{"id":2125,"date":"2025-06-22T13:55:54","date_gmt":"2025-06-22T13:55:54","guid":{"rendered":"https:\/\/kedajammer.com\/?p=2125"},"modified":"2025-06-22T13:55:58","modified_gmt":"2025-06-22T13:55:58","slug":"rf-jamming-vs-gps-spoofing-best-anti-drone-tech-keda","status":"publish","type":"post","link":"https:\/\/kedajammer.com\/fr\/drone-jammer-blogs\/rf-jamming-vs-gps-spoofing-best-anti-drone-tech-keda\/","title":{"rendered":"Brouillage RF contre brouillage GPS : La meilleure technologie anti-drone ?"},"content":{"rendered":"<p>Les drones changent tout, de la mani\u00e8re dont nous filmons les \u00e9v\u00e9nements \u00e0 celle dont nous menons les guerres. Mais \u00e0 mesure que leur nombre augmente, les risques s'accroissent. J'ai travaill\u00e9 suffisamment longtemps dans le domaine des technologies de d\u00e9fense pour voir ce changement se produire en temps r\u00e9el. Qu'il s'agisse d'une manifestation dans le centre d'une ville ou d'une zone d'exclusion a\u00e9rienne pr\u00e8s d'une base militaire, le d\u00e9fi est le m\u00eame :<strong> comment arr\u00eater en toute s\u00e9curit\u00e9, rapidement et l\u00e9galement les drones malveillants ?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"570\" src=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Device-on-Urban-Rooftop.jpg\" alt=\"Dispositif de navigation pour drone sur le toit d&#039;une ville pour la d\u00e9fense anti-drones\" class=\"wp-image-2129\" srcset=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Device-on-Urban-Rooftop.jpg 859w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Device-on-Urban-Rooftop-300x199.jpg 300w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Device-on-Urban-Rooftop-768x510.jpg 768w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Device-on-Urban-Rooftop-18x12.jpg 18w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p>Deux des r\u00e9ponses les plus courantes sont le brouillage des signaux RF et l'usurpation de GPS. J'ai test\u00e9 ces deux techniques dans des situations r\u00e9elles, qu'il s'agisse de stades en plein air ou de bases militaires fictives. Dans cet article,<strong> Je veux expliquer comment chaque m\u00e9thode fonctionne, o\u00f9 elle convient le mieux, et quelles sont ses forces et ses faiblesses. Si vous \u00eates responsable de la s\u00e9curit\u00e9 ou de la planification de la d\u00e9fense, vous devez comprendre ces outils - pas seulement la technique, mais aussi les risques et les co\u00fbts.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-does-rf-signal-jamming-work\"><strong>Comment fonctionne le brouillage des signaux RF ?<\/strong><\/h2>\n\n\n\n<p>Le brouillage RF est une m\u00e9thode brute. Elle inonde l'air de bruit \u00e0 travers les m\u00eames<a href=\"https:\/\/www.jammer-store.com\/drones-frequencies.html\"> les fr\u00e9quences utilis\u00e9es par les drones pour communiquer<\/a>-<strong>g\u00e9n\u00e9ralement 2.4GHz ou 5.8GHz.<\/strong> Lorsqu'il est bien fait, le drone perd sa liaison avec le contr\u00f4leur et se met en vol stationnaire, atterrit ou rentre \u00e0 la maison.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"570\" src=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Vehicle-Mounted-Drone-Jamming-System-in-Desert-Combat.jpg\" alt=\"Syst\u00e8me de brouillage de drone mont\u00e9 sur v\u00e9hicule interceptant les UAV dans le d\u00e9sert\" class=\"wp-image-2130\" srcset=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Vehicle-Mounted-Drone-Jamming-System-in-Desert-Combat.jpg 859w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Vehicle-Mounted-Drone-Jamming-System-in-Desert-Combat-300x199.jpg 300w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Vehicle-Mounted-Drone-Jamming-System-in-Desert-Combat-768x510.jpg 768w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Vehicle-Mounted-Drone-Jamming-System-in-Desert-Combat-18x12.jpg 18w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p>J'ai utilis\u00e9 des brouilleurs portatifs qui fonctionnent instantan\u00e9ment. D\u00e8s que nous les activons, les drones commerciaux s'immobilisent en plein vol ou s'\u00e9crasent en quelques secondes. Mais il y a des limites. Les drones dot\u00e9s d'une technologie de saut de fr\u00e9quence ou de modes autonomes r\u00e9sistent souvent au brouillage. De plus, le bruit affecte les autres appareils \u00e0 proximit\u00e9 - Wi-Fi, Bluetooth, voire les radios d'urgence. Il s'agit l\u00e0 d'un probl\u00e8me juridique et technique majeur, en particulier dans les villes.