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Contributions��
�	Number�	Title	Source	AI/Question	Date
�	[ 57 ] � �	Draft revision of Recommendation ITU-R SF.1601-1 - Methodologies for interference evaluation from the downlink of the fixed service using high altitude platform stations to the uplink of the fixed-satellite service using the geostationary satellites within the band 27.5-28.35 GHz � �	WP 4-9S �	251/4, 218/9 �	2005-05-25
�	[ 56 ] � �	Summary record of SG 4 meeting on 22 October 2004 � �	SG 4, Rapporteurs �	�	2004-11-17
�	[ 55 ] � �	Summary record for the joint meeting of ITU-R Study Groups 4 and 9 (12 October 2004) � �	SGs 4 and 9 �	�	2004-11-12
�	[ 54 ] � �	Summary record for the joint meeting of ITU-R Study Group 4 and 9 (re-issue of summary record of the meeting held in Geneva on 26 April 2002) � �	SG 4 & SG9 �	�	2004-11-03
�	[ 53 ] � �	Final List of Participants - Study Group 4 � �	Director, BR �	�	2004-10-22
�	[ 52 ] � �	List of documents issued (Doc. 4/1 - Doc. 4/52) � �	BR, Study Group Department �	�	2004-10-21
�	[ 51 ] � (Rev.1)�	Draft new Recommendation ITU-R S.[Doc. 4/51] - Guidelines developed in response to the studies requested in Resolution 140 (WRC-03) � �	WP 4A �	�	2004-10-21
�	[ 50 ] � (Rev.1)�	Draft new Recommendation ITU-R S. [Doc.4/50] - Static methodology for calculating epfd(down) to facilitate coordination of very large antennas under RR Nos. 9.7A and 9.7B � �	WP 4A �	�	2004-10-21
�	[ 49 ] � (Rev.1)�	Revision of Recommendation ITU-R S.731 - Reference earth-station cross-polarized radiation pattern for use in frequency coordination and interference assessment in the frequency range from 2 to about 30 GHz � �	WP 4A �	�	2004-10-21
�	[ 48 ] � (Rev.1)�	Draft new Recommendation ITU-R S.[MIN/SEP] [Doc. 4/48] - Methodology to calculate the minimum separation angle at the Earth's surface between a non-geostationary satellite in a HEO "active" arc and a geostationary satellite � �	WP 4A �	241-1/4 �	2004-10-21
�	[ 47 ] � (Rev.1)�	Draft revision of Recommendation ITU-R S.1587 - Technical characteristics of earth stations on board vessels communicating with FSS satellites in the frequency bands 5925-6425 MHz and 14-14.5 GHz which are allocated to the fixed-satellite service � �	WP 4A �	254/4 �	2004-10-21
�	[ 46 ] � (Rev.1)�	Draft new Recommendation ITU-R S.[13.75 GHz] [Doc.4/46] - Methodologies for determining whether an FSS earth station at a given location could transmit in the band 14.75-14 GHz without exceeding the pfd limits in RR 5.502, and guidlines to mitigate excesses � �	WP 4A �	�	2004-10-21
�	[ 45 ] � (Rev.1)�	Draft revision of Recommendation ITU-R S.1503 - Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite system networks with limits contained in Article 22 of the Radio Regulations � �	WP 4A �	�	2004-10-21
�	[ 44 ] � �	Report of the seventeenth and eighteenth meetings of Working Party 4B (Geneva, 21-27 March 2003, 22-29 April 2004 and 4-8 October 2004 � �	Chairman, WP 4B �	�	2004-10-20
�	[ 43 ] � (Rev.1)�	Draft new Recommendation ITU-R S.[TCP-ENH] [Doc.4/43] - Performance enhancements of transmission control protocol (TCP) over satellite networks � �	WP 4B �	�	2004-10-18
�	[ 42 ] � (Rev.1)�	Draft new Recommendation ITU-R SNG[uap][Doc.4/42] - SNG carriers universal access procedures � �	WP 4B �	�	2004-10-18
�	[ 41 ] � �	Proposed suppression of Study Group 4 Questions � �	WP 4B �	�	2004-10-18
�	[ 40 ] � (Rev.1)+Corr.1�	Draft new Recommendation ITU-R S.[Doc.4/40] - Technical characteristics of air interfaces for global broadband satellite systems � �	WP 4B �	269/4 �	2004-10-18
�	[ 39 ] � (Rev.1)�	Draft revision of Recommendation ITU-R S.579-5 - Availability objectives for hypothetical reference circuits and hypothetical reference digital paths when used for telephony using pulse code modulation, or as part of an integrated services digital network hypothetical reference connection, in the fixed-satellite service operating below 15 GHz � �	WP 4B �	�	2004-11-09
�	[ 38 ] � �	FINAL LIST OF PARTICIPANTS � �	Director, BR �	�	2004-10-12
�	[ 37 ] � �	List of documents issued � �	BR Study Group Department �	�	2004-10-11
�	[ 36 ] � �	Executive report of the meetings of Working Party 4-9S � �	Chairman, WP 4-9S �	�	2004-10-11
�	[ 35 ] � �	Status of SF-series Recommendations and Reports - Frequency sharing between the fixed-satellite service and the fixed service � �	BR Secretariat �	�	2004-10-11
�	[ 34 ] � (Rev.1)�	Draft new Recommendation ITU-R SF.[4-9S/COORDINATION-multiES] - Methods to facilitate the implementation of large numbers of earth stations in the FSS in areas where terrestrial services are also deployed � �	WP 4-9S �	�	2004-10-08
�	[ 33 ] � (Rev.1)�	Draft revision of Recommendation ITU-R SF.1601 - Methodologies for interference evaluation from the downlink of the fixed service using high altitude platform stations to the uplink of the fixed-satellite service using the geostationary satellites within the band 27.5-28.35 GHz � �	WP 4-9S �	�	2004-10-08
