| Total: 213 |
| Radiocommunication Sector (ITU-R) - SiteMap |
ITU-R Home
http://www.itu.int/ITU-R/go/rhome/en | Information
http://www.itu.int/ITU-R/go/rinfo/en | Administrative Circulars and Circulars Letters
http://www.itu.int/ITU-R/go/itur-circulars/en |
Administrative Circulars (CA)
http://www.itu.int/ITU-R/go/circulars-ca/en | Administrative Circulars (CACE)
http://www.itu.int/ITU-R/go/circulars-cace/en | Circular Letters (CCRR)
http://www.itu.int/ITU-R/go/circulars-ccrr/en |
Circular Letters (CM)
http://www.itu.int/ITU-R/go/circulars-cm/en | Circular Letters (CR)
http://www.itu.int/ITU-R/go/circulars-cr/en | Circular Letters (LCCE) - SG1
http://www.itu.int/ITU-R/go/circulars-lcce-rsg1/en |
Circular Letters (LCCE) - SG3
http://www.itu.int/ITU-R/go/circulars-lcce-rsg3/en | Circular Letters (LCCE) - SG4
http://www.itu.int/ITU-R/go/circulars-lcce-rsg4/en | Circular Letters (LCCE) - SG5
http://www.itu.int/ITU-R/go/circulars-lcce-rsg5/en |
Circular Letters (LCCE) - SG6
http://www.itu.int/ITU-R/go/circulars-lcce-rsg6/en | Circular Letters (LCCE) - SG7
http://www.itu.int/ITU-R/go/circulars-lcce-rsg7/en | Mission statement
http://www.itu.int/ITU-R/go/mission-statement/en |
Sector strategy objectives and priorities
http://www.itu.int/ITU-R/go/itur-priorities/en | Sector Organization
http://www.itu.int/ITU-R/go/sector-organization/en | The ITU and Radiocommunications
http://www.itu.int/ITU-R/go/new-itu/en |
Radiocommunication Bureau
http://www.itu.int/ITU-R/go/br/en | Director of the Radiocommunication Bureau
http://www.itu.int/ITU-R/go/director/en | Associates
http://www.itu.int/ITU-R/go/associates/en |
Operational Plans
http://www.itu.int/ITU-R/go/operational-plans/en | Chairmen and Vice-Chairmen
http://www.itu.int/ITU-R/go/chairmen/en | ITU Terms and Definitions
http://www.itu.int/ITU-R/go/terminology-database/en |
Emergency Radiocommunications
http://www.itu.int/ITU-R/go/emergency/en | Regionally harmonized bands
http://www.itu.int/ITU-R/go/emergency-bands/en | Address and contacts
http://www.itu.int/ITU-R/go/address-contacts/en |
Mailing lists
http://www.itu.int/ITU-R/go/mailing-list/en | Forum
http://www.itu.int/ITU-R/go/forum/en | ITU-R Web Bookmarks to update
http://www.itu.int/ITU-R/go/bookmarks-updated/en |
Useful Information
http://www.itu.int/ITU-R/go/useful-information/en | ITU-R Electronic facilities
http://www.itu.int/ITU-R/go/e-facilities/en | Templates
http://www.itu.int/ITU-R/go/itur-templates/en |
Conferences and Meetings
http://www.itu.int/ITU-R/go/rconf/en | World Radiocommunication Conferences (WRC)
http://www.itu.int/ITU-R/go/wrc/en | [WRC-short] WRC-12 - World Radiocommunication Conference 2012 (WRC-12)
http://www.itu.int/ITU-R/go/wrc-12/en |
[WRC-short] WRC-07 - World Radiocommunication Conference 2007 (WRC-07)
http://www.itu.int/ITU-R/go/wrc-07/en | World Radiocommunication Conference 2003 (WRC-03)
http://www.itu.int/ITU-R/go/wrc-03/en | World Radiocommunication Conference 2000 (WRC-2000)
http://www.itu.int/ITU-R/go/wrc-00/en |
World Radiocommunication Conference 1997 (WRC-97)
http://www.itu.int/ITU-R/go/wrc-97/en | World Radiocommunication Conference 1995 (WRC-95)
http://www.itu.int/ITU-R/go/wrc-95/en | Radiocommunication Assemblies (RA)
http://www.itu.int/ITU-R/go/ra/en |
