{"id":27,"date":"2023-08-23T14:15:55","date_gmt":"2023-08-23T14:15:55","guid":{"rendered":"https:\/\/itu-app42363.pagelyhosting.com\/itu-r-study-groups\/?page_id=27"},"modified":"2024-07-08T13:00:47","modified_gmt":"2024-07-08T13:00:47","slug":"wp-1a","status":"publish","type":"page","link":"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/sg-1\/wp-1a\/","title":{"rendered":"WP 1A"},"content":{"rendered":"    <div class=\"ituContainer grid\">\n                        <div data-span=\"8\">\n                    <div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\">Working Parties 1A &#8211; Spectrum engineering techniques &#8211; (WP 1A)<\/h2>\n<\/div>                    <div class=\"ituContainer\">\n<p class=\"wp-block-paragraph\">Spectrum engineering techniques, including unwanted emissions, frequency tolerance, technical aspects of sharing, spectrum engineering, computer programs, technical definitions, Earth-station coordination areas and technical spectrum efficiency.<\/p>\n<\/div>                    <div class=\"ituContainer\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.itu.int\/dms_pub\/itu-r\/opb\/gen\/R-GEN-SGB-2020-PDF-E.pdf#page=20&amp;pagemode=none\" target=\"_blank\" rel=\"noreferrer noopener\">More<\/a><em>&nbsp;(updated version under preparation)<\/em><\/p>\n<\/div>                    <div class=\"ituContainer\">\n<ul class=\"wp-block-list\"><div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/net4\/ITU-R\/ml\/-\/Study%20Groups%21SG%201%21WP%201A\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>WP 1A Mailing Lists,&nbsp;Rapporteu\u200br and Correspondence&nbsp;Groups<\/strong><\/a><strong>&nbsp;&nbsp;&#8211;&nbsp;<\/strong><a href=\"https:\/\/www.itu.int\/dms_pub\/itu-r\/oth\/0a\/01\/R0A010000050001PDFE.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">How to use<\/a>\u200b<strong>&nbsp;<\/strong><\/li>\n<\/div><\/ul>\n<\/div>            <\/div>\n                        <div data-span=\"4\">\n                        <section>\n        <div class=\"ituContainer grid\">\n                                                        <a class=\"ituCard anim\" data-span=\"12\" href=\"http:\/\/www.itu.int\/en\/ITU-R\/information\/events\/webcast\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/play.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Webcast\u00a0<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                    <\/div>\n    <\/section>\n            <\/div>\n            <\/div>\n\n\n    <div class=\"ituContainer grid\">\n        <div data-span=\"12\">\n                            <div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\" id=\"next-meeting\">Next Meeting<\/h2>\n<\/div>                                <section>\n        <div class=\"ituContainer grid\">\n            <ul class=\"ituTimeline\" data-span=\"8\">\n                                        <li>\n        <div class=\"ituCard alt\">\n            <div class=\"main\">\n                <div class=\"content\">\n                    <p class=\"MsoNormal\"><b><a href=\"https:\/\/www.itu.int\/events\/eventdetails.asp?eventid=22382\">Wednesday 2025-06-11 <\/a><\/b><\/p><p class=\"MsoNormal\"><b>Place :<\/b><span lang=\"EN-US\"> Switzerland [Geneva] &#8211; <b>Status<\/b> : Planned<\/span><\/p>                <\/div>\n            <\/div>\n        <\/div>\n    <\/li>\n                                        <li>\n        <div class=\"ituCard alt\">\n            <div class=\"main\">\n                <div class=\"content\">\n                    <p class=\"MsoNormal\"><\/p><p class=\"MsoNormal\"><b><b><a href=\"https:\/\/www.itu.int\/events\/eventdetails.asp?eventid=22382\">Wednesday 2025-06-18<\/a><\/b><\/b><\/p><p class=\"MsoNormal\"><b style=\"font-size: revert; color: initial; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen-Sans, Ubuntu, Cantarell, &quot;Helvetica Neue&quot;, sans-serif;\">Place :<\/b><span lang=\"EN-US\" style=\"font-size: revert; color: initial; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen-Sans, Ubuntu, Cantarell, &quot;Helvetica Neue&quot;, sans-serif;\"> Switzerland [Geneva] &#8211; <b>Status<\/b> : Planned<\/span><\/p><p class=\"MsoNormal\"><\/p>                <\/div>\n            <\/div>\n        <\/div>\n    <\/li>\n                            <\/ul>\n        <\/div>\n    <\/section>\n                                <section>\n        <div class=\"ituContainer grid\">\n                    <\/div>\n    <\/section>\n                                <section>\n        <div class=\"ituContainer grid\">\n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R00-CACE-CIR-1067\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/registration.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Registration<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/extranet.itu.int\/rsg-meetings\/sg5\/default.aspx\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/computer-windows.