{"id":87069,"date":"2023-10-24T17:27:56","date_gmt":"2023-10-24T17:27:56","guid":{"rendered":"https:\/\/afsbprod.wpenginepowered.com\/faq\/"},"modified":"2026-04-08T20:46:34","modified_gmt":"2026-04-08T20:46:34","slug":"faq","status":"publish","type":"page","link":"https:\/\/allianceforsatellitebroadband.org\/fr\/faq\/","title":{"rendered":"Foire Aux Questions"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"87069\" class=\"elementor elementor-87069 elementor-87020\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-95526f2 e-flex e-con-boxed e-con e-parent\" data-id=\"95526f2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1abf8cd elementor-widget elementor-widget-n-accordion\" data-id=\"1abf8cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2800\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-2800\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Quelles sont les limites de l'equivalent power flux-density (EPFD) ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2800\" class=\"elementor-element elementor-element-2b80373 e-con-full e-flex e-con e-child\" data-id=\"2b80373\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-18bb05e elementor-widget elementor-widget-text-editor\" data-id=\"18bb05e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La conception des syst\u00e8mes satellitaires int\u00e8gre, par principe, une marge d\u2019interf\u00e9rence visant \u00e0 permettre le partage du spectre, lequel est assur\u00e9 soit par des m\u00e9canismes de coordination entre les syst\u00e8mes concern\u00e9s, soit par l\u2019instauration de limites r\u00e9glementaires strictes. Les limites de l\u2019EPFD, telles que d\u00e9finies par l\u2019article 22 du  <\/span><a href=\"https:\/\/www.itu.int\/pub\/R-REG-RR-2024\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"><span style=\"font-weight: 400;\">R\u00e8glement des Radiocommunications<\/span><\/a><span style=\"font-weight: 400;\">de l\u2019International Telecommunication Union (ITU), constituent un dispositif r\u00e9glementaire destin\u00e9 \u00e0 restreindre les interf\u00e9rences susceptibles d\u2019\u00eatre g\u00e9n\u00e9r\u00e9es par les syst\u00e8mes NGSO \u00e0 l\u2019encontre des syst\u00e8mes GSO dans certaines bandes de fr\u00e9quences, en l\u2019absence de coordination pr\u00e9alable. Les limites de l\u2019EPFD pr\u00e9vues dans l\u2019Article 22 s\u2019appliquent aux \u00e9missions des syst\u00e8mes NGSO et couvrent l\u2019ensemble des composantes de transmission, \u00e0 savoir la liaison descendante (vers les r\u00e9cepteurs terrestres g\u00e9ostationnaires), la liaison montante (vers le r\u00e9cepteur de la station spatiale g\u00e9ostationnaire), ainsi que les liaisons inter-satellitaires. Un syst\u00e8me satellitaire NGSO qui respecte les limites de l&rsquo;EPFD satisfait \u00e0 son obligation de ne causer aucune interf\u00e9rence inacceptable \u00e0 un r\u00e9seau GSO.   <\/span><\/p><p><span style=\"font-weight: 400;\">Les limites de l\u2019EPFD actuellement en vigueur ont \u00e9t\u00e9 adopt\u00e9es \u00e0 titre provisoire lors de la WRC-97, puis r\u00e9vis\u00e9es \u00e0 l\u2019occasion de la WRC-2000. Elles reposaient sur les caract\u00e9ristiques techniques des r\u00e9seaux GSO con\u00e7us au d\u00e9but et au milieu des ann\u00e9es 1990, ainsi que sur des syst\u00e8mes NGSO th\u00e9oriques envisag\u00e9s dans les bandes Ku et Ka, lesquels n\u2019ont jamais \u00e9t\u00e9 effectivement mis en \u0153uvre. Depuis lors, les avanc\u00e9es technologiques dans le domaine satellitaire et l&rsquo;\u00e9volution des principes de gestion du spectre ont \u00e9t\u00e9 consid\u00e9rables, sans que le cadre r\u00e9glementaire ait fait l\u2019objet d\u2019une mise \u00e0 jour adapt\u00e9e \u00e0 ces transformations.  <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2801\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2801\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Que s\u2019est-il produit lors de la WRC-23 concernant les limites de l\u2019EPFD, et quelles sont les perspectives pr\u00e9vues \u00e0 ce sujet pour la WRC-27\u202f?  <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2801\" class=\"elementor-element elementor-element-7fab35a e-con-full e-flex e-con e-child\" data-id=\"7fab35a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8fc4dff elementor-widget elementor-widget-text-editor\" data-id=\"8fc4dff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La WRC-23 a mandat\u00e9 l\u2019ITU pour conduire des \u00e9tudes relatives aux limites de l\u2019EPFD et a stipul\u00e9 que leurs r\u00e9sultats soient pr\u00e9sent\u00e9s lors de la WRC-27, constituant ainsi une avanc\u00e9e significative en faveur de l\u2019innovation. Les r\u00e9gulateurs du monde entier sont actuellement engag\u00e9s dans la r\u00e9alisation de ces \u00e9tudes techniques. La phase suivante consistera \u00e0 examiner de mani\u00e8re objective les conclusions de ces travaux lors de la WRC-27, afin d\u2019adapter et de moderniser les limites en cons\u00e9quence.  <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2802\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2802\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> De quelle mani\u00e8re les limites de l\u2019EPFD pourront-elles \u00eatre modifi\u00e9es lors de la WRC-27\u202f? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2802\" class=\"elementor-element elementor-element-b5c9da6 e-con-full e-flex e-con e-child\" data-id=\"b5c9da6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cd83513 elementor-widget elementor-widget-text-editor\" data-id=\"cd83513\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-content-6013\" class=\"elementor-tab-content elementor-clearfix\" role=\"tabpanel\" data-tab=\"3\" aria-labelledby=\"elementor-tab-title-6013\"><p><span style=\"font-weight: 400;\">Les r\u00e8gles encadrant l\u2019EPFD sont \u00e9tablies dans le R\u00e8glement des Radiocommunications et peuvent \u00eatre modifi\u00e9es par la WRC \u00e0 l\u2019\u00e9chelle mondiale. Sur la base des r\u00e9sultats des \u00e9tudes qui seront pr\u00e9sent\u00e9s \u00e0 la WRC-27, les membres de l\u2019ITU pourront soumettre des propositions visant \u00e0 moderniser ces limites. <\/span><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2803\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2803\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> La modernisation des limites de l\u2019EPFD pourrait-elle compromettre le fonctionnement des op\u00e9rateurs GSO\u202f? Dans quelle mesure la modification de r\u00e8gles en vigueur depuis longtemps pourrait-elle affecter les missions assur\u00e9es par les satellites GSO, telles que les services de communication, scientifiques, civiques et de d\u00e9fense\/s\u00e9curit\u00e9\u202f?  <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2803\" class=\"elementor-element elementor-element-60c98ea e-flex e-con-boxed e-con e-child\" data-id=\"60c98ea\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2169de7 elementor-widget elementor-widget-text-editor\" data-id=\"2169de7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-content-6014\" class=\"elementor-tab-content elementor-clearfix\" role=\"tabpanel\" data-tab=\"4\" aria-labelledby=\"elementor-tab-title-6014\"><p><span style=\"font-weight: 400;\">Non. Le principe fondamental \u00e9nonc\u00e9 dans l\u2019Article 22.2 \u2013 stipulant que les syst\u00e8mes NGSO doivent s\u2019abstenir de provoquer des brouillages inacceptables envers les r\u00e9seaux GSO \u2013 demeure pleinement valable. Les \u00e9tudes mandat\u00e9es par la WRC-23 porteront principalement sur la d\u00e9finition de param\u00e8tres techniques appropri\u00e9s assurant la mise en \u0153uvre continue de cet article. Toute proposition visant \u00e0 actualiser les r\u00e8gles relatives \u00e0 l\u2019EPFD s\u2019appuiera sur l\u2019analyse objective des \u00e9tudes pr\u00e9sent\u00e9es durant la Conf\u00e9rence. Les limites modernis\u00e9es de l\u2019EPFD continueront d\u2019assurer la protection des syst\u00e8mes GSO.     <\/span><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e5cf2b2 e-flex e-con-boxed e-con e-parent\" data-id=\"e5cf2b2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f0f031d elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f0f031d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-77f4afb e-flex e-con-boxed e-con e-parent\" data-id=\"77f4afb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4f11761 elementor-widget elementor-widget-n-accordion\" data-id=\"4f11761\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-8290\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-8290\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Que sont les limites \u00ab agr\u00e9g\u00e9es \u00bb de l'EPFD ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-8290\" class=\"elementor-element elementor-element-7d7ed81 e-con-full e-flex e-con e-child\" data-id=\"7d7ed81\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-257eb71 elementor-widget elementor-widget-text-editor\" data-id=\"257eb71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-content-1811\" class=\"elementor-tab-content elementor-clearfix deactive-default\" role=\"tabpanel\" data-tab=\"1\" aria-labelledby=\"elementor-tab-title-1811\"><div id=\"elementor-tab-content-1811\" class=\"elementor-tab-content elementor-clearfix deactive-default\" role=\"tabpanel\" data-tab=\"1\" aria-labelledby=\"elementor-tab-title-1811\"><p><span style=\"font-weight: 400;\">L&rsquo;Article 22 du R\u00e8glement des Radiocommunications comporte des dispositions visant \u00e0 garantir la compatibilit\u00e9 des op\u00e9rations NGSO avec les r\u00e9seaux GSO. L\u2019ITU Radiocommunication Bureau est charg\u00e9 du traitement des demandes de NGSO et v\u00e9rifie leur conformit\u00e9 aux limites EPFD \u00e0 entr\u00e9e unique. De plus, les \u00c9tats Membres de l\u2019ITU sont tenus de s\u2019assurer que le brouillage agr\u00e9g\u00e9 r\u00e9el de l\u2019ensemble des syst\u00e8mes NGSO sur les r\u00e9seaux GSO reste inf\u00e9rieur aux limites EPFD agr\u00e9g\u00e9es (contraintes relatives au brouillage cumul\u00e9 de l\u2019ensemble des syst\u00e8mes NGSO cofr\u00e9quentiels). Historiquement, les limites d&rsquo;entr\u00e9e unique provenaient des limites agr\u00e9g\u00e9es et la WRC-23 a exig\u00e9 des \u00e9tudes sur les deux types de limites. L&rsquo;ITU-R, en vertu d&rsquo;un mandat distinct, \u00e9tudie \u00e9galement le processus \u00e0 suivre pour garantir la conformit\u00e9 des diff\u00e9rents syst\u00e8mes NGSO aux limites agr\u00e9g\u00e9es.    <\/span><\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-8291\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-8291\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Les limites de l'EPFD actuelles ont d\u00e9j\u00e0 \u00e9t\u00e9 calcul\u00e9es afin de garantir qu'aucune interf\u00e9rence inacceptable ne se produise avec les satellites GSO. Pourquoi doivent-elles \u00eatre r\u00e9\u00e9valu\u00e9es ?  <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-8291\" class=\"elementor-element elementor-element-d9ffaec e-con-full e-flex e-con e-child\" data-id=\"d9ffaec\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a3f80f elementor-widget elementor-widget-text-editor\" data-id=\"3a3f80f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-content-1812\" class=\"elementor-tab-content elementor-clearfix\" role=\"tabpanel\" data-tab=\"2\" aria-labelledby=\"elementor-tab-title-1812\"><p><span style=\"font-weight: 400;\">Les limites de l&rsquo;EPFD actuelles reposent sur les op\u00e9rations GSO men\u00e9es il y a plus de 25 ans, soit plusieurs d\u00e9cennies avant le lancement des op\u00e9rateurs NGSO actuels, ce qui les rend totalement d\u00e9pass\u00e9es. Les limites de l&rsquo;EPFD actuelles ont un caract\u00e8re excessivement restrictif et imposent aux syst\u00e8mes NGSO de prot\u00e9ger les r\u00e9seaux GSO bien au-del\u00e0 de la norme utilis\u00e9e pour calculer les interf\u00e9rences entre les r\u00e9seaux GSO. L&rsquo;\u00e9tablissement de seuils d&rsquo;interf\u00e9rence particuli\u00e8rement bas n&rsquo;entra\u00eene pas seulement une mauvaise utilisation du spectre, mais aussi des cons\u00e9quences. Les limites de l&rsquo;EPFD imposent des contraintes aux op\u00e9rations NGSO et entravent la concurrence \u00e0 l&rsquo;encontre des communaut\u00e9s qui ont besoin d&rsquo;un acc\u00e8s \u00e0 haut d\u00e9bit. Il est important de pr\u00e9ciser que toute r\u00e9vision des limites de l&rsquo;EPFD garantirait toujours la protection des r\u00e9seaux GSO contre toute interf\u00e9rence inacceptable.     <\/span><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-8292\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-8292\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Comment la mise \u00e0 jour des limites EPFD am\u00e9liorera-t-elle la connectivit\u00e9 ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-8292\" class=\"elementor-element elementor-element-c2a3a76 e-con-full e-flex e-con e-child\" data-id=\"c2a3a76\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0a70aa0 elementor-widget elementor-widget-text-editor\" data-id=\"0a70aa0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La modernisation des limites de l&rsquo;EPFD permet de tirer pleinement parti du potentiel des r\u00e9seaux NGSO, permettant ainsi \u00e0 toutes les r\u00e9gions d&rsquo;\u00e9tendre leur connectivit\u00e9 de quatre mani\u00e8res diff\u00e9rentes: <\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Couverture des zones rurales et isol\u00e9es<\/b>: Dans les territoires o\u00f9 l\u2019implantation de r\u00e9seaux terrestres s\u2019av\u00e8re impraticable, le haut d\u00e9bit satellitaire constitue une solution permettant de fournir aux usagers un service \u00e0 la fois performant et fiable, \u00e9vitant ainsi des d\u00e9lais prolong\u00e9s pouvant s\u2019\u00e9tendre sur plusieurs ann\u00e9es avant l\u2019acc\u00e8s \u00e0 une connexion en fibre optique co\u00fbteuse ou \u00e0 la mise en place d\u2019une station de base.<\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Connectivit\u00e9 du r\u00e9seau de collecte<\/b><span style=\"font-weight: 400;\">: Le haut d\u00e9bit n\u00e9cessite une infrastructure \u201cinterm\u00e9diaire\u201c permettant de relier un r\u00e9seau local aux r\u00e9seaux nationaux et internationaux. Les satellites NGSO assurent un fonctionnement plus robuste et plus rentable du r\u00e9seau en jouant le r\u00f4le d&rsquo;infrastructure interm\u00e9diaire. <\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Redondance du r\u00e9seau<\/b><span style=\"font-weight: 400;\">: En cas de saturation des syst\u00e8mes des r\u00e9seaux principaux, de catastrophes naturelles ou de d\u00e9faillances technologiques, l\u2019Internet fourni par les satellites NGSO constitue une alternative pertinente. Cette solution se r\u00e9v\u00e8le particuli\u00e8rement efficace pour les utilisateurs situ\u00e9s dans des zones o\u00f9 la disponibilit\u00e9 et la stabilit\u00e9 des services Internet sont limit\u00e9es.  <\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Accessibilit\u00e9 \u00e9conomique<\/b><span>: Les satellites NGSO participent \u00e0 la consolidation de la concurrence et \u00e0 l\u2019augmentation de la capacit\u00e9 des r\u00e9seaux, favorisant ainsi une d\u00e9mocratisation de l\u2019acc\u00e8s au haut d\u00e9bit \u00e0 des conditions financi\u00e8res plus avantageuses, par le biais de tarifs comp\u00e9titifs, d\u2019initiatives de r\u00e9seaux communautaires et de mod\u00e8les de distribution innovants. Dans les territoires d\u00e9pourvus d\u2019infrastructures terrestres, le co\u00fbt du haut d\u00e9bit fourni par les syst\u00e8mes GSO reste fr\u00e9quemment prohibitif pour les services publics (tels que les \u00e9tablissements scolaires et les h\u00f4pitaux) ainsi que pour les m\u00e9nages et les petites entreprises. <\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-8293\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-8293\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Les limites modernis\u00e9es de l\u2019EPFD profiteront-elles exclusivement aux entreprises am\u00e9ricaines ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-8293\" class=\"elementor-element elementor-element-011a96b e-flex e-con-boxed e-con e-child\" data-id=\"011a96b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f0ca5f0 elementor-widget elementor-widget-text-editor\" data-id=\"f0ca5f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-content-6014\" class=\"elementor-tab-content elementor-clearfix\" role=\"tabpanel\" data-tab=\"4\" aria-labelledby=\"elementor-tab-title-6014\"><p><span style=\"font-weight: 400;\">Non. De nombreux \u00c9tats disposent de projets int\u00e9grant des satellites en orbite terrestre basse.  <\/span><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-8294\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-8294\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Quel est le lien entre les limites de l'EPFD et la durabilit\u00e9 spatiale ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-8294\" class=\"elementor-element elementor-element-56c3084 e-flex e-con-boxed e-con e-child\" data-id=\"56c3084\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15e563c elementor-widget elementor-widget-text-editor\" data-id=\"15e563c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La modernisation des limites de l\u2019EPFD permettrait une exploitation plus efficiente du spectre et de la capacit\u00e9 satellitaire. En revanche, des limites de l\u2019EPFD devenues obsol\u00e8tes contraignent les op\u00e9rateurs de syst\u00e8mes NGSO \u00e0 sous-exploiter leurs satellites, ce qui implique le d\u00e9ploiement d\u2019un plus grand nombre de satellites pour atteindre un niveau \u00e9quivalent de couverture et de capacit\u00e9.  <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Quelles sont les limites de l&rsquo;equivalent power flux-density (EPFD) ? La conception des syst\u00e8mes satellitaires int\u00e8gre, par principe, une marge d\u2019interf\u00e9rence visant \u00e0 permettre le partage du spectre, lequel est assur\u00e9 soit par des m\u00e9canismes de coordination entre les syst\u00e8mes concern\u00e9s, soit par l\u2019instauration de limites r\u00e9glementaires strictes. Les limites de l\u2019EPFD, telles que d\u00e9finies&hellip;<\/p>\n","protected":false},"author":2,"featured_media":87058,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-87069","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Foire Aux Questions - Alliance for Satellite Broadband<\/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:\/\/allianceforsatellitebroadband.org\/fr\/faq\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Foire Aux Questions - Alliance for Satellite Broadband\" \/>\n<meta property=\"og:description\" content=\"Quelles sont les limites de l&rsquo;equivalent power flux-density (EPFD) ? La conception des syst\u00e8mes satellitaires int\u00e8gre, par principe, une marge d\u2019interf\u00e9rence visant \u00e0 permettre le partage du spectre, lequel est assur\u00e9 soit par des m\u00e9canismes de coordination entre les syst\u00e8mes concern\u00e9s, soit par l\u2019instauration de limites r\u00e9glementaires strictes. Les limites de l\u2019EPFD, telles que d\u00e9finies&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/allianceforsatellitebroadband.org\/fr\/faq\/\" \/>\n<meta property=\"og:site_name\" content=\"Alliance for Satellite Broadband\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-08T20:46:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/allianceforsatellitebroadband.org\/wp-content\/uploads\/2023\/10\/Its-time-to-modernize-outdated-regulations-for-a-more-connected-future-5-1-1024x576.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"576\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\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:\\\/\\\/allianceforsatellitebroadband.org\\\/fr\\\/faq\\\/\",\"url\":\"https:\\\/\\\/allianceforsatellitebroadband.org\\\/fr\\\/faq\\\/\",\"name\":\"Foire Aux Questions - 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La conception des syst\u00e8mes satellitaires int\u00e8gre, par principe, une marge d\u2019interf\u00e9rence visant \u00e0 permettre le partage du spectre, lequel est assur\u00e9 soit par des m\u00e9canismes de coordination entre les syst\u00e8mes concern\u00e9s, soit par l\u2019instauration de limites r\u00e9glementaires strictes. 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