ITU

التزام بتوصيل العالم

Satellite services

Number Category Group Title

42-1/4

(S1) WP4A

Characteristics of antennas at earth stations in the fixed-satellite service  

70-1/4

(S3) WP4A

Protection of the geostationary-satellite orbit against unacceptable interference from transmitting earth stations in the fixed-satellite service at frequencies above 15 GHz  

203-1/4

(S2) WP4A

The impact of using small antennas on the efficient use of the geostationary-satellite orbit  

205-1/4

(S2) WP4A/WP4C

Frequency sharing between non-geostationary satellite feeder links in the fixed-satellite service used by the mobile-satellite service  

208/4

(S3) WP4A

Use of statistical and stochastic methods in evaluation of interference between satellite networks in the fixed-satellite service  

209/4

(S1) WP4A

The use of frequency bands allocated to the fixed-satellite service for both the up and down links of geostationary-satellite systems  

214/4

(S2) WP4A

Technical implications of steerable and reconfigurable satellite beams  

231/4

(S2) WP4A

Sharing between networks of the fixed-satellite service using non-geostationary satellites and other networks of the fixed-satellite service  

233/4

(S2) WP4A/WP4B

Dedicated user digital satellite communications systems and their associated architectures  

236/4

(S2) WP4A

Interference criteria and calculation methods for the fixed-satellite service  

244/4

(C2) WP4A

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  

245-1/4

(S1) WP4A/WP4C

Out-of-band and spurious emission limits  

248/4

(S3) WP4A

Frequency sharing between systems in the fixed-satellite service and wireless digital networks around 5 GHz  

264/4

(C2) WP4A

Technical and operational characteristics of networks of the fixed-satellite service operating above 275 GHz  

266/4

(C1) WP4A

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  

267/4

(S2) WP4A

Technical and operational considerations relating to the advance publication, coordination and notification of fixed-satellite networks  

268/4

(S2) WP4A

Development of methodologies for the assessment of satellite unwanted emission levels before launch  

270-1/4

(S1) WP4A

Fixed-satellite service systems using very wideband spreading signals  

272/4

(S2) WP4A

Frequency sharing between the FSS and the space research service in the 37.5-38 GHz and 40-40.5 GHz bands  

273/4

(S1) WP4A/WP4B/WP4C

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  

274/4

(S1) WP4A

Technical methods for improving the spectrum/orbit utilization  

278/4

(S1) WP4A

Use of operational facilities to meet power flux-density limitation under Article 21 of the Radio Regulations  

279/4

(S1) WP4A

Satellite broadcasting of high definition television  

280/4

(S1) WP4A

Receiving earth station antennas for the broadcasting satellite service  

281/4

(S1) WP4A

Digital techniques in the broadcasting satellite service (sound and television)  

282/4

(S1) WP4A

Frequency sharing issues related to the introduction of the broadcasting satellite service (sound) in the frequency range 1 3 GHz  

283/4

(S1) WP4A

Sharing studies between high definition television in the broadcasting satellite service and other services  

284/4

(S1) WP4A

Spectrum management issues related to the introduction of the broadcasting-satellite service (sound) in the frequency range 1 3 GHz  

285/4

(S1) WP4A

Digital broadcasting of multiple services and programmes in the broadcasting satellite service