{"id":6697,"date":"2023-11-03T16:05:58","date_gmt":"2023-11-03T16:05:58","guid":{"rendered":"https:\/\/www.calian.com\/advanced-technologies\/technologie-anti-brouillage\/"},"modified":"2026-06-02T14:32:40","modified_gmt":"2026-06-02T14:32:40","slug":"anti-jam-technology","status":"publish","type":"page","link":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/","title":{"rendered":"Technologie anti-brouillage"},"content":{"rendered":"\n<div class=\"tbk-hydrate-component\" data-cid=\"08cbff9e-a636-4153-aef9-3989fc881aa7\" data-component=\"Hero\"><section class=\"calian-hero d-flex h-100 position-relative overflow-hidden nav-indent wp-block-calian-com-components-calian-hero media-position-split has-split-image pb-5 pb-lg-0 overlay-themed\"><div class=\"container\"><div class=\"row\"><div class=\"calian-hero__content d-flex col-lg flex-column pb-3 justify-content-center has-breadcrumbs text-left\"><div class=\"calian-hero__copy-wrapper\"><h1 class=\"calian-hero__heading text-white\">Technologie anti-brouillage<\/h1><div class=\"calian-hero__text text-white mt-2 mb-4\">La technologie de l&#8217;antenne <em>Accutenna\u00ae<\/em> Anti-Jam \u00e0 bande unique (L1\/G1\/E1\/B1) de Calian modifie le diagramme de rayonnement de l&#8217;antenne de mani\u00e8re \u00e0 bloquer les signaux de brouillage provenant d&#8217;un angle d&#8217;\u00e9l\u00e9vation de +15 \u00e0 -10 degr\u00e9s au-dessus et au-dessous de l&#8217;horizon. En plus de bloquer les signaux \u00e0 faible \u00e9l\u00e9vation, l&#8217;option AJ augmente l\u00e9g\u00e8rement le gain de l&#8217;antenne \u00e0 des angles d&#8217;\u00e9l\u00e9vation \u00e9lev\u00e9s.<\/div><a href=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2023\/11\/Anti-Jamming-GNSS-antenna-for-timing-applications.pdf\" class=\"btn btn-light mb-4 mt-3\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9l\u00e9chargez la brochure Anti-Jam\u00ae (en anglais)<\/a><\/div><div class=\"calian-hero__breadcrumbs mt-auto mb-0 pt-lg-4 pt-3 pb-lg-0 pb-md-3 pb-1\"><nav aria-label=\"breadcrumb\" class=\"breadcrumb-container\"><ol class=\"breadcrumb\"><li class=\"breadcrumb-item\"><a href=\"https:\/\/www.calian.com\" class=\"breadcrumb-item-link\">Accueil<\/a><\/li><li class=\"breadcrumb-item\"><a href=\"https:\/\/www.calian.com\/#\" class=\"breadcrumb-item-link\">Unit\u00e9 d&#8217;affaires<\/a><\/li><li class=\"breadcrumb-item\" aria-current=\"page\">Titre de la page<\/li><\/ol><\/nav><\/div><\/div><div class=\"calian-hero__media col-md w-100 h-100 pt-lg-5 mt-lg-3 media-style-split\"><div class=\"media-wrapper ps-lg-5 pb-3 pb-lg-0 ml-auto mr-0 w-100 h-100\"><div class=\"advanced-image w-100 h-100\"><img decoding=\"async\" src=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png\" alt=\"\" width=\"800\" height=\"800\" class=\"calian-hero__image\" loading=\"lazy\" \/><\/div><\/div><\/div><\/div><\/div><div class=\"calian-hero__overlay overlay-themed position-absolute w-100 h-100 top-0 start-0 has-image\"><\/div><span><\/span><\/section><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"73792198-0553-49bd-b600-bfb1902eedf5\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-xl wp-block-calian-com-components-calian-container\"><div>\n<div class=\"tbk-hydrate-component\" data-cid=\"6fee4e10-5601-4fa4-8270-c428bc17409a\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"8cd42e1d-dd7d-42d5-bab5-fb30ef2e094a\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-fluid wp-block-calian-com-components-calian-container\"><div>\n<h2 class=\"wp-block-heading\">AJ977XF Antenne GNSS triple bande anti-brouillage<\/h2>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"ef386789-20a6-477c-a79d-043707d1ee91\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--extra-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>L&#8217;antenne anti-brouillage AJ977XF est con\u00e7ue pour att\u00e9nuer les interf\u00e9rences et les signaux de brouillage \u00e9mis par des \u00e9metteurs terrestres proches. Le diagramme de rayonnement de l&#8217;antenne d&#8217;annulation \u00e0 faible angle d&#8217;\u00e9l\u00e9vation (LEANA) offre