[RA-short] RA-12 - Radiocommunication Assembly 2012 (RA-12)
http://www.itu.int/ITU-R/go/ra-12/en | [RA-short] RA-07 - Radiocommunication Assembly 2007 (RA-07)
http://www.itu.int/ITU-R/go/ra-07/en | Radiocommunication Assembly 2003 (RA-03)
http://www.itu.int/ITU-R/go/ra-03/en |
Radiocommunication Assembly 2000 (RA-2000)
http://www.itu.int/ITU-R/go/ra-00/en | Radiocommunication Assembly 1997 (RA-97)
http://www.itu.int/ITU-R/go/ra-97/en | Regional Radiocommunication Conferences (RRC)
http://www.itu.int/ITU-R/go/rrc/en |
Regional Radiocommunication Conference (RRC-06)
http://www.itu.int/ITU-R/go/rrc-06/en | Regional Radiocommunication Conference for the Revision of the ST61 Agreement (RRC-06-Rev.ST61)
http://www.itu.int/ITU-R/go/rrc-06-rev-st61/en | Regional Radiocommunication Conference for the Revision of the GE89 Agreement (RRC-06-Rev.GE89)
http://www.itu.int/ITU-R/go/rrc-06-rev-ge89/en |
Intersessional Activities (RRC-04/06)
http://www.itu.int/ITU-R/go/rrc-int/en | Regional Radiocommunication Conference (RRC-04)
http://www.itu.int/ITU-R/go/rrc-04/en | Radiocommunication Seminars and Workshops
http://www.itu.int/ITU-R/go/seminars/en |
World Radiocommunication Seminar 2008 (WRS-08)
http://www.itu.int/ITU-R/go/geneva-2008/en | BR/BDT Regional seminar on Regulatory, technical and economic aspects of the introduction of digital broadcasting in the RCC countries", Bishkek, Kyrgyz Republic
http://www.itu.int/ITU-R/go/bishkek-2008/en | BR/BDT Regional Seminar on Convergence of radio services, Yerevan, 2008
http://www.itu.int/ITU-R/go/yerevan-2008/en |
Argentina, Buenos Aires, 2008
http://www.itu.int/ITU-R/go/buenos-aires-2008/en | United Arab Emirates, Abu-Dhabi, 2007
http://www.itu.int/ITU-R/go/abu-dhabi-2007/en | BR/BDT Seminar on Digital Broadcasting, Moscow, 2006
http://www.itu.int/ITU-R/go/moscow-2006/en |
Biennial Seminar of the Radiocommunication Bureau - Geneva, 2006
http://www.itu.int/ITU-R/go/geneva-2006/en | BR/BDT Seminar on Regional Satellite Communication Systems, Yerevan, 2006
http://www.itu.int/ITU-R/go/yerevan-2006/en | Brazil, Porto Seguro, 2005
http://www.itu.int/ITU-R/go/porto-seguro-2005/en |
Indonesia, Bali, 2005
http://www.itu.int/ITU-R/go/bali-2005/en | Biennial Seminar of the Radiocommunication Bureau - Geneva, 2004
http://www.itu.int/ITU-R/go/geneva-2004/en | Kazakhstan, Almaty, 2004
http://www.itu.int/ITU-R/go/almaty-2004/en |
Korea (Rep. of), Jeju-do, 2003
http://www.itu.int/ITU-R/go/jeju-do-2003/en | Zambia, Lusaka, 2003
http://www.itu.int/ITU-R/go/lusaka-2003/en | Biennial Seminar of the Radiocommunication Bureau - Geneva, 2002
http://www.itu.int/ITU-R/go/geneva-2002/en |
Mexico, Mexico City, 2001
http://www.itu.int/ITU-R/go/mexico-2001/en | Biennial Seminar of the Radiocommunication Bureau - Geneva, 2000
http://www.itu.int/ITU-R/go/geneva-2000/en | Mali, Bamako, 1999
http://www.itu.int/ITU-R/go/bamako-1999/en |
Cuba, 1999
http://www.itu.int/ITU-R/go/cuba-1999/en | Ukraine, Kiev, 1999
http://www.itu.int/ITU-R/go/kiev-1999/en | [List-short] RAG - Radiocommunication Advisory Group (RAG)
http://www.itu.int/ITU-R/go/rag/en |
Radio Regulations Board (RRB)
http://www.itu.int/ITU-R/go/rrb/en | RRB Members
http://www.itu.int/ITU-R/go/rrb-members/en | Publications
http://www.itu.int/ITU-R/go/publications/en |
