{"id":66494,"date":"2026-07-04T05:22:50","date_gmt":"2026-07-04T09:22:50","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=66494"},"modified":"2026-07-04T05:22:50","modified_gmt":"2026-07-04T09:22:50","slug":"hackaday-spotlights-a-clever-diy-si5351-radio-project","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2026\/07\/hackaday-spotlights-a-clever-diy-si5351-radio-project\/","title":{"rendered":"Hackaday Spotlights a Clever DIY Si5351 Radio Project"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-66495\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1.jpeg\" alt=\"\" width=\"1200\" height=\"672\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1.jpeg 1200w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1-300x168.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1-1024x573.jpeg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1-768x430.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2026\/07\/siradio-1-624x349.jpeg 624w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a>Many thanks to <em>SWLing Post<\/em> contributor Dennis Dura who notes that\u00a0Hackaday recently featured a clever DIY receiver project based on the Si5351 and ESP32 that covers shortwave, mediumwave, and more. It has a nice retro look, plenty of modern features, and even includes an SDR mode for use with a computer.<\/p>\n<p>If you enjoy homebrew radio projects, <a href=\"https:\/\/hackaday.com\/2026\/07\/02\/diy-si5351-radio-tunes-in-sw-mw-and-more\/\" target=\"_blank\" rel=\"noopener\">this is well worth a look<\/a>:<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"QQBB0E9NOh\"><p><a href=\"https:\/\/hackaday.com\/2026\/07\/02\/diy-si5351-radio-tunes-in-sw-mw-and-more\/\">DIY SI5351 Radio Tunes In SW, MW, And More<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cDIY SI5351 Radio Tunes In SW, MW, And More\u201d \u2014 Hackaday\" src=\"https:\/\/hackaday.com\/2026\/07\/02\/diy-si5351-radio-tunes-in-sw-mw-and-more\/embed\/#?secret=JqaYWkdngu#?secret=QQBB0E9NOh\" data-secret=\"QQBB0E9NOh\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor Dennis Dura who notes that\u00a0Hackaday recently featured a clever DIY receiver project based on the Si5351 and ESP32 that covers shortwave, mediumwave, and more. It has a nice retro look, plenty of modern features, and even includes an SDR mode for use with a computer. If you enjoy homebrew [&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_feature_clip_id":0,"_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],"tags":[5875,11147,3354,8295],"class_list":["post-66494","post","type-post","status-publish","format-standard","hentry","category-news","category-shortwave-radio","tag-dennis-dura","tag-esp32","tag-hackaday","tag-si5351"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-hiu","jetpack-related-posts":[{"id":41839,"url":"https:\/\/swling.com\/blog\/2020\/02\/a-compact-homebrew-si5351-based-sdr\/","url_meta":{"origin":66494,"position":0},"title":"A compact homebrew Si5351-based SDR","author":"Thomas","date":"February 3, 2020","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor,\u00a0Paul Evans, who writes: I see this receiver as a remarkable break through. Using audio processor to emulate modes from IQ is very, very clever. This is perhaps the article of the year!: (Source: Circuit Salad) [...]This is a revised version of my FV-1 based SDR. I\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\/2020\/02\/Mini-SDR.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Mini-SDR.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Mini-SDR.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/Mini-SDR.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":23169,"url":"https:\/\/swling.com\/blog\/2017\/01\/bitx40-goes-digital\/","url_meta":{"origin":66494,"position":1},"title":"BITX40 Goes Digital","author":"Thomas","date":"January 5, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor, Pete (WB9FLW), who notes that\u00a0Ashhar Farhan (VU2ESE) has upgraded the BITX40 Transceiver with a Arduino Nano\/Si5351 VFO: http:\/\/www.hfsigs.com\/ The BITX40 is an affordable, fully assembled QRP transceiver \u00a0we've mentioned on the SWLing Post before--click here to read more. Thanks for the tip, Pete!","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\/2016\/10\/bitx40v3_main-1.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/bitx40v3_main-1.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/bitx40v3_main-1.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/10\/bitx40v3_main-1.jpg?resize=700%2C400 2x"},"classes":[]},{"id":63912,"url":"https:\/\/swling.com\/blog\/2025\/09\/noise-reduction-ideas-via-hackaday-electronics-unmessed\/","url_meta":{"origin":66494,"position":2},"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":66494,"position":3},"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":44522,"url":"https:\/\/swling.com\/blog\/2020\/07\/radio-globe-a-handy-way-to-explore-the-world-of-internet-radio\/","url_meta":{"origin":66494,"position":4},"title":"Radio Globe: A handy way to explore the world of Internet radio","author":"Thomas","date":"July 28, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Dennis Dura, who shares a link to this fascinating project on the excellent Hackday site: [...]RadioGlobe lets the user tune in over 2000 stations from around the world by spinning a real globe. It works by using two absolute rotary encoders that each have\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\/2020\/07\/Radio-Globe-e1595935532147.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/07\/Radio-Globe-e1595935532147.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/07\/Radio-Globe-e1595935532147.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/07\/Radio-Globe-e1595935532147.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":62933,"url":"https:\/\/swling.com\/blog\/2025\/05\/meteor-burst-communications\/","url_meta":{"origin":66494,"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\/66494","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=66494"}],"version-history":[{"count":1,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/66494\/revisions"}],"predecessor-version":[{"id":66496,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/66494\/revisions\/66496"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=66494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=66494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=66494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}