une suppression \u00e0 large bande de 20 dB (typique) pour tous les signaux de la bande GNSS re\u00e7us \u00e0 un angle d&#8217;\u00e9l\u00e9vation de 0\u00b0 \u00e0 environ 15\u00b0. Ce niveau d&#8217;att\u00e9nuation permet d&#8217;att\u00e9nuer un signal de brouillage de 600 watts diffus\u00e9 \u00e0 un angle d&#8217;\u00e9l\u00e9vation de 10\u00b0, \u00e0 100 m ou plus de l&#8217;antenne AJ977XF. La combinaison du mod\u00e8le de rayonnement \u00e0 faible angle d&#8217;\u00e9l\u00e9vation de Tallysman et des technologies de filtrage \u00e9tendu (filtres profonds et IP3 \u00e9lev\u00e9 (emp\u00eache la saturation en pr\u00e9sence de bruit)) offre un double coup de poing contre le brouillage et le bruit des fr\u00e9quences radio. En m\u00eame temps, le diagramme de rayonnement de l&#8217;AJ977XF au-dessus d&#8217;un angle d&#8217;\u00e9l\u00e9vation de 20\u00b0 offre un excellent gain et un centre de phase qui permet un positionnement pr\u00e9cis et exact.<\/p>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"ef386789-20a6-477c-a79d-043707d1ee91\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--extra-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/aj977xf-anti-jamming-triple-band-gnss-antenna\/\" style=\"background-color:#1f378c\">En savoir plus<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/AJ977XFWEB.png\" alt=\"Antenne cylindrique noire avec une base plus large et un connecteur m&#xE9;tallique &#xE0; la base, sur fond blanc.\" class=\"wp-image-18490\" srcset=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/AJ977XFWEB.png 800w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/AJ977XFWEB-300x300.png 300w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/AJ977XFWEB-150x150.png 150w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/AJ977XFWEB-768x768.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n<\/div><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"41b92aba-b0b6-4051-aa5e-62a3be8d3789\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-xl wp-block-calian-com-components-calian-container\"><div>\n<div class=\"tbk-hydrate-component\" data-cid=\"6fee4e10-5601-4fa4-8270-c428bc17409a\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"5090b4ab-585b-4dbb-aab0-07c53b2494e3\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-fluid wp-block-calian-com-components-calian-container\"><div>\n<h2 class=\"wp-block-heading\">CR8894SXF+ Antenne anti-brouillage \u00e0 quatre \u00e9l\u00e9ments \u00e0 diagramme de r\u00e9ception contr\u00f4l\u00e9 (CRPA)<\/h2>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"ef386789-20a6-477c-a79d-043707d1ee91\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--extra-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/CRPA-Sample-1.png\" alt=\"Un objet rectangulaire argent&#xE9; et noir aux bords incurv&#xE9;s, vu de c&#xF4;t&#xE9; sur un fond blanc.\" class=\"wp-image-18547\" srcset=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/CRPA-Sample-1.png 800w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/CRPA-Sample-1-300x300.png 300w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/CRPA-Sample-1-150x150.png 150w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/CRPA-Sample-1-768x768.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>L&#8217;antenne GNSS CR8894SXF+ CRPA (Controlled Reception Pattern Antenna) de Calian peut att\u00e9nuer\/annuler un (1) signal d&#8217;interf\u00e9rence ou de brouillage dans les bandes GNSS inf\u00e9rieure (1189 -1254 MHz) et sup\u00e9rieure (1559 &#8211; 1591 MHz) pour un total de deux (2) annulations.  <\/p>\n\n\n\n<p>Le CR8894SXF+ est un CRPA \u00e0 4 \u00e9l\u00e9ments con\u00e7u pour la r\u00e9ception de signaux GNSS (Global Navigation Satellite System) \u00e0 double bande. Il prend en charge les bandes de signaux GPS L1\/L2, Galileo E1\/E5b, GLONASS G2\/G3 et BeiDou B1\/B2b. Les \u00e9l\u00e9ments d&#8217;antenne \u00e0 large bande prennent \u00e9galement en charge les codes M du GPS sur les bandes L1 et L2.  <\/p>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"ef386789-20a6-477c-a79d-043707d1ee91\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--extra-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/cr8894sxf\/\" style=\"background-color:#1f378c\">En savoir plus<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"6deeb3eb-8eee-406c-8c07-db5f9a870a8d\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-xl wp-block-calian-com-components-calian-container\"><div>\n<div class=\"tbk-hydrate-component\" data-cid=\"6fee4e10-5601-4fa4-8270-c428bc17409a\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"dc0bde2a-d933-478e-adeb-3a0e4e56e095\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-fluid wp-block-calian-com-components-calian-container\"><div>\n<h2 class=\"wp-block-heading\">Antennes antibrouillage<\/h2>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"ef386789-20a6-477c-a79d-043707d1ee91\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--extra-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>L&#8217;antenne AJ de Calian peut att\u00e9nuer les signaux de brouillage au sol ou pr\u00e8s du sol qui peuvent saturer l&#8217;amplificateur \u00e0 faible bruit (LNA) de l&#8217;antenne et emp\u00eacher les signaux d&#8217;\u00eatre transmis au r\u00e9cepteur GNSS.  <\/p>\n\n\n\n<p>\u00c9tant donn\u00e9 que la fonction AJ r\u00e9duit consid\u00e9rablement la poursuite des satellites \u00e0 faible altitude, il est fortement recommand\u00e9 aux utilisateurs d&#8217;envisager l&#8217;utilisation d&#8217;antennes et de r\u00e9cepteurs qui prennent en charge plus d&#8217;une constellation afin que le r\u00e9cepteur puisse assurer une poursuite continue (poursuite de plus de 4 satellites).<\/p>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"12383733-31e9-4aaf-b13e-0d599cac11ff\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--mobile-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"734\" src=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2023\/11\/AntiJam-Drawing-final-2-1024x734.jpg\" alt=\"Dessin technique d'un dispositif cylindrique avec dimensions. La vue lat&#xE9;rale montre une hauteur de 101,5 mm et une hauteur totale de 127,2 mm. La vue de dessous montre un diam&#xE8;tre de 100 mm et une section plus petite de 78 mm.  \" class=\"wp-image-2904\" srcset=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2023\/11\/AntiJam-Drawing-final-2-1024x734.jpg 1024w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2023\/11\/AntiJam-Drawing-final-2-300x215.jpg 300w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2023\/11\/AntiJam-Drawing-final-2-768x550.jpg 768w, https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2023\/11\/AntiJam-Drawing-final-2.jpg 1034w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"f06d4e80-445b-4e18-ab7c-c5d8cb6c11e7\" data-component=\"Spacer\"><div class=\"calian-spacer wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"e8e96ce7-094c-4d54-913d-c2dfeb0abcf5\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-xl wp-block-calian-com-components-calian-container\"><div>\n<h2 class=\"wp-block-heading\">Mod\u00e8les d&#8217;antennes anti-brouillage Calian<\/h2>\n\n\n\n<div class=\"tbk-hydrate-component\" data-cid=\"12383733-31e9-4aaf-b13e-0d599cac11ff\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--mobile-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><strong>GPS L1\/L2 + Galileo E1\/E5b + GLONASS G2\/G3 + BeiDou B1\/B2b<\/strong><\/th><th><strong>GPS\/QZSSL1\/L2\/L5 + GLONASS G1\/G2\/G3 + Galileo E1\/E5a\/E5b + BeiDou-B1\/B2a\/B2b + NavIC-L5<\/strong><\/th><th><strong>GPS L1 + GLONASS G1 + Galileo E1 + BeiDou B1<\/strong><\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/cr8894sxf\/\">CR8894SXF<\/a><\/td><td><a href=\"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/aj977xf-anti-jamming-triple-band-gnss-antenna\/\">AJ977XF<\/a><\/td><td><a href=\"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/tw3742aj-accutennaanti-jam-single-band-gnss-antenna\/\">TW3742<\/a><\/td><\/tr><tr><td><\/td><td><\/td><td><a href=\"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/tw3752aj-accutenna-anti-jam-single-band-gnss-antenna\/\">TW3752<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"f06d4e80-445b-4e18-ab7c-c5d8cb6c11e7\" data-component=\"Spacer\"><div