ITU-R Questions R-QUE-SG04

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Number	Title	Study group	Resp. WPs	Approval date	Target year	Category
Count= 57
42-1/4	Characteristics of antennas at earth stations in the fixed-satellite service	SG4	WP4A	1993	2013	S1
46-3/4	Preferred multiple-access characteristics in the fixed-satellite service	SG4	WP4B	2007	2014	S2
70-1/4	Protection of the geostationary-satellite orbit against unacceptable interference from transmitting earth stations in the fixed-satellite service at frequencies above 15 GHz	SG4	WP4A	1993	2015	S3
73-2/4	Availability and interruptions to traffic on digital paths in the fixed satellite service	SG4	WP4B	2006	2014	S2
83-6/4	Efficient use of the radio spectrum and frequency sharing within the mobile-satellite service	SG4	WP4C	2009	2013	S1
84-4/4	Use of non-geostationary-satellite orbits in mobile-satellite services	SG4	WP4C	2007	2014	S2
87-4/4	Transmission characteristics for a mobile-satellite communication system	SG4	WP4B; WP4C	2007	2014	S2
88-1/4	Propagation and mobile earth station antenna characteristics for mobile-satellite services	SG4	WP4C	1990	2015	S3
91-1/4	Technical and operating characteristics of the radiodetermination-satellite service	SG4	WP4C	1990	2014	S2
109-1/4	Global Maritime Distress and Safety System requirements for mobile-satellite systems operating in the bands 1 530-1 544 MHz and 1 626.5-1 645.5 MHz	SG4	WP4C	2007	2013	S1
110-1/4	Interference to the aeronautical mobile-satellite (R) service	SG4	WP4C	2002	2014	S2
201-1/4	Frequency sharing between mobile-satellite services and other services	SG4	WP4C	2003	2014	S2
203-1/4	The impact of using small antennas on the efficient use of the geostationary-satellite orbit	SG4	WP4A	1993	2014	S2
205-1/4	Frequency sharing between non-geostationary satellite feeder links in the fixed-satellite service used by the mobile-satellite service	SG4	WP4A; WP4C	1995	2014	S2
208/4	Use of statistical and stochastic methods in evaluation of interference between satellite networks in the fixed-satellite service	SG4	WP4A	1993	2015	S3
209/4	The use of frequency bands allocated to the fixed-satellite service for both the up and down links of geostationary-satellite systems	SG4	WP4A	1993	2014	S2
210-1/4	Technical characteristics for mobile earth stations operating with global non geostationary-satellite systems in the mobile-satellite service in the band 1-3 GHz	SG4	WP4C	2007	2013	S1
211-2/4	Interference criteria and calculation methods for the mobile-satellite service	SG4	WP4C	2003	2014	S2
214/4	Technical implications of steerable and reconfigurable satellite beams	SG4	WP4A	1993	2013	S1
217-2/4	Interference to the radionavigation-satellite service in the ICAO global navigation satellite system	SG4	WP4C	2007	2013	S1
218-1/4	Compatibility between on-board processing satellites in the fixed-satellite service and terrestrial networks	SG4	WP4B	1995	2014	S2
227/4	Technical and operational characteristics of emergency communications in the mobile-satellite service	SG4	WP4B; WP4C	2000	2013	S1
231/4	Sharing between networks of the fixed-satellite service using non-geostationary satellites and other networks of the fixed-satellite service	SG4	WP4A	1995	2014	S2
233/4	Dedicated user digital satellite communications systems and their associated architectures	SG4	WP4A; WP4B	1995	2014	S2
236/4	Interference criteria and calculation methods for the fixed-satellite service	SG4	WP4A	1995	2014	S2
244/4	Sharing between feeder links of the mobile-satellite (non-geostationary) service in the band 5 091-5 250 MHz and the aeronautical radionavigation service in the band 5 000-5 250 MHz	SG4	WP4A	1996	2014	S2
245-1/4	Out-of-band and spurious emission limits	SG4	WP4A; WP4C	2009	2013	S1
248/4	Frequency sharing between systems in the fixed-satellite service and wireless digital networks around 5 GHz	SG4	WP4A	1997	2015	S3