Regulatory Publications
http://www.itu.int/ITU-R/go/regulatory-publications/en | Radio Regulations
http://www.itu.int/ITU-R/go/radio-regulations/en | Rules of Procedure
http://www.itu.int/ITU-R/go/rules-procedure/en |
High Frequency Broadcasting Schedule
http://www.itu.int/ITU-R/go/hfbs/en | Conferences Publications
http://www.itu.int/ITU-R/go/conferences-publications/en | WRC
http://www.itu.int/ITU-R/go/conferences-publications-wrc/en |
RRC
http://www.itu.int/ITU-R/go/conferences-publications-rrc/en | ITU-R Questions
http://www.itu.int/ITU-R/go/questions/en | ITU-R Questions - SG 1
http://www.itu.int/ITU-R/go/que-rsg1/en |
ITU-R Questions - SG 3
http://www.itu.int/ITU-R/go/que-rsg3/en | ITU-R Questions - SG 4
http://www.itu.int/ITU-R/go/que-rsg4/en | ITU-R Questions - SG 5
http://www.itu.int/ITU-R/go/que-rsg5/en |
ITU-R Questions - SG 6
http://www.itu.int/ITU-R/go/que-rsg6/en | ITU-R Questions - SG 7
http://www.itu.int/ITU-R/go/que-rsg7/en | ITU-R Resolutions
http://www.itu.int/ITU-R/go/resolutions/en |
Service Publications
http://www.itu.int/ITU-R/go/service-publications/en | Maritime Publications
http://www.itu.int/ITU-R/go/maritime-publications/en | Maritime Manual - Manual for Use by the Maritime Mobile and Maritime Mobile-Satellite Services
http://www.itu.int/ITU-R/go/manual-maritime/en |
List IV - List of Coast Stations
http://www.itu.int/ITU-R/go/listiv/en | List V - List of Ship Stations and Maritime Mobile Service Identity Assignments
http://www.itu.int/ITU-R/go/listv/en | List VI - List of Radiodetermination and Special Service Stations
http://www.itu.int/ITU-R/go/listvi/en |
List VII A - List of Call Signs and Numerical Identities of Stations Used by the Maritime Mobile and Maritime Mobile-Satellite Services
http://www.itu.int/ITU-R/go/listviia/en | General Publications
http://www.itu.int/ITU-R/go/general-publications/en | BR IFIC (Terrestrial)
http://www.itu.int/ITU-R/go/terrestrial-brific/en |
List VIII - List of International Monitoring Stations
http://www.itu.int/ITU-R/go/listviii/en | List VIII A - List of Stations in the Space Radiocommunication Services and in the Radio Astronomy Service
http://www.itu.int/ITU-R/go/listviiia/en | ITU-R Recommendations
http://www.itu.int/ITU-R/go/recommendations/en |
ITU-R Recommendations - Approval
http://www.itu.int/ITU-R/go/rec-approval/en | ITU-R Recommendations - Search
http://www.itu.int/ITU-R/go/rec-search/en | ITU-R Recommendations - Status
http://www.itu.int/ITU-R/go/rec-status/en |
Recommendations - ITU-R BO Series
http://www.itu.int/ITU-R/go/rec-bo/en | Recommendations - ITU-R BR Series
http://www.itu.int/ITU-R/go/rec-br/en | Recommendations - ITU-R BS Series
http://www.itu.int/ITU-R/go/rec-bs/en |
Recommendations - ITU-R BT Series
http://www.itu.int/ITU-R/go/rec-bt/en | Recommendations - ITU-R F Series
http://www.itu.int/ITU-R/go/rec-f/en | Recommendations - ITU-R M Series
http://www.itu.int/ITU-R/go/rec-m/en |
Recommendations - ITU-R P Series
http://www.itu.int/ITU-R/go/rec-p/en | Recommendations - ITU-R RA Series
http://www.itu.int/ITU-R/go/rec-ra/en | Recommendations - ITU-R RS Series
http://www.itu.int/ITU-R/go/rec-rs/en |
Recommendations - ITU-R S Series
http://www.itu.int/ITU-R/go/rec-s/en | Recommendations - ITU-R SA Series