class=\"calian-spacer wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"382613fb-ea0b-494d-b6fe-e844ad350209\" data-component=\"CalianContainer\"><div class=\"calian-container calian-container-xl wp-block-calian-com-components-calian-container\"><div>\n<h2 class=\"wp-block-heading\">Ressources<\/h2>\n<\/div><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"12383733-31e9-4aaf-b13e-0d599cac11ff\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--mobile-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"tbk-hydrate-component\" data-cid=\"4948cfde-b34c-4588-a7df-ed5fe6fbced7\" data-component=\"ResourceDownload\"><div class=\"calian-resource-download wp-block-calian-com-components-calian-resource-download\"><div class=\"container-fluid mw-1440px\"><div class=\"calian-resource-download__container position-relative mx-auto calian-resource-download__container--light calian-resource-download__container--small mx-auto\"><div class=\"calian-resource-download__wrapper position-relative z-2 p-3 pt-5 p-md-6\"><div class=\"\"><div class=\"calian-resource-download__tile gap-4 gap-md-7\"><div class=\"calian-resource-download__image mx-auto position-relative\"><div class=\"position-relative\"><img decoding=\"async\" src=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/05\/Resilient-GNSS-Thumb.png\" alt=\"Un dispositif d'antenne GNSS est affich&#xE9; au-dessus d'un texte d&#xE9;taillant les solutions GNSS et anti-brouillage de Calian, avec en arri&#xE8;re-plan des images techniques, industrielles et satellitaires.\" width=\"600\" height=\"600\" class=\"img-fluid position-relative z-3\" loading=\"lazy\" \/><\/div><\/div><div class=\"calian-resource-download__content d-flex flex-column justify-content-center align-center\"><h3 class=\"mb-0 ps-0\"><span class=\"me-1 me-md-2\">Solutions GNSS et anti-brouillage r\u00e9silientes<\/span><span class=\"calian-resource-download__label d-inline-block align-middle\">PDF (EN ANGLAIS)<\/span><\/h3><div class=\"mt-3\"><a href=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/8\/2025\/05\/Calian-Resilient-GNSS-WEB.pdf\" target=\"_blank\" class=\"calian-resource-download__link btn btn-primary d-inline-flex align-items-center btn-sm p-5\" rel=\"noreferrer noopener\"><span><i class=\"icon icon-download\"><\/i><\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"tbk-hydrate-component\" data-cid=\"5df3b41c-0075-4a3f-be63-30d43b89b8a1\" data-component=\"ResourceDownload\"><div class=\"calian-resource-download wp-block-calian-com-components-calian-resource-download\"><div class=\"container-fluid mw-1440px\"><div class=\"calian-resource-download__container position-relative mx-auto calian-resource-download__container--light calian-resource-download__container--small mx-auto\"><div class=\"calian-resource-download__wrapper position-relative z-2 p-3 pt-5 p-md-6\"><div class=\"\"><div class=\"calian-resource-download__tile gap-4 gap-md-7\"><div class=\"calian-resource-download__image mx-auto position-relative\"><div class=\"position-relative\"><img decoding=\"async\" src=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2025\/07\/AJ977XF-Thumbnail-1024x1024.jpg\" alt=\"Fiche d'information sur le produit AJ977XF Anti-Jam Multi-Constellation Triple-Band Antenna by Calian, avec une photo de l'antenne et les sp&#xE9;cifications techniques.\" width=\"1024\" height=\"1024\" class=\"img-fluid position-relative z-3\" loading=\"lazy\" \/><\/div><\/div><div class=\"calian-resource-download__content d-flex flex-column justify-content-center align-center\"><h3 class=\"mb-0 ps-0\"><span class=\"me-1 me-md-2\">Fiche technique AJ977XF<\/span><span class=\"calian-resource-download__label d-inline-block align-middle\">PDF (EN ANGLAIS)<\/span><\/h3><div class=\"mt-3\"><a href=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/8\/2024\/06\/Calian&#xAE;-AJ977XF-Datasheet.pdf\" target=\"_blank\" class=\"calian-resource-download__link btn btn-primary d-inline-flex align-items-center btn-sm