{"id":42467,"date":"2020-03-24T12:44:12","date_gmt":"2020-03-24T16:44:12","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=42467"},"modified":"2020-03-24T12:44:12","modified_gmt":"2020-03-24T16:44:12","slug":"cprm-lisboa-another-mystery-signal-solved","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2020\/03\/cprm-lisboa-another-mystery-signal-solved\/","title":{"rendered":"CPRM Lisboa: Another mystery signal solved"},"content":{"rendered":"

\"\"<\/a>In response to our latest mystery utility signal challenge<\/a>, SWLing Post<\/em> contributor, Dean Bianco replies:<\/p>\n

This is the musical marker for CPRM Lisboa, a radiotelephone terminal that provided overseas telephone and telegraph communications in the days prior to satellites.<\/p>\n

I remembered the non-broadcast HF frequencies being loaded to bursting with many of these radio services. When not scrambled for privacy, one could hear a telephone call in progress. Instead of a musical IS such as this one, most were loop tape voice ID\u2019s in several languages (almost always including English). So naturally these musical loops made it quite difficult to know what exactly one was hearing, to say the least!<\/p><\/blockquote>\n

To verify check out the following embedded audio file made by Willi Passmann\u00a0 (via the excellent UtilityRadio.com<\/a>\u00a0website):<\/p>\nhttps:\/\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/por-220-cprm-lisboa-usb-clg-praiamm1974rainer-brannoltedmc-907-2-07.mp3<\/a><\/audio>\n

Once again, thanks to Dean Bianco for solving yet another mystery! Obviously, Dean is a Black Belt<\/em> SWL and DXer!<\/p>\n

FYI: I’ve received a number of emails from readers who really enjoy these mystery signals. Since we all seem to have more time at home these days<\/a>, I’ll plan to keep them coming!<\/p>\n

\n

Do you enjoy the SWLing Post?<\/em><\/strong><\/span><\/h1>\n

Please consider supporting us via\u00a0Patreon<\/span><\/a>\u00a0or our\u00a0Coffee<\/span>\u00a0Fund<\/span><\/a>! <\/em><\/strong><\/p>\n

Your support makes articles like this one possible. Thank you!<\/em><\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

