{"id":18345,"date":"2023-08-06T07:48:53","date_gmt":"2023-08-06T05:48:53","guid":{"rendered":"http:\/\/www.on4cn.be\/blog_radio\/?p=18345"},"modified":"2023-08-06T07:48:53","modified_gmt":"2023-08-06T05:48:53","slug":"transmissions-radar-superdarn-en-20m","status":"publish","type":"post","link":"https:\/\/www.on4cn.be\/blog_radio\/2023\/08\/06\/transmissions-radar-superdarn-en-20m\/","title":{"rendered":"Transmissions radar SuperDARN en 20m"},"content":{"rendered":"<article class=\"article\">\n<center><strong><span style=\"color: #ff0000;\">Information Transmissions radar SuperDARN en 20m<\/span><\/strong><\/center><\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/8\/82\/SuperDARN.jpg\" width=\"600\" height=\"400\" \/><\/p>\n<p><b>05-08-2023<\/b><\/p>\n<p style=\"text-align: center;\"><b>( IARUMS R1 \/ 2 AO\u00dbT 2023 )<\/b><br \/>\nLe 13 avril 2023, Pekka, OH2BLU, coordinateur du syst\u00e8me de surveillance IARU du SRAL (Finlande), signale \u00e0 11h19 UTC la r\u00e9ception des transmissions \u00e9mises par un radar SuperDARN (SuperDARN : Super Dual Auroral Radar Network) dans le 20 m\u00e8tres bande, plus pr\u00e9cis\u00e9ment en 14200 kHz CF : rafales courtes qui utilisent une bande passante d&rsquo;environ 4,5 kHz. Dans les jours suivants, plusieurs b\u00e9n\u00e9voles de l&rsquo;IARUMS R\u00e9gion 1 ont \u00e9galement signal\u00e9 de telles transmissions.<\/p>\n<p>Ces transmissions pourraient \u00e9galement \u00eatre observ\u00e9es en mai 2023 sur d&rsquo;autres fr\u00e9quences dans la bande des 20 m\u00e8tres, en raison de la m\u00e9thode de saut de fr\u00e9quence que ce radar utilise g\u00e9n\u00e9ralement.<\/p>\n<p>Plusieurs membres de l&rsquo;\u00e9quipe IARUMS R1 ont travaill\u00e9 activement \u00e0 l&rsquo;identification de ces transmissions, en fournissant des captures d&rsquo;\u00e9cran, des enregistrements audio, des enregistrements IQ et des triangulations effectu\u00e9es par TDoA sur le r\u00e9seau KiwiSDR.<\/p>\n<p>Le coordinateur IARUMS R1, Gaspar, EA6AMM, a contact\u00e9 un repr\u00e9sentant du r\u00e9seau SuperDARN, \u00e9galement radioamateur titulaire d&rsquo;une licence nord-am\u00e9ricaine, pour l&rsquo;informer de la r\u00e9ception des transmissions dans la bande des 20 m\u00e8tres et lui fournir tous les donn\u00e9es collect\u00e9es sur ces transmissions.<\/p>\n<p>Le repr\u00e9sentant du r\u00e9seau SuperDARN a activement coop\u00e9r\u00e9 avec le syst\u00e8me de surveillance de la r\u00e9gion 1 de l&rsquo;IARU pour identifier les signaux, menant une enqu\u00eate approfondie sur toutes les transmissions envoy\u00e9es par tous les radars du r\u00e9seau SuperDARN dans le monde.<\/p>\n<p>En juin 2023, apr\u00e8s son enqu\u00eate, il a confirm\u00e9 que les transmissions provenaient bien d&rsquo;un radar du r\u00e9seau r\u00e9cemment activ\u00e9 qui \u00e9tait en phase de test. Tambi\u00e9n transmiti\u00f3 las disculpas de toda la comunidad SuperDARN por esas transmisiones y comunic\u00f3 a sus compa\u00f1eros el ITU RR en las frecuencias de la banda de radioaficionados de 20 m, que le proporcionamos, para que estas transmisiones no se vuelvan a enviar en esta frecuencia gama en le futur.<\/p>\n<p>Le syst\u00e8me de surveillance de la r\u00e9gion 1 de l&rsquo;IARU tient \u00e0 remercier ce repr\u00e9sentant du r\u00e9seau SuperDARN pour sa coop\u00e9ration et son assistance, et appr\u00e9cie la r\u00e9solution de ce cas.<\/p>\n<p style=\"text-align: justify;\">73, &#8211; Claude ON4CN<\/p>\n<p style=\"text-align: justify;\">Info de la Source de EA1CS <a href=\"http:\/\/ea1cs.blogspot.com\/\" target=\"_blank\" rel=\"noopener\"><b><span style=\"color: #0000ff;\"> ICI<\/span><\/b><\/a><\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Information Transmissions radar SuperDARN en 20m 05-08-2023 ( IARUMS R1 \/ 2 AO\u00dbT 2023 ) Le 13 avril 2023, Pekka, OH2BLU, coordinateur du syst\u00e8me de surveillance IARU du SRAL (Finlande), signale \u00e0 11h19 UTC la r\u00e9ception des transmissions \u00e9mises par un radar SuperDARN (SuperDARN : Super Dual Auroral Radar Network) dans le 20 m\u00e8tres bande, &hellip; <a href=\"https:\/\/www.on4cn.be\/blog_radio\/2023\/08\/06\/transmissions-radar-superdarn-en-20m\/\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de &laquo;&nbsp;Transmissions radar SuperDARN en 20m&nbsp;&raquo;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,24,25],"tags":[],"class_list":["post-18345","post","type-post","status-publish","format-standard","hentry","category-info","category-trafic-radio","category-trafic-radioamatuer"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - 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