackaday recounts an &#8220;An Unlikely Radio Story&#8221;","author":"Thomas","date":"November 26, 2015","format":false,"excerpt":"Many thanks to SWLing Post reader,\u00a0Michael Letterle, who shares this story from the excellent website Hackaday. The following is an excerpt from Swans, Pigs, and the CIA: An Ulikey Radio Story: Shortwave radio is boring, right? Maybe not. You never know what intrigue and excitement you might intercept. We recently\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"SWLingPost-Spy-Numbers-Station","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/09\/SWLingPost-Spy-Numbers-Station.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/09\/SWLingPost-Spy-Numbers-Station.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/09\/SWLingPost-Spy-Numbers-Station.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":33268,"url":"https:\/\/swling.com\/blog\/2018\/07\/my-radio-spectrum-archive-hope-xii-presentation-on-hackaday\/","url_meta":{"origin":66204,"position":4},"title":"My Radio Spectrum Archive HOPE XII presentation on Hackaday","author":"Thomas","date":"July 25, 2018","format":false,"excerpt":"Wow! Thank you, Hackaday: HOPE XII: TIME TRAVEL WITH SOFTWARE DEFINED RADIO by: Tom Nardi It\u2019s easy to dismiss radio as little more than background noise while we drive. At worst you might even think it\u2019s just another method for advertisers to peddle their wares. But in reality it\u2019s a\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\/timeradio_feat.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/timeradio_feat.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/timeradio_feat.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/07\/timeradio_feat.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":62933,"url":"https:\/\/swling.com\/blog\/2025\/05\/meteor-burst-communications\/","url_meta":{"origin":66204,"position":5},"title":"Meteor Burst Communications","author":"Thomas","date":"May 13, 2025","format":false,"excerpt":"Many thanks to SWLing Post contributor, Dennis Dura, for sharing the following article from Hackaday: Radio Apocalypse: Meteor Burst Communications This piece explores Meteor Burst Communications (MBC)\u2014a method of bouncing radio signals off ionized meteor trails to enable long-distance communication without relying on satellites or infrastructure. Used historically in military\u2026","rel":"","context":"In &quot;Ham Radio&quot;","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"Perseids meteor shower Photo: NASA","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/perseids_meteor_shower.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/66204","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=66204"}],"version-history":[{"count":1,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/66204\/revisions"}],"predecessor-version":[{"id":66205,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/66204\/revisions\/66205"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=66204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=66204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=66204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}