{"id":20809,"date":"2026-03-08T18:19:22","date_gmt":"2026-03-08T18:19:22","guid":{"rendered":"https:\/\/www.calian.com\/advanced-technologies\/gnss_product\/cr8894pxf-anti-jam-four-element-controlled-reception-pattern-antenna-crpa\/"},"modified":"2026-04-29T17:59:02","modified_gmt":"2026-04-29T17:59:02","slug":"cr8894pxf-anti-jam-four-element-controlled-reception-pattern-antenna-crpa","status":"publish","type":"gnss_product","link":"https:\/\/www.calian.com\/advanced-technologies\/fr\/gnss_product\/cr8894pxf-anti-jam-four-element-controlled-reception-pattern-antenna-crpa\/","title":{"rendered":"CR8894PXF+ Antenne anti-brouillage \u00e0 quatre \u00e9l\u00e9ments \u00e0 diagramme de r\u00e9ception contr\u00f4l\u00e9 (CRPA)"},"content":{"rendered":"\n

L’antenne CR8894PXF+ GNSS \u00e0 profil de r\u00e9ception contr\u00f4l\u00e9 (CRPA) de Calian peut att\u00e9nuer\/annuler 1 ou 3 (configurable) interf\u00e9rences ou signaux de brouillage dans les bandes GNSS inf\u00e9rieure (1189 – 1254 MHz) et sup\u00e9rieure (1559 – 1591 MHz) pour un total de deux (2) ou six (6) annulations. Le CR8894PXF+ est un CRPA \u00e0 4 \u00e9l\u00e9ments con\u00e7u pour la r\u00e9ception de signaux GNSS bi-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’antenne \u00e0 large bande prennent \u00e9galement en charge les codes M du GPS sur les bandes L1 et L2. <\/p>\n\n

Les interf\u00e9rences ou le brouillage peuvent saturer l’amplificateur \u00e0 faible bruit (LNA) d’une antenne GNSS standard, la rendant inutilisable. La CR8894SXF+ de Calian utilise deux technologies d’att\u00e9nuation des interf\u00e9rences : le filtrage \u00e9tendu (eXtended Filtering+) (XF+) et une antenne \u00e0 sch\u00e9ma de r\u00e9ception contr\u00f4l\u00e9 (Controlled Reception Pattern Antenna). Le XF+ offre une r\u00e9jection hors bande de > 80 dB entre 400 MHz et 3000 MHz et s\u00e9pare les canaux sup\u00e9rieur et inf\u00e9rieur d’amplification du signal du LNA, si un canal est brouill\u00e9, l’autre reste utilisable. La technologie CRPA cr\u00e9e un sch\u00e9ma de rayonnement nul dans la direction de l’interf\u00e9rence\/du brouillage, emp\u00eachant la saturation du LNA et garantissant un signal GNSS utilisable. La sortie est un signal RF standard avec les interf\u00e9rences supprim\u00e9es et un signal compatible avec tous les r\u00e9cepteurs GNSS commerciaux (COTS). Le CR8894SXF+ int\u00e8gre \u00e9galement un filtrage marin o\u00f9 les signaux Iridium et Inmarsat de 1616 \u00e0 1660 MHz sont rejet\u00e9s. <\/p>\n\n

Le CR8894SXF+ utilise la technologie Accutenna\u00ae de Tallysman et une m\u00e9thodologie de d\u00e9tection et d’att\u00e9nuation des interf\u00e9rences analogiques \u00e0 faible puissance. Il int\u00e8gre l’antenne, la formation de z\u00e9ro et la technologie d’att\u00e9nuation des interf\u00e9rences dans un bo\u00eetier de montage en surface compact et l\u00e9ger. Deux interfaces s\u00e9rie sont fournies : l’une supporte RS232, l’autre RS422. Ces interfaces \u00e9mettent des messages NMEA qui contiennent la d\u00e9tection du brouillage, l’\u00e9tat de l’att\u00e9nuation, la bande du brouilleur et la direction par rapport \u00e0 l’antenne, ce qui am\u00e9liore la connaissance de la situation. <\/p>\n\n

Le bo\u00eetier l\u00e9ger et \u00e9tanche (IP69K) r\u00e9siste aux conditions difficiles, notamment aux applications de d\u00e9tection de brouillage en mer et sur terre. La CR8894PXF+ CRPA est une antenne sur poteau sp\u00e9cialement con\u00e7ue pour les environnements marins et terrestres, avec des inserts 5\/8″-11 TPI ou 1″-14 TPI. Un connecteur RF standard (TNC ou type N) et des connecteurs d’interface s\u00e9rie sont fournis, correctement scell\u00e9s pour \u00e9viter les infiltrations d’eau. <\/p>\n\n