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fonctionnalit\u00e9<\/th><th>D\u00e9tails<\/th><\/tr><\/thead><tbody><tr><td>Principe<\/td><td>Surcharge la bande RF en bruit<\/td><\/tr><tr><td>Principaux objectifs<\/td><td>Drones grand public avec liaisons RF<\/td><\/tr><tr><td>Gamme (typique)<\/td><td>1-2 km en milieu urbain, 3-5 km en plein champ<\/td><\/tr><tr><td>Vitesse de r\u00e9ponse<\/td><td>Imm\u00e9diate<\/td><\/tr><tr><td>Effets secondaires<\/td><td>Affecte les syst\u00e8mes sans fil situ\u00e9s \u00e0 proximit\u00e9<\/td><\/tr><tr><td>D\u00e9ploiement<\/td><td>Unit\u00e9s portatives ou mont\u00e9es simples<\/td><\/tr><tr><td>Co\u00fbt<\/td><td>Moyen (de quelques centaines \u00e0 quelques milliers de dollars)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Comment les drones sont-ils tromp\u00e9s par le GPS ?<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/www.mcafee.com\/learn\/what-is-gps-spoofing\/\">Usurpation d'identit\u00e9 GPS<\/a> est plus silencieux. Au lieu de couper le drone, il le trompe. L'attaquant envoie<strong> faux signaux GPS <\/strong>qui prennent le pas sur les signaux satellitaires r\u00e9els. Le drone \"croit\" qu'il est ailleurs, il suit donc la mauvaise trajectoire ou atterrit l\u00e0 o\u00f9 vous le souhaitez.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"570\" src=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Effect-Diagram.jpg\" alt=\"Diagramme de l&#039;effet d&#039;usurpation de la navigation des drones avec des trajectoires de vol modifi\u00e9es\" class=\"wp-image-2131\" srcset=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Effect-Diagram.jpg 859w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Effect-Diagram-300x199.jpg 300w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Effect-Diagram-768x510.jpg 768w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Effect-Diagram-18x12.jpg 18w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p>Cette m\u00e9thode est pr\u00e9cise mais difficile \u00e0 mettre en \u0153uvre. Elle n\u00e9cessite des radios logicielles sp\u00e9cialis\u00e9es et une synchronisation exacte pour<a href=\"https:\/\/albedo.com\/post\/how-to-properly-simulate-10-cm-satellite-imagery\"> imiter les signaux des satellites<\/a>. Lors d'un test, nous avons pi\u00e9g\u00e9 un drone pour qu'il s'\u00e9loigne d'une installation s\u00e9curis\u00e9e et atterrisse dans une \"zone s\u00fbre\" situ\u00e9e \u00e0 800 m\u00e8tres de l\u00e0. Pas de brouillage, pas d'alarmes - juste un d\u00e9tournement chirurgical.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fonctionnalit\u00e9<\/th><th>D\u00e9tails<\/th><\/tr><\/thead><tbody><tr><td>Principe<\/td><td>Envoi de faux signaux GPS plus puissants<\/td><\/tr><tr><td>Principaux objectifs<\/td><td>Drones reposant sur la navigation GNSS<\/td><\/tr><tr><td>Gamme (typique)<\/td><td>2-3 km, possibilit\u00e9 d'extension avec des antennes \u00e0 gain \u00e9lev\u00e9<\/td><\/tr><tr><td>Vitesse de r\u00e9ponse<\/td><td>Retard\u00e9 de quelques secondes<\/td><\/tr><tr><td>Effets secondaires<\/td><td>Peut affecter le GPS des t\u00e9l\u00e9phones et des v\u00e9hicules<\/td><\/tr><tr><td>D\u00e9ploiement<\/td><td>Complexe - n\u00e9cessite un \u00e9talonnage et une synchronisation<\/td><\/tr><tr><td>Co\u00fbt<\/td><td>\u00c9lev\u00e9e (dizaines de milliers \u00e0 millions)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Quelle est la technologie la plus adapt\u00e9e aux diff\u00e9rentes situations ?<\/strong><\/p>\n\n\n\n<p>J'ai travaill\u00e9 dans suffisamment d'endroits pour savoir qu'il n'y a pas de r\u00e9ponse universelle. Chaque site, chaque \u00e9v\u00e9nement et chaque mission exigent une approche diff\u00e9rente. Voici comment je d\u00e9cide g\u00e9n\u00e9ralement de ce qu'il faut utiliser :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u00c9v\u00e9nements publics<\/strong><br>Lorsque je s\u00e9curise des concerts ou de grands festivals, j'utilise le brouillage RF. Il agit rapidement et g\u00e8re les menaces typiques des drones grand public. M\u00eame s'il brouille le Wi-Fi, nous acceptons g\u00e9n\u00e9ralement ce compromis pour une protection imm\u00e9diate.