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UIT-R SG04

Services par satellite

Resultats:49 documents
Contributions  [ Source: WP 4A ]   Documents / Contributions
 
Numéro 
Date Source Titre Questions
[ 201 ]  
 
2011-09-28 Chairman, WP 4A   Executive Report of the seventh and eighth meetings of Working Party 4A (Geneva, 5-11 May 2011 and 21-28 September 2011)     N/A  
[ 200 ]  
(Rev.1) 
2011-09-28 WP 4A   Draft new Recommendation ITU-R BO.[BSS_ANT_PATT] - Reference receive earth station antenna pattern for the broadcasting-satellite service in the band 21.4-22 GHz in Regions 1 and 3     280/4  
[ 199 ]  
(Rev.1) 
2011-09-28 WP 4A   Draft new Recommendation ITU-R S.[ISS-NON-GSO] - Protection criteria and interference assessment methods for non-GSO inter-satellite links in the 23.183-23.377 GHz band with respect to the space research service     N/A  
[ 198 ]  
(Rev.1) 
2011-09-28 WP 4A   Draft new Recommendation ITU-R BO.[PFD_TERRESTRIAL] - Power flux-density value required for the protection of receiving earth stations in the broadcasting-satellite service in Regions 1 and 3 from emissions by a station in the fixed and/or mobile services in the band 21.4-22 GHz     283/4  
[ 197 ]  
(Rev.1) 
2011-09-28 WP 4A   Draft new Recommendation ITU-R S.[ESOMP] - Technical and operational requirements for GSOFSS earth stations on mobile platforms in bands from 17.3 to 30.0 GHz     N/A  
[ 196 ]  
 
2011-09-28 WP 4A   Suppression of Recommendation ITU-R S.725 - Technical characteristics for very small aperture terminals     N/A  
[ 195 ]  
(Rev.1) 
2011-09-28 WP 4A   Editorial revision of Recommendation ITU-R S.1527 - Procedure for the identification of non-geostationary-satellite orbit satellites causing interference into an operating geostationary-satellite orbit earth station     N/A  
[ 194 ]  
 
2011-09-28 WP 4A   Proposed suppression of Opinion ITU-R 51     N/A  
[ 169 ]  
(Rev.1) 
2011-05-30 WP 4A   Draft revision of Report ITU-R BO.2071 - System parameters of BSS between 17.3 GHz and 42.5 GHz and associated feeder links     N/A  
[ 168 ]  
 
2011-05-23 WP 4A   Draft revision of Recommendation ITU-R BO.1776 - Reference power flux-density for the broadcasting-satellite service in the band 21.4-22.0 GHz in Regions 1 and 3     N/A  
[ 167 ]  
 
2011-05-23 WP 4A   Draft revision of Recommendation ITU-R SF.675-3 - Calculation of the maximum power density (averaged over 4 kHz) of an angle modulated carrier     N/A  
[ 166 ]  
 
2011-05-23 WP 4A   Draft revision of Recommendation ITU-R BO.1659 - Mitigation techniques for rain attenuation for broadcasting-satellite service systems in frequency bands between 17.3 GHz and 42.5 GHz     N/A  
[ 144 ]  
 
2010-07-16 Chairman, WP 4A   Executive report of the fifth and sixth meetings of Working Party 4A (Bangalore, India 24 March - 1 April and Geneva 7-15 July 2010)     N/A  
[ 140 ]  
 
2010-07-15 WP 4A   Proposed suppression of three former Working Party 6S Questions     N/A  
[ 138 ]  
 
2010-07-15 WP 4A   Draft new Report ITU-R S.[BWA-FSS] - Studies on compatibility of broadband wireless access (BWA) systems and fixed-satellite service (FSS) networks in the 3 400-4 200 MHz band     N/A  
[ 124 ]  
 
2010-04-29 WP 4A   Draft new Report ITU-R S.[GUIDE-PLAN] - Guidelines that may be used by administrations in the design of their systems for assessing the impact of rain attenuation on the carrier to noise plus interference ratios of the FSS Plan allotments     236/4  
[ 123 ]  
 
2010-04-29 WP 4A   Draft New Report ITU-R S.[MAIN-LOBE] - Methodology on the modelling of earth station antenna gain in the region of the antenna main-lobe and the transition region between the minimum angle of the reference antenna pattern and the main-lobe     N/A  
[ 122 ]  
 
2010-04-13 WP 4A   Draft revision of Recommendation ITU-R S.1003-1 - Environmental protection of the geostationary-satellite orbit     N/A  
[ 110 ]  
 
2009-09-18 Chairman, WP 4A   Executive Report of the meetings of Working Party 4A since October 2008 (Geneva, 27 April - 5 May and 9 - 18 September 2009)     N/A  
[ 109 ]  
(Rev.1) 
2009-09-18 WP 4A   Draft revision of Recommendation ITU-R S.1001-1 - Use of systems in the fixed-satellite service in the event of natural disasters and similar emergencies for warning and relief operations     N/A  
[ 108 ]  
 
2009-09-18 WP 4A   Draft new Report ITU-R S.[REP-1001] - Use and examples of systems in the fixed-satellite service in the event of natural disasters and similar emergencies for warning and relief operations     N/A  
[ 107 ]  
(Rev.1) 
2009-09-18 WP 4A   Draft new Recommendation ITU-R S.[VEHICLE_E/S] - Methodologies to estimate the off-axis e.i.r.p. levels and to assess the interference towards adjacent satellites resulting from pointing errors of vehicle-mounted earth stations in the 14 GHz frequency band     208/4  
[ 106 ]  
 
