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ITU-R R23-WP4A

Efficient Orbit/Spectrum Utilization for FSS and BSS

Results:1088 total items.
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Contributions  Documents / Contributions
 
Number 
Title Source AI/Question
Date
[ 888 ]  
 
Views on WRC-27 agenda item 1.6     Global Satellite Operators' Association GSOA   AI1.6   2026-04-16
[ 887 ]  
 
Proposal for Chapter 8 of the ITU-R Handbook on Satellite Communications and Technologies     Telespazio S.p.A.     2026-04-16
[ 886 ]  
 
Consideration of the WRC-23 instruction to ITU-R - Possible measures to prevent the repeated uses of the same satellite or different satellites to bring back into use the same frequency assignments of a satellite network for a short period of time     Korea (Rep. of) , Montenegro   AI7   2026-04-16
[ 885 ]  
 
Working document relating to WRC-27 agenda item 1.3     European Conference of Postal and Telecommunications Administrations   AI1.3   2026-04-16
[ 884 ]  
 
Working document towards candidate topic under WRC-27 agenda item 7 - Assessing the potential advantage to define coordination arc for some frequency bands above 3.4 GHz     European Conference of Postal and Telecommunications Administrations   AI7   2026-04-15
[ 883 ]  
 
Proposal on draft note to the director of the ITU BR regarding orbital tolerances for satellite systems not subject to Resolution 8 (WRC-23)     Montenegro     2026-04-15
[ 882 ]  
 
Proposal on topic under WRC-27 agenda item 7 - Potential regulatory improvements related to the application of Radio Regulations (RR) No. 4.4 to stations in space services     Bosnia and Herzegovina , Croatia , France , Hungary , Montenegro , North Macedonia , Serbia   AI7   2026-04-14
[ 881 ]  
 
Proposal on topic under WRC-27 agenda item 7 - Capability of a space station to satisfy the requirements for bringing into use of frequency assignments specified in the provisions of Radio Regulations Nos. 11.44B, 11.44C, 11.44D and 11.44E     Bosnia and Herzegovina , Croatia , France , Hungary , Korea (Rep. of) , Montenegro , North Macedonia , Serbia   AI7   2026-04-14
[ 880 ]  
 
Working document towards draft CPM text on WRC-27 agenda item 7 - Possible regulatory measures to prevent the repeated uses of the same satellite or different satellites to bring back into use the same frequency assignments of a satellite network for a short period of time     Bosnia and Herzegovina , Croatia , Korea (Rep. of) , Montenegro , North Macedonia , Serbia   AI7   2026-04-14
[ 879 ]  
 
Proposal to resolve deficiencies in notification procedure and related difficulties and inconsistencies encountered in the application of the Radio Regulations - Enhancing the responsibility of the notifying administration for space services     Montenegro   AI7   2026-04-14
[ 878 ]  
 
Consideration of topics under WRC-27 agenda item 7     European Conference of Postal and Telecommunications Administrations   AI7   2026-04-14
[ 877 ]  
 
Updates to the supporting material for draft CPM text on WRC-27 agenda item 1.1 - Use of frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space) by aeronautical and maritime earth stations in motion in the fixed-satellite service     Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science (IUCAF)   AI1.1   2026-04-13
[ 876 ]  
 
Updates to the working document towards draft CPM text on WRC-27 agenda item 1.1     Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science (IUCAF)   AI1.1   2026-04-13
[ 875 ]  
 
Updates to the working document relating to WRC-27 agenda item 1.3 - Studies relating to the use of the frequency band 51.4-52.4 GHz to enable its use by gateway earth stations transmitting to non-geostationary-satellite orbit systems in the fixed-satellite service (Earth-to-space)     Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science (IUCAF)   AI1.3   2026-04-13
[ 874 ]  
 
Updates to the working document towards draft CPM text for WRC-27 agenda item 1.3     Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science (IUCAF)   AI1.3   2026-04-13
[ 873 ]  
 
Working document towards a preliminary draft new Recommendation ITU-R S.[NON-GSO-MODELLING] - Modelling and simulation of triangular array patterns in non-GSO FSS systems for sharing and compatibility studies     Japan     2026-04-10
[ 872 ]  
 
Elements of information to address studies for WRC-27 agenda item 1.5 - Information on non-GSO FSS/MSS systems     Japan   AI1.5   2026-04-10
[ 871 ]  
 
Working document related to a preliminary draft new Recommendation ITU-R S.[ESIM-NCMC] - The functionalities and implementation of a network control and monitoring centre for earth stations in motion     Japan     2026-04-10
[ 870 ]  
 
Characteristics of GSO FSS networks to be considered in the technical studies on the epfd limits in Article 22 of Radio Regulations     Japan     2026-04-10
[ 869 ]  
 
Proposed updates to elements for a working document towards a preliminary draft new Report ITU-R S.[IOS SPEC NEEDS]     Japan     2026-04-10
[ 868 ]  
 
Proposed updates to the working document towards a preliminary draft ITU-R Handbook on best practices for the sustainable use of frequencies and associated non-GSO orbits by space radiocommunication services     Japan     2026-04-10
[ 867 ]  
 
Proposed revision of working document towards a draft new Handbook on Satellite Communications and Technologies - Update to section 4.7.1     Japan     2026-04-10
[ 866 ]  
 