p-5\" rel=\"noreferrer noopener\"><span><i class=\"icon icon-download\"><\/i><\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"ef386789-20a6-477c-a79d-043707d1ee91\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--extra-small wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"c1743a1b-08f6-4f69-8266-46f39640c89b\" data-component=\"Spacer\"><div class=\"calian-spacer wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"8238946a-abb8-44cd-af62-7f45e7639e66\" data-component=\"CTABar\"><div class=\"calian-cta-bar theme-dark wp-block-calian-com-components-calian-cta-bar\"><div class=\"calian-cta-bar__container container-fluid\"><div class=\"calian-cta-bar__horizontal container-fluid\"><div class=\"row\"><div class=\"calian-cta-bar__horizontal--left col-12 col-lg-3 col-xl-2\"><div class=\"calian-cta-bar__horizontal--logo\"><img decoding=\"async\" src=\"https:\/\/sites.calian.com\/app\/dist\/CalianCTABar-PlaceholderTwo-SXFFARGP.png\" alt=\"\" width=\"180\" height=\"65\" class=\"w-100 h-auto\" loading=\"lazy\" \/><\/div><\/div><div class=\"calian-cta-bar__horizontal--center col-12 col-lg-6 col-xl-7\"><div class=\"calian-cta-bar__horizontal--text\"><p>D\u00e9couvrez l&#8217;impact des interf\u00e9rences GNSS sur les infrastructures critiques et comment l&#8217;antenne anti-brouillage AJ977XF peut am\u00e9liorer la performance de votre signal.<\/p><\/div><\/div><div class=\"calian-cta-bar__horizontal--right col-12 col-lg-3 col-xl-3\"><div class=\"calian-cta-bar__horizontal--button\"><a href=\"https:\/\/www.calian.com\/space\/minimizing-the-impact-of-gnss-interference-on-critical-infrastructure\/\" class=\"btn\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9l\u00e9charger le livre blanc<\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n\n<div class=\"tbk-hydrate-component\" data-cid=\"f8cc1582-b756-477e-aebc-4d13e6671c56\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--large wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n<!-- wp:block null -->\n<div class=\"wp-block-group\">\n<div class=\"tbk-hydrate-component\" data-cid=\"8f1503e3-65c7-4a4d-9f27-7b99d09788f9\" data-component=\"Spacer\"><div class=\"calian-spacer calian-spacer--medium wp-block-calian-com-components-calian-spacer\"><\/div><\/div>\n<\/div>\n<!-- \/wp:block -->","protected":false},"excerpt":{"rendered":"<p>Technologie anti-brouillage La technologie de l&#8217;antenne Accutenna\u00ae Anti-Jam \u00e0 bande unique (L1\/G1\/E1\/B1) de Calian modifie le diagramme de rayonnement de l&#8217;antenne de mani\u00e8re \u00e0 bloquer les signaux de brouillage provenant d&#8217;un angle d&#8217;\u00e9l\u00e9vation de +15 \u00e0 -10 degr\u00e9s au-dessus et au-dessous de l&#8217;horizon. En plus de bloquer les signaux \u00e0 faible \u00e9l\u00e9vation, l&#8217;option AJ augmente l\u00e9g\u00e8rement le gain de l&#8217;antenne &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":7984,"menu_order":117,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"solution":[],"industry":[],"type_classification":[],"class_list":["post-6697","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Technologie anti-brouillage - Space | Calian<\/title>\n<meta name=\"description\" content=\"La technologie Anti-Jamming\u00ae de Calian att\u00e9nue les interf\u00e9rences des signaux de brouillage, garantissant une r\u00e9ception GNSS fiable.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Technologie anti-brouillage - Space | Calian\" \/>\n<meta property=\"og:description\" content=\"La technologie Anti-Jamming\u00ae de Calian att\u00e9nue les interf\u00e9rences des signaux de brouillage, garantissant une r\u00e9ception GNSS fiable.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/\" \/>\n<meta property=\"og:site_name\" content=\"Calian Space (GNSS)\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-02T14:32:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/\",\"url\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/\",\"name\":\"Technologie anti-brouillage - Space | Calian\",\"isPartOf\":{\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png\",\"datePublished\":\"2023-11-03T16:05:58+00:00\",\"dateModified\":\"2026-06-02T14:32:40+00:00\",\"description\":\"La technologie Anti-Jamming\u00ae de Calian att\u00e9nue les interf\u00e9rences des signaux de brouillage, garantissant une r\u00e9ception GNSS fiable.