263-1/4	Performance objectives of digital links in the fixed-satellite service for transmission of Internet or higher layer Protocol packets	SG4	WP4B	2006	2013	S1
264/4	Technical and operational characteristics of networks of the fixed-satellite service operating above 275 GHz	SG4	WP4A	2000	2014	S2
266/4	Technical characteristics of high-density fixed-satellite service earth stations operating with geostationary satellite orbit fixed-satellite service networks in the 20/30 GHz bands	SG4	WP4A	2001	2014	S2
267/4	Technical and operational considerations relating to the advance publication, coordination and notification of fixed-satellite networks	SG4	WP4A	2003	2014	S2
268/4	Development of methodologies for the assessment of satellite unwanted emission levels before launch	SG4	WP4A	2003	2015	S3
270-1/4	Fixed-satellite service systems using very wideband spreading signals	SG4	WP4A	2004	2014	S2
271/4	Interference between satellite news gathering (SNG) carriers by unintentional access	SG4	WP4B	2004	2013	S1
272/4	Frequency sharing between the FSS and the space research service in the 37.5-38 GHz and 40-40.5 GHz bands	SG4	WP4A	2004	2014	S2
273/4	Support of the modernization of civil aviation telecommunication systems and the extension of telecommunication systems to remote and developing regions with current and planned satellite networks	SG4	WP4A; WP4B; WP4C	2007	2013	S1
274/4	Technical methods for improving the spectrum/orbit utilization	SG4	WP4A	2008	2013	S1
275/4	Performance objectives of digital links in the fixed-satellite and mobile-satellite services forming elements of the Next Generation Network	SG4	WP4B	2009	2014	S2
276/4	Availability of digital paths in mobile-satellite services	SG4	WP4B	2009	2014	S2
277-1/4	Performance objectives for digital fixed-satellite and mobile-satellite services with variable bit-rate paths	SG4	WP4B	2018	2014	S2
278/4	Use of operational facilities to meet power flux-density limitation under Article 21 of the Radio Regulations	SG4	WP4A	2009	2013	S1
279/4	Satellite broadcasting of high definition television	SG4	WP4A	2009	2013	S1
280/4	Receiving earth station antennas for the broadcasting satellite service	SG4	WP4A	2009	2013	S1
281/4	Digital techniques in the broadcasting-satellite service (sound and television)	SG4	WP4A	2009	2013	S1
282/4	Frequency sharing issues related to the introduction of the broadcasting-satellite service (sound) in the frequency range 1-3 GHz	SG4	WP4A	2009	2013	S1
283/4	Sharing studies between high-definition television in the broadcasting-satellite service and other services	SG4	WP4A	2009	2013	S1
284/4	Spectrum management issues related to the introduction of the broadcasting-satellite service (sound) in the frequency range 1-3 GHz	SG4	WP4A	2009	2013	S1
285/4	Digital broadcasting of multiple services and programmes in the broadcasting-satellite service	SG4	WP4A	2009	2013	S1
286/4	Contributions of the mobile and amateur services and associated satellite services to the improvement of disaster communications	SG4	WP4C	2009	2014	S2
287/4	Technical and operational characteristics for packet network transmission in mobile-satellite services	SG4	WP4B	2009	2013	S1
288/4	Characteristics and operational requirements of radionavigation-satellite service (space-to-Earth, space-to-space, Earth-to-space) systems	SG4	WP4C	2009	2014	S2
289/4	Interactive satellite broadcasting systems (television, sound and data)	SG4	WP4B	2012	2013	S1
290/4	Broadcasting-satellite means for public warning, disaster mitigation and relief	SG4	WP4B	2012	2013	S1
291/4	System architecture and performance aspects on integrated MSS systems	SG4	WP4B	2014	2016	S2
292/4	UHDTV satellite broadcasting systems	SG4	WP4B	2015	2017	S1
293/4	Antenna radiation diagrams/patterns for small (D/? around 30) earth station antennas used in fixed-satellite and broadcasting-satellite systems	SG4	WP4A	2015	2019	S2

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ITU-R Questions R-QUE-SG04