{"id":19938,"date":"2016-07-03T08:08:56","date_gmt":"2016-07-03T12:08:56","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=19938"},"modified":"2016-07-03T08:09:14","modified_gmt":"2016-07-03T12:09:14","slug":"theres-a-pattern-in-that-noise","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2016\/07\/theres-a-pattern-in-that-noise\/","title":{"rendered":"There&#8217;s a pattern in that noise!"},"content":{"rendered":"<p><a href=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Digital-Image-VOA-Radiogram.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-19939\" src=\"http:\/\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Digital-Image-VOA-Radiogram.jpg\" alt=\"Digital-Image-VOA-Radiogram\" width=\"492\" height=\"420\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Digital-Image-VOA-Radiogram.jpg 492w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/Digital-Image-VOA-Radiogram-300x256.jpg 300w\" sizes=\"auto, (max-width: 492px) 100vw, 492px\" \/><\/a><\/p>\n<p>Many thanks to <em>SWLing Post<\/em> contributor,\u00a0<a href=\"https:\/\/twitter.com\/K7al_L3afta\" target=\"_blank\">@K7al_L3afta<\/a>, who just shared the image (above) and noted, <a href=\"https:\/\/twitter.com\/K7al_L3afta\/status\/749391585259974656\" target=\"_blank\">on Twitter<\/a>:<\/p>\n<p style=\"padding-left: 30px;\"><em>&#8220;I just discovered the noise at the start of [the <a href=\"http:\/\/voaradiogram.net\/\" target=\"_blank\">VOA Radiogram<\/a> has] a purpose!&#8221;\u00a0<\/em><\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">I just discovered that the noise at the start of <a href=\"https:\/\/twitter.com\/VOARadiogram?ref_src=twsrc%5Etfw\">@VOARadiogram<\/a> have a purpose! \ud83d\ude42<a href=\"https:\/\/twitter.com\/SWLingDotCom?ref_src=twsrc%5Etfw\">@SWLingDotCom<\/a> <a href=\"https:\/\/twitter.com\/LondonShortwave?ref_src=twsrc%5Etfw\">@LondonShortwave<\/a> <a href=\"https:\/\/t.co\/cSOAMCfDTv\">pic.twitter.com\/cSOAMCfDTv<\/a><\/p>\n<p>&mdash; ? ????? ????????? (@K7al_L3afta) <a href=\"https:\/\/twitter.com\/K7al_L3afta\/status\/749391585259974656?ref_src=twsrc%5Etfw\">July 2, 2016<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>That&#8217;s a brilliant discovery!<\/p>\n<p><a href=\"http:\/\/voaradiogram.net\/\" target=\"_blank\">Click here to learn about the VOA Radiogram<\/a>.<\/p>\n<p><a href=\"https:\/\/twitter.com\/K7al_L3afta\" target=\"_blank\">Click here to follow\u00a0@K7al_L3afta\u00a0on Twitter<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor,\u00a0@K7al_L3afta, who just shared the image (above) and noted, on Twitter: &#8220;I just discovered the noise at the start of [the VOA Radiogram has] a purpose!&#8221;\u00a0 I just discovered that the noise at the start of @VOARadiogram have a purpose! \ud83d\ude42@SWLingDotCom @LondonShortwave pic.twitter.com\/cSOAMCfDTv &mdash; ? ????? ????????? (@K7al_L3afta) July 2, [&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":[1114,3,43,1167],"tags":[3553,4114,34,10,1718,182],"class_list":["post-19938","post","type-post","status-publish","format-standard","hentry","category-digital-modes","category-news","category-shortwave-radio","category-whats-on-shortwave","tag-k7al_l3afta","tag-digital-modes","tag-shortwave","tag-voa","tag-voa-radiogram","tag-voice-of-america"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-5bA","jetpack-related-posts":[{"id":6691,"url":"https:\/\/swling.com\/blog\/2013\/06\/voa-radiogram-this-weekend-mixed-bad-noise-with-good-noise\/","url_meta":{"origin":19938,"position":0},"title":"VOA Radiogram this weekend mixes bad noise with good noise","author":"Thomas","date":"June 15, 2013","format":false,"excerpt":"(Source: VOA Radiogram) During the past weekend, we experimented with mixing music with MFSK text modes. Reducing the MFSK modes by 9 dB was not a problem if the signal level was good, but the MFSK text did break up for some listeners if reception conditions were marginal. This weekend,\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9121,"url":"https:\/\/swling.com\/blog\/2014\/03\/voa-radiogram-battle-of-the-100-wpm-modes-this-weekend\/","url_meta":{"origin":19938,"position":1},"title":"VOA