http://www.itu.int/ITU-R/go/rec-sa/en | Recommendations - ITU-R SF Series
http://www.itu.int/ITU-R/go/rec-sf/en |
Recommendations - ITU-R SM Series
http://www.itu.int/ITU-R/go/rec-sm/en | Recommendations - ITU-R SNG Series
http://www.itu.int/ITU-R/go/rec-sng/en | Recommendations - ITU-R TF Series
http://www.itu.int/ITU-R/go/rec-tf/en |
Recommendations - ITU-R V Series
http://www.itu.int/ITU-R/go/rec-v/en | ITU-R Reports
http://www.itu.int/ITU-R/go/reports/en | Reports - ITU-R BO Series
http://www.itu.int/ITU-R/go/rep-bo/en |
Reports - ITU-R BR Series
http://www.itu.int/ITU-R/go/rep-br/en | Reports - ITU-R BS Series
http://www.itu.int/ITU-R/go/rep-bs/en | Reports - ITU-R BT Series
http://www.itu.int/ITU-R/go/rep-bt/en |
Reports - ITU-R F Series
http://www.itu.int/ITU-R/go/rep-f/en | Reports - ITU-R M Series
http://www.itu.int/ITU-R/go/rep-m/en | Reports - ITU-R P Series
http://www.itu.int/ITU-R/go/rep-p/en |
Reports - ITU-R RA Series
http://www.itu.int/ITU-R/go/rep-ra/en | Reports - ITU-R RS Series
http://www.itu.int/ITU-R/go/rep-rs/en | Reports - ITU-R S Series
http://www.itu.int/ITU-R/go/rep-s/en |
Reports - ITU-R SA Series
http://www.itu.int/ITU-R/go/rep-sa/en | Reports - ITU-R SF Series
http://www.itu.int/ITU-R/go/rep-sf/en | Reports - ITU-R SM Series
http://www.itu.int/ITU-R/go/rep-sm/en |
Handbooks
http://www.itu.int/ITU-R/go/handbooks/en | ITU-R Opinions
http://www.itu.int/ITU-R/go/opinions/en | Software and Databases
http://www.itu.int/ITU-R/go/software/en |
GLobal Administration Data System (GLAD)
http://www.itu.int/ITU-R/go/glad/en | ITU Digitized World Map (IDWM)
http://www.itu.int/ITU-R/go/idwm/en | Study Groups
http://www.itu.int/ITU-R/go/rsg/en |
SG 1 - Study Group 1 (SG 1) - Spectrum management
http://www.itu.int/ITU-R/go/rsg1/en | WP 1A - Working Party 1A (WP 1A) - Spectrum engineering techniques
http://www.itu.int/ITU-R/go/rwp1a/en | WP 1B - Working Party 1B (WP 1B) - Spectrum management methodologies and economic strategies
http://www.itu.int/ITU-R/go/rwp1b/en |
WP 1C - Working Party 1C (WP 1C) - Spectrum monitoring
http://www.itu.int/ITU-R/go/rwp1c/en | TG 1/8 - Task Group 1/8 (TG 1/8) - Compatibility between ultra-wideband devices (UWB) and radiocommunication services
http://www.itu.int/ITU-R/go/rtg1-8/en | HDB NSM - HDB NSM - Archives
http://www.itu.int/ITU-R/go/rhdb1-archives/en |
HDB CAT - HDB CAT - Archives
http://www.itu.int/ITU-R/go/rhdb2-archives/en | SG 3 - Study Group 3 (SG 3) - Radiowave propagation
http://www.itu.int/ITU-R/go/rsg3/en | WP 3J - Working Party 3J (WP 3J) - Propagation fundamentals
http://www.itu.int/ITU-R/go/rwp3j/en |
WP 3K - Working Party 3K (WP 3K) - Point-to-area propagation
http://www.itu.int/ITU-R/go/rwp3k/en | WP 3L - Working Party 3L (WP 3L) - Ionospheric propagation and radio noise
http://www.itu.int/ITU-R/go/rwp3l/en | WP 3M - Working Party 3M (WP 3M) - Point-to-point and Earth-space propagation
http://www.itu.int/ITU-R/go/rwp3m/en |
SG 4 - Study Group 4 (SG 4) - Satellite services
http://www.itu.int/ITU-R/go/rsg4/en | WP 4A - Working Party 4A (WP 4A) - Efficient orbit/spectrum utilization for FSS and BSS
http://www.itu.int/ITU-R/go/rwp4a/en | WP 4B - Working Party 4B (WP 4B) - Systems, air interfaces, performance and availability objectives for FSS, BSS and MSS, including IP-based applications and satellite news gathering