In response to our latest mystery utility signal challenge, SWLing Post contributor, Dean Bianco replies: This is the musical marker for CPRM Lisboa, a radiotelephone terminal that provided overseas telephone and telegraph communications in the days prior to satellites. I remembered the non-broadcast HF frequencies being loaded to bursting with many of these radio services. […]<\/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":[5935,3,305,43],"tags":[8386,8351,94,5448,3627],"class_list":["post-42467","post","type-post","status-publish","format-standard","hentry","category-dx","category-news","category-nostalgia","category-shortwave-radio","tag-cprm-lisboa","tag-dean-bianco","tag-interval-signals","tag-mystery-signals","tag-utility"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-b2X","jetpack-related-posts":[{"id":42243,"url":"https:\/\/swling.com\/blog\/2020\/03\/dean-solves-second-interval-signal-mystery\/","url_meta":{"origin":42467,"position":0},"title":"Dean solves second interval signal mystery","author":"Thomas","date":"March 9, 2020","format":false,"excerpt":"In response to our second mystery interval signal challenge, SWLing Post contributor, Dean Bianco replies: Mystery solved! This is the \u201cinterval signal\u201d (more accurately, a placeholder with a musical station identifier) for the Compa\u00f1\u00eda Telef\u00f3nica Nacional de Espa\u00f1a (CTNW) from Madrid, Spain. They were a point-to-point HF radiotelephone terminal that\u2026","rel":"","context":"In "News"","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\/03\/Compania-Telefonica-Nacional-de-Espana-642x1024.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/Compania-Telefonica-Nacional-de-Espana-642x1024.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/Compania-Telefonica-Nacional-de-Espana-642x1024.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":42154,"url":"https:\/\/swling.com\/blog\/2020\/02\/mystery-solved-readers-identify-curious-interval-signal\/","url_meta":{"origin":42467,"position":1},"title":"Mystery Solved: Readers identify curious interval signal","author":"Thomas","date":"February 24, 2020","format":false,"excerpt":"Yesterday, we published a post asking SWLing Readers to help Brian (W9IND) identify an elusive interval signal (click here to read that post). We received dozens of replies--thank you so much! Many readers immediately identified the tune as some sort of utility station placeholder for Point To Point communications. Turns\u2026","rel":"","context":"In "News"","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\/02\/PTT-Habana-Cuba-VErification.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/PTT-Habana-Cuba-VErification.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/PTT-Habana-Cuba-VErification.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/02\/PTT-Habana-Cuba-VErification.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":42227,"url":"https:\/\/swling.com\/blog\/2020\/03\/lets-solve-another-interval-signal-mystery\/","url_meta":{"origin":42467,"position":2},"title":"Let’s solve another interval signal mystery!","author":"Thomas","date":"March 8, 2020","format":false,"excerpt":"Last month, we published\u00a0a post\u00a0asking\u00a0SWLing Readers to help Brian (W9IND) identify an elusive interval signal. Turns out, the interval signal belonged to the Voice Mirror of the PTT Habana, Cuba station. This month, SWLing Post contributor, David Crawford is asking for help to ID another interval signal which likely belongs\u2026","rel":"","context":"In "News"","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\/03\/Push-button-phone-cropped-e1583684071445.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/Push-button-phone-cropped-e1583684071445.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/Push-button-phone-cropped-e1583684071445.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/03\/Push-button-phone-cropped-e1583684071445.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":42461,"url":"https:\/\/swling.com\/blog\/2020\/03\/yet-another-mystery-utility-signal-to-solve\/","url_meta":{"origin":42467,"position":3},"title":"Yet another mystery utility signal to solve–!","author":"Thomas","date":"March 23, 2020","format":false,"excerpt":"Back by popular demand! On our quest to solve UNID utility signals, SWLing Post contributor David Crawford, is asking for help again to ID yet another interval signal. David writes: Here's yet another memorable utili-tune from the deep archives here, again not my recording, origin uncertain. This one has a\u2026","rel":"","context":"In "News"","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\/2017\/06\/Pink-Vintage-Dial.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/06\/Pink-Vintage-Dial.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/06\/Pink-Vintage-Dial.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/06\/Pink-Vintage-Dial.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":58339,"url":"https:\/\/swling.com\/blog\/2023\/12\/patrizio-seeks-information-about-mystery-signals-hes-discovering-across-the-hf-bands\/","url_meta":{"origin":42467,"position":4},"title":"Patrizio seeks information about mystery signals he’s discovering across the HF bands","author":"Thomas","date":"December 4, 2023","format":false,"excerpt":"Many thanks to SWLing Post contributor, Patrizio Cardelli, who has discovered some interesting signals on the HF bands and is seeking information about them. A little background: Patrizio asked me about these signals a few weeks ago and based on a quick glance at the spectrum and waterfall images I\u2026","rel":"","context":"In "Digital Modes"","block_context":{"text":"Digital Modes","link":"https:\/\/swling.com\/blog\/category\/digital-modes\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/12\/Spectrum-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/12\/Spectrum-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/12\/Spectrum-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/12\/Spectrum-1.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":42146,"url":"https:\/\/swling.com\/blog\/2020\/02\/help-brian-identify-this-1970s-era-interval-signal\/","url_meta":{"origin":42467,"position":5},"title":"Help Brian identify this 1970s era interval signal","author":"Thomas","date":"February 23, 2020","format":false,"excerpt":"[Mystery solved! Click here to read the update.] Many thanks to SWLing Post contributor, Brian (W9IND), who writes: I want to thank you for stirring a memory that I never thought I\u2019d relive \u2013 even though it still doesn\u2019t solve the mystery of what the heck I was listening to\u2026","rel":"","context":"In "News"","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\/2015\/09\/SX-99-Dial-Nar.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/09\/SX-99-Dial-Nar.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/42467","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=42467"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/42467\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=42467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=42467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=42467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}