<\/li>\n\n\n\n<li><strong>Sites frontaliers et militaires<\/strong><br>C'est l'usurpation de GPS qui l'emporte. Je me souviens d'un essai sur le terrain pr\u00e8s d'une base avanc\u00e9e fictive. \u00c0 l'aide d'antennes directionnelles, nous avons brouill\u00e9 le GPS d'un drone pour qu'il atterrisse en douceur \u00e0 l'ext\u00e9rieur du p\u00e9rim\u00e8tre. Pas de crash, pas de drame.<\/li>\n\n\n\n<li><strong>Zones urbaines<\/strong><br>Les deux m\u00e9thodes sont risqu\u00e9es. Le brouillage affecte le Wi-Fi et les services d'urgence. L'usurpation d'identit\u00e9 peut confondre les voitures ou les t\u00e9l\u00e9phones qui se trouvent \u00e0 proximit\u00e9. C'est pourquoi je combine d'abord le balayage radar et le balayage RF, puis j'utilise l'usurpation d'identit\u00e9 \u00e0 faible puissance si n\u00e9cessaire.<\/li>\n\n\n\n<li><strong>D\u00e9fense \u00e0 long terme<\/strong><br>Les a\u00e9roports et les centrales \u00e9lectriques ont besoin de syst\u00e8mes intelligents \u00e0 plusieurs niveaux. Nous installons des radars, des capteurs RF et des <a href=\"https:\/\/www.spaceforce.mil\/about-us\/fact-sheets\/article\/2197760\/ground-based-electro-optical-deep-space-surveillance\/\">le suivi \u00e9lectro-optique.<\/a> Ensuite, nous laissons l'IA choisir - brouiller si c'est s\u00fbr, usurper si c'est furtif.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"570\" src=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Anti-Drone-Equipment-in-Night-time-Operation.jpg\" alt=\"\u00c9quipement anti-drone (radar, cam\u00e9ra, brouilleur) pour contrer les drones la nuit\" class=\"wp-image-2132\" srcset=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Anti-Drone-Equipment-in-Night-time-Operation.jpg 859w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Anti-Drone-Equipment-in-Night-time-Operation-300x199.jpg 300w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Anti-Drone-Equipment-in-Night-time-Operation-768x510.jpg 768w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Anti-Drone-Equipment-in-Night-time-Operation-18x12.jpg 18w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p><strong>Comparaison des forces et des limites<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fonctionnalit\u00e9<\/th><th>Brouillage des signaux RF<\/th><th>Espionnage du GPS<\/th><\/tr><\/thead><tbody><tr><td>Contr\u00f4le direct<\/td><td>Oui (coupe la commande)<\/td><td>Non (redirige la trajectoire de vol)<\/td><\/tr><tr><td>Fiabilit\u00e9<\/td><td>Drones hauts et simples<\/td><td>Drones \u00e0 haute altitude et drones \u00e9quip\u00e9s d'un GPS<\/td><\/tr><tr><td>Restrictions l\u00e9gales<\/td><td>Tr\u00e8s \u00e9lev\u00e9<\/td><td>Extr\u00eamement \u00e9lev\u00e9<\/td><\/tr><tr><td>Rayon d'impact<\/td><td>Large (perturbation involontaire)<\/td><td>\u00c9troite (zone d'usurpation cibl\u00e9e)<\/td><\/tr><tr><td>Contre-r\u00e9sistance<\/td><td>Faible contre les drones autonomes<\/td><td>Faible contre le GPS crypt\u00e9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Quelle est la prochaine \u00e9tape en mati\u00e8re de technologie ?<\/strong><\/p>\n\n\n\n<p>Le brouillage RF devient de plus en plus pr\u00e9cis. Nous utilisons maintenant l'IA pour apprendre les signaux du drone et adapter le brouillage \u00e0 la vol\u00e9e. J'ai vu des antennes \u00e0 r\u00e9seau phas\u00e9 suivre un drone et le brouiller de mani\u00e8re directionnelle, comme un projecteur de puissance RF.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"570\" src=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Tech-Effect.jpg\" alt=\"Effet d&#039;usurpation de la navigation d&#039;un drone : Sous-station avec technologie circulaire en sc\u00e8ne r\u00e9elle\" class=\"wp-image-2133\" srcset=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Tech-Effect.jpg 859w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Tech-Effect-300x199.jpg 300w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Tech-Effect-768x510.jpg 768w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/Drone-Navigation-Spoofing-Tech-Effect-18x12.jpg 18w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p>L'usurpation du GPS devient multicouche. Certains syst\u00e8mes peuvent falsifier le GPS, le GLONASS et le BeiDou en m\u00eame temps. Dans les laboratoires, nous exp\u00e9rimentons l'\"usurpation coop\u00e9rative\", qui commence par un brouillage doux, puis fait entrer le drone dans une zone de faux GPS.