Radiogram: Battle of the 100 wpm modes, this weekend!","author":"Thomas","date":"March 28, 2014","format":false,"excerpt":"If you like the\u00a0VOA Radiogram, don't miss this weekend (March 29-30)--a one year mile marker for the VOA Radiogram service on shortwave radio. I've copied details of the broadcast below, but please bookmark or subscribe to the\u00a0VOA Radiogram\u00a0website to see the results of the 100 wpm battle and details of\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5991,"url":"https:\/\/swling.com\/blog\/2013\/03\/voa-radiogram-march-2324-broadcast\/","url_meta":{"origin":19938,"position":2},"title":"VOA Radiogram: March 23\/24 broadcast","author":"Thomas","date":"March 21, 2013","format":false,"excerpt":"(Source: VOA Radiogram) VOA Radiogram for March 23\/24 will be similar to the past weekend\u2019s program in that it features the PSK modes. Much of Kim\u2019s script will be the same. In this weekend\u2019s broadcast, however, only one mode at a time will be transmitted. This should improve the signal-to-noise\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5903,"url":"https:\/\/swling.com\/blog\/2013\/03\/voa-radiogram-soft-launch-this-weekend\/","url_meta":{"origin":19938,"position":3},"title":"VOA Radiogram &#8220;soft launch&#8221; this weekend","author":"Thomas","date":"March 15, 2013","format":false,"excerpt":"Kudos to VOA research analyst Dr. Kim Andrew Elliott for his remarkable innovation: \u00a0VOA Radiograms (i.e., digital text messages sent over shortwave broadcast radio), and for promoting this concept through the Voice of America. His persistance, with support from forward-thinking shortwave broadcasters like WBCQ, WRMI and The Mighty KBC, who\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15834,"url":"https:\/\/swling.com\/blog\/2015\/11\/voa-radiogram-128-on-a-cheap-tesco-shortwave-radio\/","url_meta":{"origin":19938,"position":4},"title":"VOA Radiogram 128 on a cheap Tesco shortwave radio","author":"Thomas","date":"November 26, 2015","format":false,"excerpt":"SWLing Post reader, Christopher, lives\u00a0on the north coast of Labrador, Canada. He recently contacted me regarding the purchase of a new receiver--he's currently stuck with a very inexpensive analog portable he purchased at the UK grocery store, Tesco: the Tesco RAD-108. While the RAD-108 has poor sensitivity and selectivity, it's\u2026","rel":"","context":"In &quot;Digital Modes&quot;","block_context":{"text":"Digital Modes","link":"https:\/\/swling.com\/blog\/category\/digital-modes\/"},"img":{"alt_text":"VOA-Radiogram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/VOA-Radiogram.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/VOA-Radiogram.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/VOA-Radiogram.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/VOA-Radiogram.jpg?resize=700%2C400 2x"},"classes":[]},{"id":10174,"url":"https:\/\/swling.com\/blog\/2014\/07\/voa-radiogram-this-weekend-july-56\/","url_meta":{"origin":19938,"position":5},"title":"VOA Radiogram this weekend, July 5\/6","author":"Thomas","date":"July 4, 2014","format":false,"excerpt":"(Source: VOA Radiogram) VOA Radiogram this weekend will include news about reductions to the shortwave transmissions of VOA and other stations of US international broadcasting. These cuts were effective on 30 June. Fortunately, VOA Radiogram remains on shortwave, at least for now. Here is the lineup for VOA Radiogram, program\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"VOARadioGram","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/03\/VOARadioGram.png?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/19938","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=19938"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/19938\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=19938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=19938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=19938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}