{"id":41263,"date":"2019-12-21T07:45:55","date_gmt":"2019-12-21T11:45:55","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=41263"},"modified":"2019-12-21T07:45:55","modified_gmt":"2019-12-21T11:45:55","slug":"carlos-seeks-help-identifying-signals","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2019\/12\/carlos-seeks-help-identifying-signals\/","title":{"rendered":"Carlos seeks help identifying signals"},"content":{"rendered":"<p><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-9503\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg\" alt=\"\" width=\"625\" height=\"117\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-1024x192.jpg 1024w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-300x56.jpg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial-100x18.jpg 100w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2014\/05\/SX-99-Dial.jpg 1544w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><\/p>\n<p>Many thanks to <em>SWLing Post<\/em> contributor, Carlos Latuff, who writes:<\/p>\n<blockquote><p>Attached are two different recordings.<br \/>\nBoth made in South Brazil.<\/p>\n<p>&#8211; Florian\u00f3polis, 26\/11\/2019, 19h13 (Brasilia time) 12015 kHz<\/p><\/blockquote>\n<audio class=\"wp-audio-shortcode\" id=\"audio-41263-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/wav\" src=\"https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Florianopolis.wav?_=1\" \/><a href=\"https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Florianopolis.wav\">https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Florianopolis.wav<\/a><\/audio>\n<blockquote><p>&#8211; Porto Alegre, 12\/12\/2019, 20h11 (Brasilia time) 7455 kHz<\/p><\/blockquote>\n<audio class=\"wp-audio-shortcode\" id=\"audio-41263-2\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/wav\" src=\"https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Porto%20Alegre.wav?_=2\" \/><a href=\"https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Porto%20Alegre.wav\">https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Porto%20Alegre.wav<\/a><\/audio>\n<blockquote><p>Searching on the Web I found these two frequencies related to US Navy NATO RTTY station STANAG 4481:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.sigidwiki.com\/wiki\/STANAG_4481\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.sigidwiki.com\/wiki\/STANAG_4481<\/a><\/li>\n<li><a href=\"http:\/\/mt-milcom.blogspot.com\/2018\/12\/us-navy-stanag-4481-encrypted-fsk.html?m=1\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/mt-milcom.blogspot.com\/2018\/12\/us-navy-stanag-4481-encrypted-fsk.html?m=1<\/a><\/li>\n<\/ul>\n<p>Are you able to confirm this?<\/p><\/blockquote>\n<p>Thanks for your inquiry, Carlos! Unfortunately, I cannot confirm this. If your radio had been in SSB mode, it would have made the RTTY pop out and we could have perhaps confirmed at least the RTTY mode with FLDIGI. I&#8217;m hoping a savvy <em>SWLing Post<\/em> reader can help you ID these transmissions. Please comment!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor, Carlos Latuff, who writes: Attached are two different recordings. Both made in South Brazil. &#8211; Florian\u00f3polis, 26\/11\/2019, 19h13 (Brasilia time) 12015 kHz https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Florianopolis.wav &#8211; Porto Alegre, 12\/12\/2019, 20h11 (Brasilia time) 7455 kHz https:\/\/archive.org\/download\/audioflorianopolis\/Audio%20Porto%20Alegre.wav Searching on the Web I found these two frequencies related to US Navy NATO RTTY station [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","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],"tags":[8043,1075,34],"class_list":["post-41263","post","type-post","status-publish","format-standard","hentry","category-news","tag-carlos-latuff","tag-rtty","tag-shortwave"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-aJx","jetpack-related-posts":[{"id":50171,"url":"https:\/\/swling.com\/blog\/2021\/09\/help-carlos-id-this-mystery-digital-signal\/","url_meta":{"origin":41263,"position":0},"title":"Help Carlos ID this mystery digital signal","author":"Thomas","date":"September 8, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Carlos Latuff, who shares the following: I bought a small analog radio and I've been listening with it. On September 4, around 17h48 UTC, I heard a strange signal on the band of 13 kHz, since it's not a digital dial, I don't know\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\/2021\/09\/Carlos-Latuff-Mystery-Signal-Analog-Radio-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Carlos-Latuff-Mystery-Signal-Analog-Radio-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Carlos-Latuff-Mystery-Signal-Analog-Radio-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Carlos-Latuff-Mystery-Signal-Analog-Radio-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Carlos-Latuff-Mystery-Signal-Analog-Radio-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":60951,"url":"https:\/\/swling.com\/blog\/2024\/10\/carlos-illustrated-radio-listening-report-and-recording-of-radio-nacional-de-brasilia-october-23-2024\/","url_meta":{"origin":41263,"position":1},"title":"Carlos\u2019 Illustrated Radio Listening Report and Recording of R\u00e1dio Nacional de Bras\u00edlia (October 23, 2024)","author":"Thomas","date":"October 25, 2024","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor and noted political cartoonist,\u00a0Carlos Latuff, who shares\u00a0illustrated radio listening report of a recent R\u00e1dio Nacional de Bras\u00edlia broadcast. Carlos notes: Excerpt from Radio Nacional (Brazil, AM 1130 kHz) news bulletin, in Portuguese, about President Lula's videoconference participation in the BRICS Summit, criticizing the war in Ukraine\u2026","rel":"","context":"In &quot;Art&quot;","block_context":{"text":"Art","link":"https:\/\/swling.com\/blog\/category\/art-2\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/10\/Latuff-Radio-Nacional-de-Brasilia-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/10\/Latuff-Radio-Nacional-de-Brasilia-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/10\/Latuff-Radio-Nacional-de-Brasilia-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/10\/Latuff-Radio-Nacional-de-Brasilia-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/10\/Latuff-Radio-Nacional-de-Brasilia-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":65337,"url":"https:\/\/swling.com\/blog\/2026\/02\/carlos-illustrated-radio-listening-report-and-recording-of-radio-nacional-february-13-2026\/","url_meta":{"origin":41263,"position":2},"title":"Carlos\u2019 Illustrated Radio Listening Report and Recording of R\u00e1dio Nacional (February 13, 2026)","author":"Thomas","date":"February 14, 2026","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor and noted political cartoonist,\u00a0Carlos Latuff, who shares the following\u00a0illustrated radio listening report of a recent R\u00e1dio Nacional broadcast. Carlos notes: World Radio Day, R\u00e1dio Nacional, 11780 kHz https:\/\/youtu.be\/PHqsrMVgKIs?si=PRyfVWlWr8V9VKME Click here to view on YouTube.","rel":"","context":"In &quot;Art&quot;","block_context":{"text":"Art","link":"https:\/\/swling.com\/blog\/category\/art-2\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/02\/Radio-Nacional-Feb-13-2026-1-scaled.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/02\/Radio-Nacional-Feb-13-2026-1-scaled.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/02\/Radio-Nacional-Feb-13-2026-1-scaled.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/02\/Radio-Nacional-Feb-13-2026-1-scaled.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/02\/Radio-Nacional-Feb-13-2026-1-scaled.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2026\/02\/Radio-Nacional-Feb-13-2026-1-scaled.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":64017,"url":"https:\/\/swling.com\/blog\/2025\/09\/carlos-illustrated-radio-listening-report-and-recording-of-radio-nacional-september-23-2025\/","url_meta":{"origin":41263,"position":3},"title":"Carlos\u2019 Illustrated Radio Listening Report and Recording of R\u00e1dio Nacional (September 23, 2025)","author":"Thomas","date":"September 23, 2025","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor and noted political cartoonist,\u00a0Carlos Latuff, who shares the following\u00a0illustrated radio listening report of a recent R\u00e1dio Nacional broadcast. Carlos notes: Excerpts from President Lula's speech at the UN, R\u00e1dio Nacional, 1130 kHz AM https:\/\/youtube.com\/shorts\/xWfjo1_Ern4?si=jhYqKNaKNMeWfk2a Click here to view on YouTube.","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\/09\/Latuff-Radio-Nacional-1-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Latuff-Radio-Nacional-1-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Latuff-Radio-Nacional-1-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Latuff-Radio-Nacional-1-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Latuff-Radio-Nacional-1-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":63557,"url":"https:\/\/swling.com\/blog\/2025\/08\/carlos-illustrated-radio-listening-report-and-recording-of-radio-nacional-august-4-2025\/","url_meta":{"origin":41263,"position":4},"title":"Carlos\u2019 Illustrated Radio Listening Report and Recording of Radio Nacional (August 4, 2025)","author":"Thomas","date":"August 5, 2025","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor and noted political cartoonist,\u00a0Carlos Latuff, who shares the following\u00a0illustrated radio listening report of a recent Radio Nacional broadcast. Carlos notes: Brazil's Supreme Court orders house arrest of former president Bolsonaro, R\u00e1dio Nacional, 6180 kHz https:\/\/youtube.com\/shorts\/4-fNXXLDFQw?si=JNzMgJYMqF_QEGWh Click here to view on YouTube.","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\/08\/Latuff-Radio-Nacional-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/08\/Latuff-Radio-Nacional-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/08\/Latuff-Radio-Nacional-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/08\/Latuff-Radio-Nacional-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/08\/Latuff-Radio-Nacional-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":63928,"url":"https:\/\/swling.com\/blog\/2025\/09\/carlos-illustrated-radio-listening-report-and-recording-of-radio-nacional-september-11-2025\/","url_meta":{"origin":41263,"position":5},"title":"Carlos\u2019 Illustrated Radio Listening Report and Recording of R\u00e1dio Nacional (September 11, 2025)","author":"Thomas","date":"September 13, 2025","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor and noted political cartoonist,\u00a0Carlos Latuff, who shares the following\u00a0illustrated radio listening report of a recent R\u00e1dio Nacional broadcast. Carlos notes: Former Brazilian president Bolsonaro sentenced to 27 years in prison for coup plot, R\u00e1dio Nacional, 11780 kHz https:\/\/youtube.com\/shorts\/e8RZTKRvc1E?si=_nyNGj_qJu5IQiIE Click here to view on YouTube.","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\/09\/Radio-Nacional-Latuff-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Radio-Nacional-Latuff-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Radio-Nacional-Latuff-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Radio-Nacional-Latuff-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2025\/09\/Radio-Nacional-Latuff-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\/41263","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=41263"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/41263\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=41263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=41263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=41263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}