{"id":242079,"date":"2026-09-07T03:51:08","date_gmt":"2026-09-07T03:51:08","guid":{"rendered":"https:\/\/www.europesays.com\/be-fr\/242079\/"},"modified":"2026-09-07T03:51:08","modified_gmt":"2026-09-07T03:51:08","slug":"orcsdr-pourquoi-les-gens-nont-plus-besoin-dun-sdr-a-650","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/be-fr\/242079\/","title":{"rendered":"OrcSDR : Pourquoi les gens n&rsquo;ont plus besoin d&rsquo;un SDR \u00e0 650 $"},"content":{"rendered":"<p class=\"bodytext\">Le <a href=\"https:\/\/github.com\/hardcoreerik\/OrcSDR\" class=\"external-link-new-window\" data-htmlarea-external=\"1\" rtekeep=\"1\" rel=\"nofollow noopener\" target=\"_blank\">projet OrcSDR<\/a> s&rsquo;articule autour de la M5Stack Tab5, une tablette portable aliment\u00e9e par batterie et \u00e9quip\u00e9e d&rsquo;un processeur RISC-V ESP32-P4 double c\u0153ur. En branchant un RTL-SDR directement sur le port USB h\u00f4te de la Tab5, l\u2019ESP32 se charge des t\u00e2ches les plus lourdes : il traite le flux radio num\u00e9rique brut, d\u00e9module le signal audio et affiche en temps r\u00e9el, de mani\u00e8re tactile, un spectre et un graphique en cascade sur un \u00e9cran couleur de 5 pouces, sans avoir besoin d\u2019un PC.&#13;<\/p>\n<p class=\"bodytext\">Pour les d\u00e9ploiements sur le terrain, OrcSDR comble l\u2019\u00e9cart de prix consid\u00e9rable entre les cl\u00e9s informatiques bon march\u00e9 et les scanners num\u00e9riques commerciaux d\u00e9di\u00e9s \u00e0 650 dollars, tels que l\u2019Uniden SDS100. Les techniciens de terrain, les b\u00e9n\u00e9voles des \u00e9quipes de recherche et de sauvetage et les radioamateurs disposent ainsi d\u2019un scanner tout-en-un pour effectuer rapidement des \u00e9tudes de site et bien plus encore. Par exemple, cet appareil portable peut suivre les transpondeurs des a\u00e9ronefs en vol gr\u00e2ce \u00e0 des d\u00e9codeurs ADS-B en temps r\u00e9el, v\u00e9rifier la couverture des paquets Meshtastic et LoRa hors r\u00e9seau, analyser la congestion du Wi-Fi local \u00e0 2,4 GHz et capter les transmissions radio d\u2019urgence num\u00e9riques P25 non crypt\u00e9es.&#13;<\/p>\n<p class=\"bodytext\">Le projet \u00e9tant distribu\u00e9 sous la forme d\u2019une image flash pr\u00e9compil\u00e9e via l\u2019outil M5Burner accessible par navigateur, les utilisateurs peuvent d\u00e9ployer le logiciel en quelques minutes sans avoir \u00e0 compiler le code source. En combinant un tuner USB bon march\u00e9 avec des SoC modernes, OrcSDR prouve que les outils pratiques de veille RF au format de poche ne n\u00e9cessitent plus de mat\u00e9riel commercial co\u00fbteux ni d\u2019ordinateur portable pour \u00eatre op\u00e9rationnels. Pour ceux qui souhaitent construire leur propre OrcSDR, les d\u00e9tails du projet sont disponibles via le lien ci-dessous. <\/p>\n","protected":false},"excerpt":{"rendered":"Le projet OrcSDR s&rsquo;articule autour de la M5Stack Tab5, une tablette portable aliment\u00e9e par batterie et \u00e9quip\u00e9e d&rsquo;un&hellip;\n","protected":false},"author":2,"featured_media":242080,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[70],"tags":[75669,49790,12,13,18,17,75665,75673,1289,75671,75666,75670,1285,24940,75662,75672,525,1287,1286,75674,75668,75664,7784,73,71,75,72,75663,46951,75667,76,74,1288,75675,23481],"class_list":["post-242079","post","type-post","status-publish","format-standard","has-post-thumbnail","category-sciences-et-technologies","tag-ads-b","tag-appareil-portable","tag-be","tag-be-fr","tag-belgique","tag-belgium","tag-esp32","tag-graphique-en-cascade","tag-informations-sur-des-ordinateurs-portatifs","tag-lora","tag-m5stack","tag-meshtastic","tag-nouvelles","tag-open-source","tag-orcsdr","tag-p25","tag-radio","tag-rapport","tag-revues","tag-rf","tag-risc-v","tag-rtlsdr","tag-scanner","tag-science","tag-science-and-technology","tag-sciences","tag-sciences-et-technologies","tag-sdr","tag-spectre","tag-tab5","tag-technologies","tag-technology","tag-test","tag-transpondeur","tag-wi-fi"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@be_fr\/117227728592312352","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/242079","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/comments?post=242079"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/242079\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media\/242080"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media?parent=242079"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/categories?post=242079"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/tags?post=242079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}