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Remote Participation\u200b<\/p>\n                                                            <p>Sharepoint site<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"mailto:rsg1@itu.int\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/arobase.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Contributions Submission\u00a0<\/p>\n                                                            <p>rsg1@itu.int<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R19-SG01-C-0066\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/side-event.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">WP 1A Meetings <\/p>\n                                                            <p>Sharepoint site TIES<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                <div data-span=\"6\">\n                    <div class=\"ituContainer\">\n<p class=\"wp-block-paragraph\"><a rel=\"noreferrer noopener\" href=\"http:\/\/www.itu.int\/en\/events\/Pages\/Calendar-Events.aspx?sector=ITU-R&amp;group=R19-SG03\" target=\"_blank\"><\/a><a rel=\"noreferrer noopener\" href=\"http:\/\/www.itu.int\/en\/events\/Pages\/Calendar-Events.aspx?sector=ITU-R&amp;group=R19-SG04\" target=\"_blank\"><\/a><a rel=\"noreferrer noopener\" href=\"http:\/\/www.itu.int\/en\/events\/Pages\/Calendar-Events.aspx?sector=ITU-R&amp;group=R19-SG05\" target=\"_blank\"><\/a><a rel=\"noreferrer noopener\" href=\"http:\/\/www.itu.int\/en\/events\/Pages\/Calendar-Events.aspx?sector=ITU-R&amp;group=R19-WP1A\" target=\"_blank\">All meeting\u200bs (WP 1A)<\/a>\u200b\u200b\u200b\u200b\u200b<\/p>\n<\/div>            <\/div>\n                    <\/div>\n    <\/section>\n                            <div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\" id=\"documents\">Contributions Documents<\/h2>\n<\/div>                                <section>\n        <div class=\"ituContainer grid\">\n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R19-WP1A.AR-C\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/file-and-paper.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Contributions<\/p>\n                                                            <p>&#8220;as received&#8221;<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R23-WP1A-C\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/file-and-paper.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Contributions<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/dms_pub\/itu-r\/oth\/0a\/0e\/R0A0E0000A90008MSWE.docx\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/ppt-template.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Template \u200b<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R19-WP1A-C-0277\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/Briefings.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Chair\u200b&#8217;s Report <\/p>\n                                                            <p>TIES<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                    <\/div>\n    <\/section>\n                            <div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\" id=\"documents\">Main Documents<\/h2>\n<\/div>                                <section>\n        <div class=\"ituContainer grid\">\n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R19-WP1A-ADM\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/files.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Administrative Documents <\/p>\n                                                            <p>(ADM)\u00a0<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R19-WP1A-INF\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/files.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Information Documents <\/p>\n                                                            <p>(INFO)\u00a0<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R19-WP1A-230529-TD\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/files.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Temporary Documents <\/p>\n                                                            <p>(DT)<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/extranet.itu.int\/rsg-meetings\/sg1\/wp1a\/Share\/Forms\/Column%20view.aspx\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/files.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Informal documents <\/p>\n                                                            <p>on Sharepoint\u00a0<\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                    <\/div>\n    <\/section>\n                            <div class=\"ituContainer\">\n<p class=\"wp-block-paragraph\"><a rel=\"noreferrer noopener\" href=\"https:\/\/www.itu.int\/dms_pages\/itu-r\/md\/00\/cace\/R00-CACE-RSS.xml\" target=\"_blank\"><\/a><\/p>\n<\/div>                    <\/div>\n    <\/div>\n\n\n<div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\" id=\"documents\">Tools and Resources<\/h2>\n<\/div>\n\n    <section>\n        <div class=\"ituContainer grid\">\n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/extranet.itu.int\/brdocsearch\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/search.