<\/p>\n\n\n\n<p><strong>Ventilation des co\u00fbts<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Cat\u00e9gorie de co\u00fbt<\/th><th>Brouillage des signaux RF<\/th><th>Espionnage du GPS<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/kedajammer.com\/fr\/products\/drone-jammer\/\">Equipement<\/a><\/td><td>$500-$50,000<\/td><td>$10,000-$1M+.<\/td><\/tr><tr><td>Co\u00fbt de fonctionnement<\/td><td>Mod\u00e9r\u00e9 (batterie ou CA)<\/td><td>Faible (alimentation par batterie sur le terrain)<\/td><\/tr><tr><td>Maintenance<\/td><td>Fr\u00e9quents (amplificateurs, usure)<\/td><td>Rare (les horloges atomiques durent longtemps)<\/td><\/tr><tr><td>Temps de d\u00e9ploiement<\/td><td>&lt; 10 minutes<\/td><td>30-60 minutes (\u00e9talonnage du signal)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>R\u00e9flexions finales<\/strong><\/p>\n\n\n\n<p>J'ai \u00e9t\u00e9 sur des toits, dans des bunkers et derri\u00e8re des \u00e9crans en utilisant ces deux technologies. Ce que j'ai appris est simple : utilisez l'outil qui convient \u00e0 la situation. Ni le brouillage ni la mystification ne sont parfaits. Le brouillage est rapide mais d\u00e9sordonn\u00e9. La mystification est propre mais lente.<\/p>\n\n\n\n<p>D'apr\u00e8s mon exp\u00e9rience, la meilleure d\u00e9fense se fait par couches successives. Je recommande de commencer par des radars et des scanners RF. Utilisez l'IA pour d\u00e9terminer \u00e0 quel type de drone vous avez affaire. Ensuite, il faut agir par brouillage s'il s'agit d'un drone s\u00fbr, et par mystification s'il s'agit d'un drone furtif. Certains nouveaux syst\u00e8mes passent m\u00eame automatiquement de l'un \u00e0 l'autre.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"570\" src=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/KEDA-Anti-Drone-Jamming-Devices.jpg\" alt=\"Les dispositifs de brouillage anti-drones KEDA d\u00e9ploy\u00e9s sur le terrain\" class=\"wp-image-2134\" srcset=\"https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/KEDA-Anti-Drone-Jamming-Devices.jpg 859w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/KEDA-Anti-Drone-Jamming-Devices-300x199.jpg 300w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/KEDA-Anti-Drone-Jamming-Devices-768x510.jpg 768w, https:\/\/kedajammer.com\/wp-content\/uploads\/2025\/06\/KEDA-Anti-Drone-Jamming-Devices-18x12.jpg 18w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p>Quel que soit votre choix, respectez la loi. <strong>Ces outils sont puissants et une mauvaise utilisation peut affecter des personnes, des syst\u00e8mes, voire des avions. J'ai vu des cas o\u00f9 des<a href=\"https:\/\/seon.io\/resources\/dictionary\/jamming-attacks\/\"> le brouillage a fait tomber les r\u00e9seaux voisins<\/a>. Ce n'est pas ce que vous voulez.<\/strong><\/p>\n\n\n\n<p>Si vous envisagez de d\u00e9ployer des syst\u00e8mes anti-drones, commencez par cartographier votre environnement. Quels sont les types de drones les plus courants ? \u00c0 quelle vitesse devez-vous r\u00e9agir ? Y a-t-il des civils \u00e0 proximit\u00e9 ?<\/p>\n\n\n\n<p><strong>Les r\u00e9ponses \u00e0 ces questions vous aideront \u00e0 d\u00e9cider non seulement quelle technologie utiliser, mais aussi comment l'utiliser de mani\u00e8re responsable.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Les drones changent tout, de la mani\u00e8re dont nous filmons les \u00e9v\u00e9nements \u00e0 celle dont nous menons les guerres. Mais \u00e0 mesure que leur nombre augmente, les risques s'accroissent. J'ai travaill\u00e9 suffisamment longtemps dans le domaine des technologies de d\u00e9fense pour voir ce changement se produire en temps r\u00e9el. Qu'il s'agisse d'une manifestation dans le centre d'une ville ou d'une zone d'exclusion a\u00e9rienne pr\u00e8s d'une base militaire, le d\u00e9fi [...]<\/p>","protected":false},"author":1,"featured_media":2128,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[25],"tags":[40,44,42,41,37,43,46,38],"class_list":["post-2125","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drone-jammer-blogs","tag-china","tag-customized","tag-factory","tag-in-stock","tag-manufacturers","tag-newest","tag-price","tag-suppliers"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>RF Jamming vs GPS Spoofing: Best Anti-Drone Tech? - KEDA<\/title>\n<meta name=\"description\" content=\"Compare RF signal jamming and GPS spoofing for drone defense. 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