{"id":58640,"date":"2024-01-07T03:00:10","date_gmt":"2024-01-07T07:00:10","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=58640"},"modified":"2024-01-07T07:21:05","modified_gmt":"2024-01-07T11:21:05","slug":"d-i-c-a-giuseppes-latest-homebrew-portable-antenna","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2024\/01\/d-i-c-a-giuseppes-latest-homebrew-portable-antenna\/","title":{"rendered":"D.I.C.A.: Giuseppe&#8217;s latest homebrew portable antenna"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-58641\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1.jpeg\" alt=\"\" width=\"988\" height=\"599\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1.jpeg 988w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1-300x182.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1-768x466.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1-624x378.jpeg 624w\" sizes=\"auto, (max-width: 988px) 100vw, 988px\" \/><\/a><\/p>\n<p><strong>Many thanks to <em>SWLing Post<\/em> contributor, <a href=\"https:\/\/swling.com\/blog\/tag\/giuseppe-morle-iz0gzw\/\" target=\"_blank\" rel=\"noopener\">Giuseppe Morl\u00e8<\/a>, who shares the following antenna project:<\/strong><\/p>\n<p style=\"padding-left: 40px;\">Dear Thomas and SWLing Post Friends ,<\/p>\n<p style=\"padding-left: 40px;\">I&#8217;m Giuseppe Morl\u00e8, iz0gzw, from Central Italy, Formia on the Tyrrhenian Sea&#8230;<br \/>\nSome time ago I had drawn this minimal HF antenna on paper&#8230;<\/p>\n<p style=\"padding-left: 40px;\">I took advantage of the New Year&#8217;s Eve rain to be able to build it with the usual leftover scraps&#8230;<\/p>\n<p style=\"padding-left: 40px;\">The system consists of a 35 cm tube with two separate windings of telephone cable on it, 2.5 m on each side, green and white&#8230;in the center I connected the 4 ends to X&#8230;<\/p>\n<p style=\"padding-left: 40px;\">The green lead with the white and the white with the green to the variable capacitor and the other two leads to the RG58 cable that goes to the receiver.<\/p>\n<p style=\"padding-left: 40px;\">I started the test and noticed that the agreement was possible from 7 to 21 MHz&#8230;<\/p>\n<p style=\"padding-left: 40px;\">I then placed a long ferrite inside the tube&#8230;<\/p>\n<p style=\"padding-left: 40px;\">I noticed a strengthening of the signal and consequently of the noise picked up and the chord dropped to 3.2 MHz.<\/p>\n<p style=\"padding-left: 40px;\">Tests inside my shack showed decent reception on all ranges&#8230;in the evening on the balcony on 80 m. I could perfectly listen to a QSO between Italian stations.<\/p>\n<p style=\"padding-left: 40px;\">Everything is still in the experimental phase and I think I will try this minimal system also in QRP transmission.<\/p>\n<p style=\"padding-left: 40px;\">In this first video I explain how this minimal antenna is made:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/hxQoIj3cF-8?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"padding-left: 40px;\">The second video concerns a 20 meter test by car. The antenna is placed on the dashboard of the car inside:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/sYntQ_t8t3Q?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"padding-left: 40px;\">In the third video, I explain how it works without the ferrite and with the ferrite inside the tube:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/SbKMWteCUcs?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"padding-left: 40px;\">In this video you can see the test on 40 m. outdoors on the roof of the house:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/mzGYRGf62FQ?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"padding-left: 40px;\">The tests are carried out at home in order to understand what can be achieved in an environment that is difficult to receive.<\/p>\n<p style=\"padding-left: 40px;\">I will do more outdoor tests and I think this small minimal antenna will receive better. I will keep you informed.<\/p>\n<p style=\"padding-left: 40px;\">Thank you all for your attention and I wish you all a new year full of satisfaction.<\/p>\n<p style=\"padding-left: 40px;\">&#8217;73 de Giuseppe iz0gzw.<\/p>\n<p><strong>Fascinating, Giuseppe! I love all of these brilliant little antennas you design out of your &#8220;junk&#8221; drawer! We look forward to hearing more about this antenna and any modifications you make to it!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor, Giuseppe Morl\u00e8, who shares the following antenna project: Dear Thomas and SWLing Post Friends , I&#8217;m Giuseppe Morl\u00e8, iz0gzw, from Central Italy, Formia on the Tyrrhenian Sea&#8230; Some time ago I had drawn this minimal HF antenna on paper&#8230; I took advantage of the New Year&#8217;s Eve rain to [&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":[3607,627,3,1113],"tags":[1643,5791,8498],"class_list":["post-58640","post","type-post","status-publish","format-standard","hentry","category-antennas","category-how-to","category-news","category-tutorials","tag-antennas","tag-giuseppe-morle-iz0gzw","tag-homebrew-antennas"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-ffO","jetpack-related-posts":[{"id":58660,"url":"https:\/\/swling.com\/blog\/2024\/01\/video-giuseppe-explains-wiring-construction-of-dica-homebrew-antenna\/","url_meta":{"origin":58640,"position":0},"title":"Video: Giuseppe explains wiring\/construction of DICA Homebrew Antenna","author":"Thomas","date":"January 10, 2024","format":false,"excerpt":"Many thanks to SWLing Post contributor, Giuseppe Morl\u00e8, who writes: Dear Thomas and SWLingPost Friends, I'm Giuseppe Morl\u00e8 iz0gzw, Many friends have asked for the DICA wiring diagram after my recent post and demonstration. I'm not a technician but a simple passionate listener and qrp'er... I made this video with\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\/2024\/01\/Giuseppe-Antenna-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/01\/Giuseppe-Antenna-1.