http://www.itu.int/ITU-R/go/rwp4b/en |
WP 4C - Working Party 4C (WP 4C) - Efficient orbit/spectrum utilization for MSS and RDSS *
http://www.itu.int/ITU-R/go/rwp4c/en | WP 4-9S - Working Party 4-9S (WP 4-9S) - Frequency sharing, between the fixed-satellite service and the fixed service
http://www.itu.int/ITU-R/go/rjwp4-9s/en | SG 5 - Study Group 5 (SG 5) - Terrestrial services
http://www.itu.int/ITU-R/go/rsg5/en |
WP 5A - Working Party 5A (WP 5A) - Land mobile service above 30 MHz*(excluding IMT); wireless access in the fixed service; amateur and amateur-satellite services
http://www.itu.int/ITU-R/go/rwp5a/en | WP 5B - Working Party 5B (WP 5B) - Maritime mobile service including Global Maritime Distress and Safety System (GMDSS); aeronautical mobile service and radiodetermination service
http://www.itu.int/ITU-R/go/rwp5b/en | WP 5C - Working Party 5C (WP 5C) - Fixed wireless systems; HF and other systems below 30 MHz in the fixed and land mobile services
http://www.itu.int/ITU-R/go/rwp5c/en |
WP 5D - Working Party 5D (WP 5D) - IMT Systems
http://www.itu.int/ITU-R/go/rwp5d/en | JTG 5-6 - Joint Task Group 5-6 - Studies on the use of the band 790-862 MHz by mobile applications and by other services
http://www.itu.int/ITU-R/go/rjtg5-6/en | SG 6 - Study Group 6 (SG 6) - Broadcasting service
http://www.itu.int/ITU-R/go/rsg6/en |
WP 6A - Working Party 6A (WP 6A) - Terrestrial broadcasting delivery
http://www.itu.int/ITU-R/go/rwp6a07/en | WP 6B - Working Party 6B (WP 6B) - Broadcast service assembly and access
http://www.itu.int/ITU-R/go/rwp6b07/en | WP 6C - Working Party 6C (WP 6C) - Programme production and quality assessment
http://www.itu.int/ITU-R/go/rwp6c/en |
WP 6A - Working Party 6A (WP 6A) - Programme assembling and formatting
http://www.itu.int/ITU-R/go/rwp6a/en | WP 6B - Working Party 6B (WP 6B) - Production, processing, archiving and exchange of baseband signals for broadcasting
http://www.itu.int/ITU-R/go/rwp6b/en | WP 6D - Working Party 6D (WP 6D) - Broadcasting delivery, excluding the RF system and spectrum aspects of the BSS
http://www.itu.int/ITU-R/go/rwp6d07/en |
WP 6E - Working Party 6E (WP 6E) - Terrestrial delivery
http://www.itu.int/ITU-R/go/rwp6e/en | WP 6G - Working Party 6G (WP 6G) - Generation of broadcasting services, including technologies for content signal creation, production and quality control
http://www.itu.int/ITU-R/go/rwp6g/en | WP 6J - Working Party 6J (WP 6J) - Programme production, archiving and international exchange
http://www.itu.int/ITU-R/go/rwp6j/en |
WP 6M - Working Party 6M (WP 6M) - Interactive and multimedia broadcasting
http://www.itu.int/ITU-R/go/rwp6m/en | WP 6P - Working Party 6P (WP 6P) - Content production/post-production
http://www.itu.int/ITU-R/go/rwp6p/en | WP 6Q - Working Party 6Q (WP 6Q) - Performance assessment and quality control
http://www.itu.int/ITU-R/go/rwp6q/en |
WP 6S - Working Party 6S (WP 6S) - Satellite delivery
http://www.itu.int/ITU-R/go/rwp6s/en | WP 6X - Working Party 6X (WP 6X) - Access to broadcasting services, including converged services, multimedia, interactivity and service requirements
http://www.itu.int/ITU-R/go/rwp6x/en | TG 6/9 - Task Group 6/9 (TG 6/9) - Large screen digital imagery
