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Efficient orbit/spectrum utilization for MSS and RDSS

Results:10 total items.

Contributions �[�Source:�WP 4A�]���
�	Number�	Title	Source	Date
�	[ 663 ] � �	Liaison statement to Working Party 5C (and to Working Party 4C for information) - Revision of Recommendation ITU-R F.758 "Consideration in the development of criteria for sharing between the fixed service and other services" and ITU-R F.1495 "Interference criteria to protect the fixed service from time varying aggregate interference from other Radiocommunication services sharing.. � �	WP 4A �	2011-10-06
�	[ 599 ] � �	Liaison statement to Working Party 5C (copy to Working Party 4C for information) - Consideration of draft revision of Recommendation ITU-R F.758-4 � �	WP 4A �	2011-05-25
�	[ 437 ] � �	Liaison statement to Working Party 5C for action (copy to Working Party 4C for information) - Harmonization of spectrum for use by terrestrial electronic news gathering systems � �	WP 4A �	2010-04-30
�	[ 345 ] � �	Liaison statement to Working Party 4C � �	WP 4A �	2009-10-14
�	[ 257 ] � �	Liaison statement to Working Party 4C - Information for studies related to WRC-11 Agenda item 1.25 � �	WP 4A �	2009-05-28
�	[ 256 ] � �	Liaison statement to Working Party 4C - Preliminary 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 � �	WP 4A �	2009-05-28
�	[ 154 ] � �	Liaison statement of Working Party 4C - Studies related to WRC-11 Agenda item 1.25 � �	WP 4A �	2008-10-29
�	[ 152 ] � �	Liaison statement to Working Party 1A (copy to Working Party 4C for information) - Proposed deletion of portions of section 3 of Annex 5 to Recommendation ITU-R SM.1541-2 � �	WP 4A �	2008-10-24
�	[ 151 ] � �	Liaison statement to Working Parties 1B and 5A (information copy to Working Party 4C) - On the study of software-defined radio and cognitive radio systems (WRC-11 Agenda item 1.19) � �	WP 4A �	2008-10-21
�	[ 69 ] � �	Liaison statement to Working Party 1B concerning WRC-11 Agenda item 1.19 (copy for information to Working Party 4C and Study Groups 3, 5, 6 and 7) � �	WP 4A �	2008-05-07
Results:10 total items. �

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