2009-09-18 WP 4A   Draft new Report ITU-R S.[ADAP_ARRAY] - An interference reduction technique by adaptive-array earth station antennas for sharing between the fixed-satellite (FSS) and fixed/mobile services     N/A  
[ 105 ]  
(Rev.1-2) 
2009-09-18 WP 4A   Draft new Recommendation ITU-R S.[IMT-PFD] - Methodologies for determining whether an IMT station at a given location operating in the band 3 400-3 600 MHz would transmit without exceeding the power flux-density limits in Nos. 5.430A, 5.432A, 5.432B and 5.433A of the Radio Regulations     N/A  
[ 104 ]  
(Rev.1) 
2009-09-18 WP 4A   Draft revision of Recommendation ITU-R S.465-5 - Reference earth-station radiation pattern for use in coordination and interference assessment in the frequency range 2 to about 30 GHz     N/A  
[ 103 ]  
 
2009-09-18 WP 4A   Suppression of Recommendation ITU-R S.727-2 - Cross-polarization isolation from very small aperture terminals (VSATs)     N/A  
[ 102 ]  
(Rev.1) 
2009-09-18 WP 4A   Draft new Recommendation ITU-R S.[CSREF-PATT] - Alternative reference earth-station radiation pattern for antennas used with satellites in the geostationary-satellite orbit for use in coordination and/or interference assessment in the frequency range from 2 to 31 GHz     N/A  
[ 83 ]  
 
2009-06-09 WP 4A   Draft revision of Recommendation ITU-R S.1673 - Methodologies for the calculation of the worst-case interference levels from a non-geostationary HEO-type fixed-satellite service system into geostationary fixed-satellite service satellite networks operating in the 10 to 30 GHz frequency bands     N/A  
[ 64 ]  
 
2008-10-16 Chairman, WP 4A   Executive Report of the second meeting of Working Party 4A during the 2007-2011 study period     N/A  
[ 61 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 3/6]/4 - Digital broadcasting of multiple services and programmes in the broadcasting-satellite service     3/6  
[ 60 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 21/6]/4 - Characteristics of receiving systems in the broadcasting-satellite service (sound and television)     21/6  
[ 59 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 22-1/6]/4 - Satellite orbits and space station technolgy for the broadcasting-satellite service (sound and television)     22-1/6  
[ 58 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 23/6]/4 - Characteristics of systems in the broadcasting-satellite service (sound) for individual reception by means of portable and vehicular receivers     23/6  
[ 57 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [Question ITU-R 26-1/6]/4 - Interactive satellite broadcasting systems (television, sound and data)     26-1/6  
[ 56 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 61/6]/4 - Spectrum management issues related to the introduction of the broadcasting-satellite service (sound) in the frequency range 1-3 GHz     61/6  
[ 55 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 71/6]/4 - Sharing studies between high-definition television in the broadcasting-satellite service and other services     71/6  
[ 54 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 57/6]/4 - Frequency sharing issues related to the introduction of the broadcasting-satellite service (sound) in the frequency range 1-3 GHz     57/6  
[ 53 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 72/6]/4 - Digital techniques in the broadcasting-satellite service (sound and television)     72/6  
[ 52 ]  
(Rev.1) 
2008-10-15 WP 4A   Draft revision of Recommendation ITU-R S.465-5 - Reference earth-station radiation pattern for use in coordination and interference assessment in the frequency range 2 to about 30 GHz     N/A  
[ 51 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 73-1/6]/4 - Receiving earth station antennas for the broadcasting-satellite service     73-1/6  
[ 50 ]  
(Rev.1) 
2008-10-15 WP 4A   Draft new Recommendation ITU-R S.[CSREF-PATT] - Reference earth-station radiation pattern for antennas used with closely spaced satellites in the geostationary-satellite orbit for use in coordination and interference assessment in the frequency range from 2 to 31 GHz     N/A  
[ 49 ]  
(Rev.1) 
2008-10-15 WP 4A   Draft new Recommendation ITU-R S.[XP-VSAT] - Cross-polarization reference gain pattern for linearly polarized very small aperture terminals (VSATs) for frequencies in the range 2 to 31 GHz     N/A  
[ 48 ]  
 
2008-10-15 WP 4A   Draft new Question ITU-R [QUESTION ITU-R 76/6]/4 - Satellite broadcasting of high-definition television     76/6  
[ 47 ]  
 
2008-10-15 WP 4A   Draft revision of Question ITU-R 245/4 - Out-of-band and spurious emission limits     245/4  
[ 46 ]  
 
2008-10-15 WP 4A   Draft revision of Question ITU-R 235/4 - Use of operational facilities to meet power-flux-density limitation under Article 21 of the Radio Regulations     235/4  
[ 22 ]  
 
2008-04-16 Interim Chairman, WP 4A   Executive Report of Working Party 4A activities since September 2006     N/A  
[ 20 ]  
 
2008-04-16 WP 4A   Proposed liaison statement to relevant Working Parties of Study Group 5 - Methodology for determining whether a transmit IMT station meets the PFD limit in provisions of the radio regulations     N/A  
[ 15 ]  
 
2008-04-15 WP 4A   Draft new Question ITU-R [GSO]/4 - Technical methods for improving the shared use of the geostationary-satellite orbit     N/A  
[ 14 ]  
 
2008-04-15 Interim Chairman, WP 4A   Proposed suppression of 3 Study Group 4 Questions     N/A  
Resultats:49 documents
 
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