{"id":18316,"date":"2023-08-03T08:49:27","date_gmt":"2023-08-03T06:49:27","guid":{"rendered":"http:\/\/www.on4cn.be\/blog_radio\/?p=18316"},"modified":"2023-08-03T08:49:27","modified_gmt":"2023-08-03T06:49:27","slug":"arret-reussi-des-transmissions-radar-superdarn","status":"publish","type":"post","link":"http:\/\/www.on4cn.be\/blog_radio\/2023\/08\/03\/arret-reussi-des-transmissions-radar-superdarn\/","title":{"rendered":"Arr\u00eat r\u00e9ussi des transmissions radar SuperDARN"},"content":{"rendered":"<article class=\"article\">\n<center><strong><span style=\"color: #ff0000;\">Arr\u00eat r\u00e9ussi des transmissions radar SuperDARN dans la bande 20 m<\/span><\/strong><\/center><\/p>\n<p><a href=\"https:\/\/www.darc.de\/fileadmin\/filemounts\/_processed_\/e\/0\/csm_superdarn_1075px_6eef805f48.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.darc.de\/fileadmin\/filemounts\/_processed_\/e\/0\/csm_superdarn_1075px_6eef805f48.png\" alt=\"\" width=\"330\" height=\"160\"><\/a>&nbsp;&nbsp;<br \/>\nLe 13 avril 2023 \u00e0 1119 UTC, Pekka, OH2BLU, coordinateur de la surveillance finlandaise des intrusions (alias Bandwacht) a observ\u00e9 les transmissions d&rsquo;un radar SuperDARN (Super Dual Auroral Radar Network) dans la bande des 20\u00a0m \u00e0 14\u00a0200\u00a0kHz\u00a0: de courtes rafales avec une bande passante approximative de 4,5 kHz. Dans les jours suivants, d&rsquo;autres gardes de bande de la r\u00e9gion 1 de l&rsquo;IARU ont \u00e9galement confirm\u00e9 les signaux correspondants. Les \u00e9missions ont \u00e9galement \u00e9t\u00e9 observ\u00e9es sur d&rsquo;autres fr\u00e9quences dans la bande des 20 m en mai 2023, indiquant des sauts de fr\u00e9quence, une caract\u00e9ristique de ce radar. <\/p>\n<p>Plusieurs membres du syst\u00e8me de surveillance IARU de la r\u00e9gion 1 ont ensuite collabor\u00e9 activement \u00e0 l&rsquo;identification de ces transmissions et ont fourni des captures d&rsquo;\u00e9cran, des enregistrements audio, des enregistrements IQ et des r\u00e9sultats de localisation effectu\u00e9s \u00e0 l&rsquo;aide de TDoA sur le r\u00e9seau KiwiSDR.<\/p>\n<p> Le coordinateur de l&rsquo;IARUMS R1, Gaspar, EA6AMM, a entre-temps contact\u00e9 un repr\u00e9sentant du r\u00e9seau SuperDARN, qui est \u00e9galement un radioamateur nord-am\u00e9ricain agr\u00e9\u00e9, pour l&rsquo;informer des interf\u00e9rences g\u00e9n\u00e9r\u00e9es par le radar dans la bande 20 m et de mettre \u00e0 sa disposition toutes les donn\u00e9es collect\u00e9es. Une collaboration intensive s&rsquo;en est suivie pour identifier les signaux et les recouper avec toutes les transmissions de toutes les stations radar du r\u00e9seau SuperDARN dans le monde.<\/p>\n<p> En juin 2023, il a \u00e9t\u00e9 confirm\u00e9 que les transmissions provenaient en fait d&rsquo;un radar r\u00e9cemment activ\u00e9 dans le r\u00e9seau est n\u00e9, qui \u00e9tait dans une phase de test. Le repr\u00e9sentant du r\u00e9seau SuperDARN a transmis les excuses de toute la communaut\u00e9 SuperDARN pour les \u00e9missions perturbatrices et il a inform\u00e9 ses coll\u00e8gues des fr\u00e9quences d&rsquo;angle de la bande radioamateur de 20 m sp\u00e9cifi\u00e9es dans le R\u00e8glement des radiocommunications de l&rsquo;UIT afin que de telles \u00e9missions ne soient plus transmises dans ce chute de la gamme de fr\u00e9quences.<\/p>\n<p> Le syst\u00e8me de surveillance de l&rsquo;IARU R\u00e9gion 1 remercie le repr\u00e9sentant du r\u00e9seau SuperDARN pour sa coop\u00e9ration et son aide dans la r\u00e9solution de ce cas.<\/p>\n<p><em>Fig\u00a0: rafales radar SuperDARN dans le 20 &#8211; bande m \u00e0 partir de mai 2023 (Cr\u00e9dit : EA6AMM\/IARUMS R1)<\/p>\n<p>Info de la Source  <a href=\"https:\/\/www.darc.de\/home\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b><span style=\"color: #ff0000;\"> * ICI<\/span><\/b><\/a><\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Arr\u00eat r\u00e9ussi des transmissions radar SuperDARN dans la bande 20 m &nbsp;&nbsp; Le 13 avril 2023 \u00e0 1119 UTC, Pekka, OH2BLU, coordinateur de la surveillance finlandaise des intrusions (alias Bandwacht) a observ\u00e9 les transmissions d&rsquo;un radar SuperDARN (Super Dual Auroral Radar Network) dans la bande des 20\u00a0m \u00e0 14\u00a0200\u00a0kHz\u00a0: de courtes rafales avec une bande &hellip; <a href=\"http:\/\/www.on4cn.be\/blog_radio\/2023\/08\/03\/arret-reussi-des-transmissions-radar-superdarn\/\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de &laquo;&nbsp;Arr\u00eat r\u00e9ussi des transmissions radar SuperDARN&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-18316","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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