Union Internationale des Télécommunications   UIT
English  Español
 
Plan du site Contactez-nous Copie Imprimable
  Page d'accueil : UIT-R : SG04 : Contributions  Ajoutés récemment -  Recherche de documents de réunion
   
UIT-R SG04  C 

UIT-R SG04

Services par satellite

Resultats:205 documents
Résultats :  Précédent -  1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9  - Suivant Next
Contributions  Documents / Contributions
 
Numéro 
Date Source Titre Questions
[ 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  
[ 45 ]  
 
2008-10-14 SG 7   Liaison statement from Study Group 7 to Study Group 4 (and copy to SGs 1, 3, 5, 6 and for information to RAG) - Inter-working of Study Group 4 with other ITU-R Study Groups for issues involving Working Parties of more than one Study Group     N/A  
[ 44 ]  
 
2008-10-14 SG 7   Liaison statement from Study Group 7 to Study Group 4 (copy to Working Party 4A) - Applicability of Recommendation ITU-R S.1432 to the meteorological-satellite service in the frequency bands 18.1-18.4 GHz in Regions 1 and 3 18.0-18.3 GHz in Region 2     N/A  
[ 43 ]  
 
2008-10-14 WP 4C   Draft new Recommendation ITU-R M.[1088_NEW] - Characteristics and protection criteria for receiving earth stations in the redionavigation-satellite service (space-to-Earth) operating in the band 1 215-1 300 MHz     236-2/8, 217-2/8  
[ 42 ]  
 
2008-10-14 WP 4C   Draft new Question ITU-R [DIGMSS]/4 - Performance objectives for digital mobile-satellite services     112/8  
[ 41 ]  
(Rev.1) 
2008-10-14 WP 4C   Draft new Recommendation ITU-R M.[1317_NEW] - Description of systems and netwoks in the radionavigation-satellite service (space-to-Earth and space-to-space) and technical characteristics of transmitting space stations operating in the bands 1 164-1 215 MHz, 1 215-1 300 MHz, and 1 559-1 610 MHz     236-2/8, 217-2/8  
[ 40 ]  
 
2008-10-14 WP 4C   Draft new Recommendation ITU-R M.[1477_NEW] - Characteristics and protection criteria for receiving earth stations in the radionavigation-satellite service (space-to-Earth) and receivers in the aeronautical radionavigation service operating in the band 1 559-1 610 MHz     236-2/8, 217-2/8  
[ 39 ]  
 
2008-10-14 WP4C   Draft new Recommendation ITU-R M.[1479_NEW] - Characteristics, performance requirements and protection criteria for receiving stations of the radionavigation-satellite service (space-to-space) operating in the frequency bands 1 164-1 215 MHz, 1 215-1 300 MHz and 1 559-1 610 MHz     236-2/8, 217-2/8  
[ 38 ]  
 
2008-10-14 WP 4C   Draft new Recommendation ITU-R M.[CHAR-RX3] - Characteristics and protection criteria for receiving earth stations in the radionavigation-satellite service (space-to-Earth) operating in the band 1 164-1 215 MHz     236-2/8, 217-2/8  
[ 37 ]  
 
2008-10-14 WP 4C   Draft new Recommendation ITU-R M.[RNSS_ORG] - Guidance on ITU-R Recommendations ralated to systems and networks in the radionavigation-satellite service operating in the frequency bands 1 164-1 215 MHz, 1 215-1 300 MHz, 1 559-1 610 MHz, 5 000-5 010 MHz and 5 010-5 030 MHz     236-2/8, 217-2/8  
[ 36 ]  
 
2008-10-14 WP 4B   Draft new Question ITU-R [MSS_AVAL]/4 - Availability of digital paths in mobile-satellite services     85-1/8  
[ 35 ]  
 
2008-10-14 WP 4B   Draft new Question ITU-R [NGN]/4 - Performance objectives of digital links in the fixed-satellite and mobile-satellite services forming elements of the Next Generation Network     N/A  
[ 34 ]  
 
2008-10-09 Syrian Arab Republic   Implementation of Resolutions ITU-R 1-5 and 5-5 and other issues     N/A  
[ 33 ]  
 
2008-09-16 Director, BR   Workshop on the efficient use of spectrum/orbit resource     N/A  
[ 32 ]  
 
2008-08-28 Chairmen, Study Groups 4 and 5   Future updating of the ITU-R Recommendations developed by the former Working Parties 8D and 8F     N/A  
[ 31 ]  
 
2008-07-24 SG 1   Reply to liaison statement from Study Group 4 - Inter-Working of Study Group 4 with other ITU-R Study Groups for issues involving Working Parties of more than one Study Group     N/A  
Resultats:205 documents
Résultats :  Précédent -  1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9  - Suivant Next
 
Téléchargement de multiples documents: Cocher les cases correspondant aux documents sélectionnés, puis appuyer sur "Télécharger"
   
 
Préférences utilisateur: 
Téléchargement de multiples documents: Formats et langues à prendre en compte (si disponibles):
Pages de navigation HTML  
Formats  + Autres formats
Langues (maximum 2)  + Multilingue 
(E: Anglais - F: Français - S: Espagnol - A: Arabe - C: Chinois - R: Russe)

 

Début de page -  Commentaires -  Contactez-nous -  Droits d'auteur © UIT 2008 Tous droits réservés
Contact pour cette page :  Coordinateur du Web UIT-R
Mis à jour le : 2012-02-21