Agenda Item 9：议程项目9.1.5 ITU WRC-15 (Rev 1).pptx

WRC-15 Agenda Item 5 (); Consideration of technical and regulatory actions in order to support existing and future operation of fixed ? satellite service earth stations within the band 3 400 –4 200 MHz, as an aid to the safe operation of aircraft and reliable distribution of Meteorological information in some countries in Region 1 (Resolution 154 (WRC-12)) Historic Background Aviation safety across the African Continent has promised by a lack of reliable fixed aeronautical munications infrastructure used for providing Air Traffic Services/Direct Speech ( “ ATS/DS ”) and Aeronautical Fixed work ( “ AFTN ”) voice and data services African Service Providers, Air Traffic and Navigation Services (ATNS) and the Agency for the Safety of Aerial Navigation in Africa (A) introduced Very Small Aperture Terminal (VSAT) networks to resolve the lack of communications. Historic Background Continue The works evolved as improved technology became available and today sports the ATNS SADC/work supporting the Southern African munity (SADC), the North East AFI (Africa-Indian Ocean) Region, to address the ATS/DS and AFTN deficiencies within this region. (The work) Historic Background Continue In West Africa work was also initiated by A. work called AEROSATEL was implemented to provide Reliable Aeronautical Fixed and mobile services in the West and Central Africa region in the ACCRA, KANO, N`DJAMENA and NIAMEY FIR. Historic Background Continue This work was expanded and became . This service covers the A area including Roberts FIR, Madagascar, Reunion and Mayotte, oros, Angola, Algeria, Sao Tome & Principe with links to South Africa and France Historic Background Continue Additional Multi-Channel per Carrier ( “ MCPC ”) point-to-point links are provided in the SADC and NAFISAT work for interconnection to the A (“ Africa Indian Ocean Satellite Network ”) work operated in West Africa. Historic Background Continue The CA