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":47162,"url":"https:\/\/swling.com\/blog\/2021\/01\/giuseppes-homebrew-rotating-ferrite-antenna\/","url_meta":{"origin":58640,"position":1},"title":"Giuseppe&#8217;s homebrew rotating ferrite antenna","author":"Thomas","date":"January 5, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Giuseppe Morl\u00e8 (IZ0GZW), who writes: Dear Thomas, I'm Giuseppe Morl\u00e8 (IZ0GZW) from Formia, on the Tyrrhenian Sea, in Italy . I built this simple rotating directive ferrite antenna for medium waves and the 160 meters ham band. Inside the tube there are 2 ferrites\u2026","rel":"","context":"In &quot;Antennas&quot;","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\/2021\/01\/Double-Ferrite-Antenna-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/Double-Ferrite-Antenna-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/Double-Ferrite-Antenna-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/01\/Double-Ferrite-Antenna-1.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":48622,"url":"https:\/\/swling.com\/blog\/2021\/04\/giuseppe-is-impressed-with-the-performance-of-his-homebrew-passive-loop-antenna\/","url_meta":{"origin":58640,"position":2},"title":"Giuseppe is impressed with the performance of his homebrew passive loop antenna","author":"Thomas","date":"April 22, 2021","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor, Giuseppe Morl\u00e8 (IZ0GZW), who shares the following: Dear Thomas, I'm Giuseppe Morl\u00e8 from central Italy, the Tyrrhenian Sea, Formia. Today I tested my noise canceling loop inside the radio station by comparing it to the crossed loops. Again, like my medium wave T Ferrite, this loop\u2026","rel":"","context":"In &quot;Accessories&quot;","block_context":{"text":"Accessories","link":"https:\/\/swling.com\/blog\/category\/accessories\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/04\/Giuseppe.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/04\/Giuseppe.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/04\/Giuseppe.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/04\/Giuseppe.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/04\/Giuseppe.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/04\/Giuseppe.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":55052,"url":"https:\/\/swling.com\/blog\/2022\/12\/video-giuseppes-cassette-loop-on-the-shortwaves-with-induction\/","url_meta":{"origin":58640,"position":3},"title":"Video: Giuseppe&#8217;s &#8220;Cassette Loop&#8221; on the shortwaves with induction","author":"Thomas","date":"December 16, 2022","format":false,"excerpt":"Many thanks to SWLing Post contributor, Giuseppe Morl\u00e8 (IZ0GZW), who writes: Dear Thomas and Friends of the SWLing Post, I'm Giuseppe Morl\u00e8 from central Italy, Formia on the Tyrrhenian Sea... My Cassette Loop experiment this time shows how induction takes place on short waves after medium waves. I used a\u2026","rel":"","context":"In &quot;Antennas&quot;","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\/12\/Giuseppe-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Giuseppe-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Giuseppe-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Giuseppe-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/12\/Giuseppe-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":64826,"url":"https:\/\/swling.com\/blog\/2025\/12\/giuseppes-clever-homebrew-ferrite-antenna-for-mw-and-sw-listening\/","url_meta":{"origin":58640,"position":4},"title":"Giuseppe&#8217;s Clever Homebrew Ferrite Antenna for MW and SW Listening","author":"Thomas","date":"December 7, 2025","format":false,"excerpt":"Many thanks to SWLing Post contributor, Giuseppe Morl\u00e8, who writes: Dear Thomas, I\u2019m Giuseppe Morl\u00e8, IZ0GZW, from Formia in central Italy on the Tyrrhenian Sea. This is one of my builds from a few years ago: the T Ferrite antenna. It\u2019s a minimal antenna designed mainly for mediumwave, but it\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\/2025\/12\/Bar-antenna-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/12\/Bar-antenna-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/12\/Bar-antenna-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/12\/Bar-antenna-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/12\/Bar-antenna-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":59365,"url":"https:\/\/swling.com\/blog\/2024\/03\/dica-2-the-revenge-giuseppe-tests-his-updated-homebrew-antenna\/","url_meta":{"origin":58640,"position":5},"title":"DICA 2: &#8220;The Revenge&#8221; &#8211; Giuseppe tests his updated homebrew antenna!","author":"Thomas","date":"March 26, 2024","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor,\u00a0Giuseppe Morl\u00e8, who shares the following antenna project: Dear Thomas and Friends of the SWLing Post, I'm Giuseppe Morl\u00e8 from Formia, central Italy on the Tyrrhenian Sea. After the DICA prototype I created another one called DICA 2 The Revenge! This other minimal antenna works differently from\u2026","rel":"","context":"In &quot;Antennas&quot;","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\/03\/DICA-2-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/03\/DICA-2-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/03\/DICA-2-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/03\/DICA-2-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/03\/DICA-2-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/58640","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=58640"}],"version-history":[{"count":2,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/58640\/revisions"}],"predecessor-version":[{"id":58646,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/58640\/revisions\/58646"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=58640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=58640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=58640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}