�	[ 32 ] � �	Official position of the Syrian Administration regarding any possible forwarding by Working Party 4-9S in October 2004 of a new revision of Recommendation ITU-R SF.1650 seeking adoption by correspondence � �	Syria �	�	2004-10-01
�	[ 31 ] � �	Renouvellement du Groupe du Manuel des T�l�communications par satellite � �	France �	�	2004-09-17
�	[ 30 ] � �	Review of draft new Recommendation ITU-R S.[Doc.4/23] - Power flux-density values in the band 11.7-12.7 GHz and associated calculation methodology which may be used when the power flux-density values in � 6 of Annex 1 to Apprendix 30 of Radio Regulations are exceeded � �	Korea (Republic of) �	�	2004-09-07
�	[ 29 ] � �	New assignments of categories to Working Party 4B Questions � �	Director, BR �	�	2004-08-27
�	[ 28 ] � �	Proposed suppression of three ITU-R Questions assigned to Working Party 4A � �	WP 4A �	�	2004-05-27
�	[ 27 ] � �	New assignments of categories to WP 4A Questions � �	Director, BR �	�	2004-05-27
�	[ 26 ] � �	Draft revision of Question ITU-R 270/4 - Fixed-satellite service systems using very wideband spreading signals � �	WP 4A �	�	2004-05-20
�	[ 25 ] � �	Draft new Question ITU-R [Doc.4/25] - Frequency sharing between the FSS and the space research service in the 37.5-38 GHz and 40-40.5 GHz bands � �	WP 4A �	�	2004-05-20
�	[ 24 ] � �	Additional GSO systems data for the Recommendation ITU-R S.1328 database � �	WP 4A �	�	2004-05-20
�	[ 23 ] � +Corr.1�	Draft new Recommendation ITU-R S.[Doc.4/23] - Power flux-density values in the band 11.7-12.7 GHz and associated calculation methodology which may be used when the power flux-density values in � 6 of Annex 1 to Appendix 30 of the ITU Radio Regulations are exceeded � �	WP 4A �	236/4 �	2004-05-20
�	[ 22 ] � �	Draft new Recommendation ITU-R S.[Doc.4/22] - Electronic data file format for earth station antenna patters � �	WP 4A �	42/4 �	2004-05-20
�	[ 21 ] � �	Draft revision of Question ITU-R 249/4 - Interoperability of equipment for digital transmission of television news gathering via satellite news gathering � �	WP 4B �	�	2004-05-18
�	[ 20 ] � �	Draft revision of Question ITU-R 226-1/4 - Use of portable and transportable transmitting earth stations for digital transmission of digital high-definition television for news gathering and outside broadcasts via satellite � �	WP 4B �	�	2004-05-18
�	[ 19 ] � �	Draft new Question ITU-R [Doc.4/19] - Interference between satellite news gathering (SNG) carriers by unintentional access � �	WP 4B �	�	2004-05-18
�	[ 18 ] � �	Draft modification to Recommendation ITU-R S.1522 - Impact of loss of synchronization and recovery time on availability in hypothetical reference digital paths � �	WP 4B �	73/4 �	2004-05-18
�	[ 17 ] � �	Draft revision of Recommendation ITU-R S.1149-1 - Network architecture and equipment functional aspects of digital satellite systems in the fixed-satellite service forming part of synchronous digital hierarchy transport networks � �	WP 4B �	201/4 �	2004-05-18
�	[ 16 ] � �	Draft revision of Recommendation ITU-R S.1062-2 - Allowable error performance for a satellite hypothetical reference digital path operating below 15 GHz � �	WP 4B �	75/4 �	2004-05-18
�	[ 15 ] � �	Draft modification to Recommendation ITU-R S. 614-3 - Allowable error performance for a satellite hypothetical reference digital path in the fixed-satellite service operating below 15 GHz when forming part of an international connection in an integrated services digital network � �	WP 4B �	52/4 �	2004-05-18
�	[ 14 ] � +Add.1�	Draft new Recommendation ITU-R S.[TT&C] [Doc. 4/14] - Performance and availability objectives for FSS telemetry, tracking and command systems � �	WP 4B �	�	2004-05-18
�	[ 13 ] � �	New assignments of categories to WP 4-9S Questions � �	Director, BR �	�	2004-03-23
�	[ 12 ] � �	Draft revision of Recommendation ITU-R SF.1650 - The minimum distance from the baseline beyond which in-motion earth stations located on board vessels would not cause unacceptable interference to the terrestrial service in the bands 5 925-6 425 MHz and 14-14.5 GHz � �	WP 4-9S �	�	2004-02-18
�	[ 11 ] � �	Liaison statement to the Chairman of ITU-R Study Group 4 and ITU-R Working Parties 4A and 4B - Satellite frequency allocations that could support the modernization of civil aviation telecommunication systems � �	WP 8D �	�	2004-01-28
�	[ 10 ] � �	Comments in responses to Circular Letter CAR/159 � �	BR Secretariat �	�	2004-01-26
�	[ 9 ] � �	Summary of results of RA-03, WRC-03 and CPM06-1 � �	Chairman, SG 4 �	�	2004-01-19
�	[ 8 ] � �	Summary record of the meeting of SG4 (20 March, 2003) � �	Chairman, SG4 �	�	2003-12-08
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