Draft revision of Recommendation ITU-R BO.1443-3 - Reference BSS earth station antenna patterns for use in interference assessment involving non-GSO satellites in frequency bands covered by RR Appendix 30     Japan   Q280/4, AI1.4   2026-04-10
[ 865 ]  
 
Draft revision of Recommendation ITU-R BO.1900 - Reference receive earth station antenna pattern for the broadcasting-satellite service in the band 21.4-22 GHz in Regions 1 and 3     Japan   Q280/4, AI1.4   2026-04-10
[ 864 ]  
 
Revisions for working document towards draft CPM text for WRC-27 agenda item 1.4     Japan   AI1.4   2026-04-10
[ 863 ]  
 
Revisions for working document on WRC-27 agenda item 1.4     Japan   AI1.4   2026-04-10
[ 862 ]  
 
Elements of draft working document for the Handbook on Satellite Communications and Technologies     Japan     2026-04-10
[ 861 ]  
 
Handbook on Satellite Communications and Technologies - Chapters 5 and 6     AST & Science SpaceMobile     2026-04-10
[ 860 ]  
 
Proposal on topic under WRC-27 agenda item 7 - Unrealistic gain contours of submissions under RR Appendices 30, 30A and 30B     Bosnia and Herzegovina , Croatia , Lithuania , Montenegro , North Macedonia , Serbia   AI7   2026-04-09
[ 859 ]  
 
Proposal on working document towards draft CPM text on WRC-27 agenda item 1.6     Bosnia and Herzegovina , Croatia , Montenegro , North Macedonia , Serbia   AI1.6   2026-04-09
[ 858 ]  
 
Working document towards a preliminary draft new ITU-R Report WRC-27 agenda item 1.1 - Use of frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space) by aeronautical and maritime earth stations in motion in the fixed-satellite service     Committee on Radio Astronomy Frequencies   AI1.1   2026-04-09
[ 857 ]  
 
Flat panel electronically scanned array antennas     Global Satellite Operators' Association GSOA     2026-04-09
[ 856 ]  
 
Maritime safety considerations relating to WRC-27 agenda item 1.5     International Mobile Satellite Organization (IMSO)   AI1.5   2026-04-08
[ 855 ]  
 
Proposed modifications to working document towards preliminary draft revision of Recommendation ITU-R S.673-2 - Terms and definitions relating to space radiocommunications     Kazakhstan     2026-04-01
[ 854 ]  
 
Reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 7 - Use of No. 11.49     Director, BR   AI7   2026-04-01
[ 853 ]  
 
Reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 7 - Use of No. 4.4     Director, BR   AI7   2026-04-01
[ 852 ]  
 
Proposal regarding Chapter 12 of the ITU-R Handbook on Satellite Communications and Technologies     International Organization of Space Communications - INTERSPUTNIK     2026-03-31
[ 851 ]  
 
Liaison statement to working parties 4A, 4C, 5A, 5B, 5C, 5D, 6A, 7B and 7D regarding progress of work - WRC-27 agenda item 1.17     WP 7C   AI1.17   2026-03-26
[ 850 ]  
 
Liaison statement to ITU-R Working Parties 3J, 4A, 4C, 5A, 5B, 5C, 5D, 7A, 7C and 7D - Progress of activities relating to WRC-27 agenda item 1.15     WP 7B   AI1.15   2026-03-26
[ 849 ]  
 
Reply liaison statement to Working Party 4A on WRC-27 agenda item 1.18 - Technical information to support studies under WRC-27 agenda item 1.18 relating to FSS characteristics in certain frequency bands     WP 7D   AI1.18   2026-03-23
[ 848 ]  
 
Liaison statement to Working Parties 4A, 4C, 5A, 5B and 5C regarding progress of work on WRC-27 agenda item 1.18     WP 7C   AI1.18   2026-03-19
[ 847 ]  
 
Liaison statement to Working Parties 4A, 5A, 5B, 5C and 7B regarding progress of the work on WRC-27 agenda item 1.19     WP 7C   AI1.19   2026-03-19
[ 846 ]  
 
Adoption of draft revision of Recommendation ITU-R S.1528 - Satellite antenna radiation patterns for non-geostationary orbit satellite antennas operating in the fixed-satellite service below 30 GHz     Director, BR     2026-03-13
[ 845 ]  
 
Editorial revision of Annex 8 of Document 4A/830 - Working document towards draft CPM text for WRC-27 agenda item 1.4     Chair, WP 4A   AI1.4   2026-03-06
[ 844 ]  
 
Submissions of Notices related to earth stations in motion     Director, BR     2026-03-02
[ 843 ]  
 
Preliminary position on WRC-27 agenda     World Meteorological Organization     2026-02-18
[ 842 ]  
 
Reply liaison statement to Working Party 4A - Coordination between fixed satellite service (FSS) non-GSO (space-to-Earth) earth stations operating in the frequency band 6 700-7 075 MHz and IMT base stations operating in the frequency band 6 425-7 125 MHz     WP 5D     2026-02-13
[ 841 ]  
 
Draft working document for the Handbook on Satellite Communications and Technologies     MEASAT Satellite Systems Sdn. Bhd.     2026-02-12
[ 840 ]  
 
Further information on the use of the Conference Proposal Interface (CPI) for the preparation of examples of regulatory texts for the draft CPM Report to WRC-27     Director, BR     2026-01-27
[ 839 ]  
 
Reply liaison statement on validation of the term "global satellite services (GSS)"     CCT     2026-01-20
Results:1088 total items.
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