\n
\n

Applications<\/h2>\n\n\n\n
    \n
  • Calendrier critique<\/li>\n\n\n\n
  • La navigation dans des environnements contest\u00e9s<\/li>\n\n\n\n
  • Infrastructure critique GNSS (a\u00e9roports, etc.)<\/li>\n\n\n\n
  • Application de la loi et s\u00e9curit\u00e9 publique<\/li>\n<\/ul>\n<\/div>\n\n\n\n
    \n

    Caract\u00e9ristiques<\/h2>\n\n\n\n
      \n
    • Formation d’un maximum de 3 z\u00e9ros dans chacune des bandes sup\u00e9rieures et inf\u00e9rieures du GNSS<\/li>\n\n\n\n
    • Prise en charge du signal GNSS \u00e0 double bande<\/li>\n\n\n\n
    • Prise en charge du filtrage maritime eXtended Filtering+ (XF+) (Iridium & Inmarsat)<\/li>\n\n\n\n
    • Jusqu’\u00e0 20-40 dB de profondeur de nullit\u00e9<\/li>\n\n\n\n
    • L’interface s\u00e9rie fournit des informations sur l’\u00e9tat et la direction estim\u00e9e du brouilleur.<\/li>\n\n\n\n
    • Bo\u00eetier \u00e9tanche IP69K<\/li>\n<\/ul>\n<\/div>\n\n\n\n
      \n

      Avantages<\/h2>\n\n\n\n
        \n
      • Compatible avec les r\u00e9cepteurs GNSS standard<\/li>\n\n\n\n
      • Tr\u00e8s faible consommation d’\u00e9nergie (150 mA @ 5V)<\/li>\n\n\n\n
      • Petit, l\u00e9ger et peu encombrant, il est id\u00e9al pour de nombreuses utilisations.<\/li>\n\n\n\n
      • Favorise la connaissance de la situation, indique l’\u00e9tat de l’ACPR : brouillage observ\u00e9\/att\u00e9nu\u00e9, fr\u00e9quence et direction.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        L’antenne CR8894PXF+ GNSS \u00e0 profil de r\u00e9ception contr\u00f4l\u00e9 (CRPA) de Calian peut att\u00e9nuer\/annuler 1 ou 3 (configurable) interf\u00e9rences ou signaux de brouillage dans les bandes GNSS inf\u00e9rieure (1189 – 1254 MHz) et sup\u00e9rieure (1559 – 1591 MHz) pour un total de deux (2) ou six (6) annulations. Le CR8894PXF+ est un CRPA \u00e0 4 \u00e9l\u00e9ments con\u00e7u pour la r\u00e9ception …<\/p>\n","protected":false},"featured_media":20995,"menu_order":0,"template":"","meta":{"_acf_changed":true,"content-type":""},"post_tag":[358],"gnss_category":[332],"gnss_industry":[320,353,355,354],"product_type":[352],"mount_type":[360],"class_list":["post-20809","gnss_product","type-gnss_product","status-publish","has-post-thumbnail","hentry","tag-crpa-fr","gnss_category-produits","gnss_industry-application-de-la-loi-et-securite-publique","gnss_industry-calendrier-critique","gnss_industry-infrastructures-critiques","gnss_industry-la-navigation-dans-des-environnements-contestes","product_type-anti-bourrage","mount_type-montage-sur-poteau"],"acf":[],"yoast_head":"\nCR8894PXF+ Antenne anti-brouillage \u00e0 quatre \u00e9l\u00e9ments \u00e0 diagramme de r\u00e9ception contr\u00f4l\u00e9 (CRPA) - Calian Space (GNSS)<\/title>\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_product\/cr8894pxf-anti-jam-four-element-controlled-reception-pattern-antenna-crpa\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CR8894PXF+ Antenne anti-brouillage \u00e0 quatre \u00e9l\u00e9ments \u00e0 diagramme de r\u00e9ception contr\u00f4l\u00e9 (CRPA) - Calian Space (GNSS)\" \/>\n<meta property=\"og:description\" content=\"L’antenne CR8894PXF+ GNSS \u00e0 profil de r\u00e9ception contr\u00f4l\u00e9 (CRPA) de Calian peut att\u00e9nuer\/annuler 1 ou 3 (configurable) interf\u00e9rences ou signaux de brouillage dans les bandes GNSS inf\u00e9rieure (1189 – 1254 MHz) et sup\u00e9rieure (1559 – 1591 MHz) pour un total de deux (2) ou six (6) annulations. 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