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Documents Search Tool\u200b\u200b<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/ITU-R\/index.asp?category=study-groups&#038;rlink=rsg-sync&#038;scope=full&#038;lang=en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/IT-facilities.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Study Group Sync Applications<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/md\/R15-SG03-C-0001\/en\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/RSGD\/wp-content\/uploads\/sites\/37\/2023\/12\/list.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Status of texts<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"https:\/\/www.itu.int\/en\/ITU-R\/study-groups\/Pages\/archives.aspx\" target='blank' rel='noreferrer noopener'>\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/archive.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Document Archives<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                    <\/div>\n    <\/section>\n\n\n<div class=\"ituContainer\">\n<ul class=\"wp-block-list\"><div class=\"ituContainer\">\n<li><em>(<a href=\"https:\/\/www.itu.int\/md\/R15-WP1A-C\/en\">Contributions Study \u200bP\u200beriod 2015-2019\u200b<\/a>)<\/em>\u00a0<\/li>\n<\/div><\/ul>\n<\/div>\n\n<div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\" id=\"related-meetings\">Related Documents<\/h2>\n<\/div>\n\n    <section>\n        <div class=\"ituContainer grid\">\n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"#References\" >\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/file.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">References<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"#Related-Texts\" >\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/document.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Related ITU-R Texts<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                                                        <a class=\"ituCard anim\" data-span=\"3\" href=\"#Circulars\" >\n                    <div class=\"content center\">\n                <div class=\"main\">\n                    <img decoding=\"async\" src=\"https:\/\/itu-app42363.pagelyhosting.com\/rsgd\/wp-content\/uploads\/sites\/37\/2023\/12\/document.png\" class=\"icon\" alt=\"icon\" \/>\n                                            <p class=\"title\">Circulars<\/p>\n                                                            <p><\/p>\n                                    <\/div>\n            <\/div>\n                    <\/a>\n    \n                    <\/div>\n    <\/section>\n\n\n    <div class=\"ituContainer grid\">\n        <div data-span=\"12\">\n                            \n<div class=\"wp-block-pb-accordion-item c-accordion__item js-accordion-item no-js\" data-initially-open=\"false\" data-click-to-close=\"true\" data-auto-close=\"true\" data-scroll=\"false\" data-scroll-offset=\"0\" id=\"References\"><h2 id=\"at-270\" class=\"c-accordion__title js-accordion-controller\" role=\"button\"><\/h2><div id=\"ac-270\" class=\"c-accordion__content\"><div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\">References<\/h2>\n<\/div>\n\n<div class=\"ituContainer\">\n<ul class=\"wp-block-list\"><div class=\"ituContainer\">\n<li>\u200b<a href=\"https:\/\/www.itu.int\/pub\/S-CONF-PLEN-2019\" target=\"_blank\" rel=\"noreferrer noopener\">Constitution and Convention<\/a>\u00a0<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/S-CONF-ACTF\" target=\"_blank\" rel=\"noreferrer noopener\">Final Acts of PP\u200b<\/a>\u00a0\u200b<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-REG-RR\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Radio Regulations<\/a>\u00a0<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-REG-ROP\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Rules of Procedure<\/a>\u00a0<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-ACT-WRC.16-2024\" target=\"_blank\" rel=\"noreferrer noopener\">Final Acts WRC-23<\/a>\u00a0<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/meetingdoc.asp?lang=en&amp;parent=R23-WRC23-C&amp;class=MINS\" target=\"_blank\" rel=\"noreferrer noopener\">Minutes of the WRC-23\u00a0Plenaries\u200b<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-CR-CIR-0504\/en\" target=\"_blank\" rel=\"noreferrer noopener\">WRC-23\u200b decisions<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/en\/ITU-R\/conferences\/RRB\/Documents\/ai%204_1_compendium%20to%20be%20published%20as%20special%20topics_English.docx\" target=\"_blank\" rel=\"noreferrer noopener\">\u200bPlena\u200bry decisions of past WRCs not reflected in the Radio Regulations<\/a>\u200b\u200b\u200b<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-CA-CIR-0270\/en\" target=\"_blank\" rel=\"noreferrer noopener\">CA\/270\u200b<\/a>\u00a0(Results of CPM27-1)\u00a0\u200b\u200b<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/meetingdoc.asp?lang=en&amp;parent=R23-RA23-C&amp;class=SR\" target=\"_blank\" rel=\"noreferrer