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#primaryimage\",\"url\":\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png\",\"contentUrl\":\"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Technologies\",\"item\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Technologie anti-brouillage\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/#website\",\"url\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/\",\"name\":\"Calian Space (GNSS)\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.calian.com\/advanced-technologies\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Technologie anti-brouillage - Space | Calian","description":"La technologie Anti-Jamming\u00ae de Calian att\u00e9nue les interf\u00e9rences des signaux de brouillage, garantissant une r\u00e9ception GNSS fiable.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/","og_locale":"fr_FR","og_type":"article","og_title":"Technologie anti-brouillage - Space | Calian","og_description":"La technologie Anti-Jamming\u00ae de Calian att\u00e9nue les interf\u00e9rences des signaux de brouillage, garantissant une r\u00e9ception GNSS fiable.","og_url":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/","og_site_name":"Calian Space (GNSS)","article_modified_time":"2026-06-02T14:32:40+00:00","og_image":[{"url":"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/","url":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/","name":"Technologie anti-brouillage - Space | Calian","isPartOf":{"@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#primaryimage"},"image":{"@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#primaryimage"},"thumbnailUrl":"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png","datePublished":"2023-11-03T16:05:58+00:00","dateModified":"2026-06-02T14:32:40+00:00","description":"La technologie Anti-Jamming\u00ae de Calian att\u00e9nue les interf\u00e9rences des signaux de brouillage, garantissant une r\u00e9ception GNSS fiable.","breadcrumb":{"@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#primaryimage","url":"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png","contentUrl":"https:\/\/sites.calian.com\/app\/uploads\/sites\/13\/2024\/06\/TW3742AJ-WEB.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/anti-jam-technology\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/"},{"@type":"ListItem","position":2,"name":"Technologies","item":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss\/technologies\/"},{"@type":"ListItem","position":3,"name":"Technologie anti-brouillage"}]},{"@type":"WebSite","@id":"https:\/\/www.calian.com\/advanced-technologies\/fr\/#website","url":"https:\/\/www.calian.com\/advanced-technologies\/fr\/","name":"Calian Space (GNSS)","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.calian.com\/advanced-technologies\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"}]}},"_links":{"self":[{"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/pages\/6697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/comments?post=6697"}],"version-history":[{"count":52,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/pages\/6697\/revisions"}],"predecessor-version":[{"id":21216,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/pages\/6697\/revisions\/21216"}],"up":[{"embeddable":true,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/pages\/7984"}],"wp:attachment":[{"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/media?parent=6697"}],"wp:term":[{"taxonomy":"solution","embeddable":true,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/solution?post=6697"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/industry?post=6697"},{"taxonomy":"type_classification","embeddable":true,"href":"https:\/\/gnss.calian.com\/fr\/wp-json\/wp\/v2\/type_classification?post=6697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}