http://www.itu.int/ITU-R/go/rtg6-9/en |
JTG 6-8-9 - Joint Task Group 6-8-9 (JTG 6-8-9) - The use of the band 2 500-2 690 MHz by space services
http://www.itu.int/ITU-R/go/rjtg6-8-9/en | SG 7 - Study Group 7 (SG 7) - Science services
http://www.itu.int/ITU-R/go/rsg7/en | WP 7A - Working Party 7A (WP 7A) - Time signals and frequency standard emissions
http://www.itu.int/ITU-R/go/rwp7a/en |
WP 7B - Working Party 7B (WP 7B) - Space radiocommunication applications
http://www.itu.int/ITU-R/go/rwp7b/en | WP 7C - Working Party 7C (WP 7C) - Remote sensing systems
http://www.itu.int/ITU-R/go/rwp7c/en | WP 7D - Working Party 7D (WP 7D) - Radio astronomy
http://www.itu.int/ITU-R/go/rwp7d/en |
SG 8 - Study Group 8 (SG 8) - Mobile, radiodetermination, amateur and related satellite services
http://www.itu.int/ITU-R/go/rsg8/en | WP 8A - Working Party 8A (WP 8A) - Land mobile service excluding IMT-2000; amateur and amateur-satellite service
http://www.itu.int/ITU-R/go/rwp8a/en | WP 8B - Working Party 8B (WP 8B) - Maritime mobile service including Global Maritime Distress and Safety System (GMDSS); aeronautical mobile service and radiodetermination service
http://www.itu.int/ITU-R/go/rwp8b/en |
WP 8D - Working Party 8D (WP 8D) - All mobile-satellite services and radiodetermination-satellite service
http://www.itu.int/ITU-R/go/rwp8d/en | WP 8F - Working Party 8F (WP 8F) - IMT-2000 and systems beyond IMT-2000
http://www.itu.int/ITU-R/go/rwp8f/en | JRG 8A-9B - Joint Rapporteur Group 8A-9B (JRG 8A-9B) - Wireless access
http://www.itu.int/ITU-R/go/rjrg8a-9b/en |
SG 9 - Study Group 9 (SG 9) - Fixed service
http://www.itu.int/ITU-R/go/rsg9/en | WP 9A - Working Party 9A (WP 9A) - Performance and availability, interference objectives and analysis, effects of propagation and terminology
http://www.itu.int/ITU-R/go/rwp9a/en | WP 9B - Working Party 9B (WP 9B) - Radio-frequency channel arrangements, radio system characteristics, interconnection, maintenance and various applications
http://www.itu.int/ITU-R/go/rwp9b/en |
WP 9C - Working Party 9C (WP 9C) - Systems below 30 MHz (HF and others)
http://www.itu.int/ITU-R/go/rwp9c/en | WP 9D - Working Party 9D (WP 9D) - Sharing with other services (except for the fixed-satellite service)
http://www.itu.int/ITU-R/go/rwp9d/en | Coordination Committee for Vocabulary (CCV)
http://www.itu.int/ITU-R/go/rccv/en |
Chairmen and Vice-Chairmen Meetings
http://www.itu.int/ITU-R/go/rcvc/en | Conference Preparatory Meeting (CPM)
http://www.itu.int/ITU-R/go/rcpm/en | Special Committee (SC)
http://www.itu.int/ITU-R/go/rsc/en |
ITU Patent Statement and Licensing Declaration Information
http://www.itu.int/ITU-R/go/patents/en | Space Services
http://www.itu.int/ITU-R/go/space/en | Terrestrial Services
http://www.itu.int/ITU-R/go/terrestrial/en |
Broadcasting Services Division (BCD)
http://www.itu.int/ITU-R/go/rtsd-bcd/en | Fixed and Mobile Services Division (FMD)
http://www.itu.int/ITU-R/go/rtsd-fmd/en | Fixed and Mobile Services
http://www.itu.int/ITU-R/go/fixed-mobile/en |
Terrestrial Publication and Registration Division (TPR)
http://www.itu.int/ITU-R/go/rtsd-tpr/en | International monitoring
http://www.itu.int/ITU-R/go/terrestrial-monitoring/en | SiteMap
http://www.itu.int/ITU-R/go/sitemap/en |