noopener\">RA-23\u200b \u200bSummary\u00a0Reports\u200b<\/a>\u200b<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li>\u200b<a href=\"https:\/\/www.itu.int\/pub\/R-RES-R.1\/en\">Working methods (Resolution ITU-R 1)<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/dms_pub\/itu-r\/oth\/0a\/01\/R0A010000040001MSWE.docx\">Guidelines for the working methods<\/a>\u00a0<em>(updated on 16.02.24)\u200b<\/em><br><em>Note: This document is available in the six languages on the Study Group webpage<\/em><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/dms_pub\/itu-r\/oth\/0a\/0E\/R0A0E0000970001MSWE.docx\">Format of ITU-R Recommendations<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/en\/language-tools\/Pages\/default.aspx\">ITU Style Guides<\/a>\u00a0\u200b<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/ITU-R\/index.asp?redirect=true&amp;category=information&amp;link=terminology-database&amp;lang=en&amp;adsearch=&amp;SearchTerminology=&amp;sector=&amp;language=all&amp;part=abbreviationterm&amp;kind=anywhere\">ITU Terms and D\u200be\u200bfinitions Database\u200b<\/a>\u00a0<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-RES-R.4\/en\">Structure of Radiocommunication Study Groups (Resolution ITU-R 4)<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/en\/ITU-R\/study-groups\/Pages\/extcoop.aspx\">Liaison and collaboration with other relevant organizations (Resolution ITU-R 9)<\/a><\/li>\n<\/div><\/ul>\n<\/div><\/div><\/div>\n                            \n<div class=\"wp-block-pb-accordion-item c-accordion__item js-accordion-item no-js\" data-initially-open=\"false\" data-click-to-close=\"true\" data-auto-close=\"true\" data-scroll=\"false\" data-scroll-offset=\"0\" id=\"Related-Texts\"><h2 id=\"at-271\" class=\"c-accordion__title js-accordion-controller\" role=\"button\"><\/h2><div id=\"ac-271\" class=\"c-accordion__content\"><div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\">Related ITU-R Texts<\/h2>\n<\/div>\n\n<div class=\"ituContainer\">\n<ul class=\"wp-block-list\"><div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/publ\/R-QUE-SG01\/en\">ITU-R Questions &#8211; SG 1<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/en\/publications\/ITU-R\/pages\/publications.aspx?parent=R-QUE-SG01&amp;r_que_group=WP1A\">ITU-R Questions &#8211; WP 1A<\/a>\u00a0<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/rec\/R-REC-SM\/en\">Recommendations &#8211; ITU-R\u00a0SM Series<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/publ\/R-REP-SM\/en\">Reports &#8211; ITU-R\u00a0 SM Series<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-HDB\/en\">ITU-R Handbooks<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-RES\/en\">ITU-R Resolutions<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-OP\/en\">ITU-R Opinions<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/dms_pub\/itu-r\/oth\/0a\/02\/R0A020000080001MSWE.docx\">\u200bStatus of studies\u200b<\/a>\u200b<\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/pub\/R-OP\/en\"><\/a><a href=\"https:\/\/www.itu.int\/md\/R23-SG01-C-0001\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Assignment of texts to the Study Group 1 Sub-Groups\u200b<\/a>\u00a0<\/li>\n<\/div><\/ul>\n<\/div><\/div><\/div>\n                            \n<div class=\"wp-block-pb-accordion-item c-accordion__item js-accordion-item no-js\" data-initially-open=\"false\" data-click-to-close=\"true\" data-auto-close=\"true\" data-scroll=\"false\" data-scroll-offset=\"0\" id=\"Circulars\"><h2 id=\"at-272\" class=\"c-accordion__title js-accordion-controller\" role=\"button\"><\/h2><div id=\"ac-272\" class=\"c-accordion__content\"><div class=\"ituContainer\">\n<h2 class=\"wp-block-heading\">Circulars<\/h2>\n<\/div>\n\n<div class=\"ituContainer\">\n<ul class=\"wp-block-list\"><div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-CA-CIR\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Administrative Circulars (CA)<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-CACE-CIR\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Administrative Circulars (CACE)<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-SG01-CIR\/en\" target=\"_blank\" rel=\"noreferrer noopener\">1\/LCCEs<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-CR-CIR\/en\" target=\"_blank\" rel=\"noreferrer noopener\">\u200bCircular Letters (CR)\u200b\u200b\u200b<\/a><\/li>\n<\/div>\n\n<div class=\"ituContainer\">\n<li><a href=\"https:\/\/www.itu.int\/md\/R00-CAR-CIR\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Administrative Circulars \u200b(CAR) &#8211; Archives<\/a><\/li>\n<\/div><\/ul>\n<\/div><\/div><\/div>\n                    <\/div>\n    <\/div>\n\n\n    <div class=\"ituContainer grid\">\n        <div data-span=\"12\">\n                    <\/div>\n    <\/div>\n\n\n<div class=\"ituContainer\">\n<style> \r\n\r\n.ituCard .content .main .icon {\r\n    max-width: 80px;\r\n    width: 80%;\r\n    margin-bottom: 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