(Presented by ASECNA) SUMMARY

Transcription

1 CNS/SG/ WP INTERNATIONAL CIVIL AVIATION ORGANIZATION AFI PLANNING AND IMPLEMENTATION REGIONAL GROUP COMMUNICATIONS, NAVIGATION AND SURVEILLANCE SUB-GROUP THIRD MEETING CNS/SG/ (Nairobi, Kenya, 6- April ) (Presented by ASECNA) SUMMARY This Working paper accounts for the status of Aeronautical Mobile Service (AMS) in ASECNA area. It focuses on the extended VHF coverage and the modernization of HF in the ASECNA FIRs, the results of the last AMS availability survey and calls for cooperative actions to be taken when implementing the communications systems near the boundaries of the FIRs. Agenda Item : Aeronautical Mobile Service. Introduction The ICAO AFI/7 RAN Meeting supports strongly the use of VSAT technology to improve the pilot /controller communications. Since 997 when it experienced the first Remote VHF using VSAT Station, ASECNA pursue the extension of the VHF coverage by implementing in the various FIRS. Up today, more than forty VHF remote stations are implemented and work in various climatic conditions. In the oceanic areas where remote VHF stations implementation are not possible with the current technologies, HF communication continue to be provided between ATC and airlines crews in support to ADS/CPDLC.. Discussion. Status of implementation Since 997 that it experienced the first remote VHF station using VSAT technology, ASECNA pursue the improvement of VHF extended coverage by implementing VHF remote stations in the all the FIRs. Up Today, more than forty remote stations are implemented as shown in the following table and in figure in appendix. FIR Nb of Remote s VHF Remote VHF In progress (before end of ) Remarks Antananarivo 9 Coverage of the East part Brazzaville 6 Densification of VHF coverage Dakar Coverage of the north and East part Niamey 6 Coverage of the North East part

2 N Djamena 7 Coverage of the North and North East part In the - investment plan adopted by the board of Ministries, the extension VHF coverage constitutes a high priority.. AFI extended VHF coverage availability survey According to APIRG 6 th Conclusion 6/9 regarding surveys on AMS/VHF coverage by States and International Organizations, ASECNA centers took part in the VHF/HF availability survey conducted from nd to rd February 9 in coordination with IATA. The objective of the survey was: Testing implemented VHF remote stations range Diagnosing deficiencies of VHF Coverage Improving and extending VHF Coverage The Methodology used was based on the survey fiche form (in annex which put at the disposal of the controllers which allows to report the quality of the communications according to the flight level, the time of flight and the reports positions and to analyze the results of the survey.. Results FIR Number of Reports Quality of VHF communications Antananarivo 7.%.%.8%.% 7.%.9% 8, 7, 6,, Antananarivo Brazzaville Brazzaville 88.%.%.%.%.%.% Dakar (terrestre) 9.%.%.6%.% 8.% 69.% N Djamena 6 7.%.%.% 7.7%.9% 7.% Niamey 6.8%.8%.% 9.6%.%.%,,,,, Dakar (terrestre) N Djamena Niamey The results consolidated on the map below point out: Noticeable improvement in quality of communications, in line with increased availability of VHF and HF regarding the passed surveys; A quality of communications with an average level between and ; Located areas not covered in each FIR and due to the difficulty to implement a remote VHF( sites no secured); HF still remains the only means available in some portions of the FIR in the meantime appropriate sites to cover these portions are found; The climatic and safety conditions related to some remote VHF stations sites impact on the availability of the service.

3 . Improvement of the AMS The survey points out the report points not yet covered are located at non secured areas and very difficult to be accessed or near the boundary of non ASECNA Firs. However ASECNA planned to cover them as far as possible in its 9- Plan. The improvement ongoing is related to: Extension of VHF coverage to the areas not yet covered (secured sites or cooperative actions with other ANSP/ States are required) Densification of the VHF coverage to secure the AMS; Improvement and Modernization of the HF ( the project is ongoing); Implementation of ADS-C/CPDLC(All the () FIRs are pre-or full operational, rate of equipped airlines still low);. Conclusion The meeting is invited to: take note of the information above and to encourage all COM centers to conduct surveys concerning the availability of VHF coverage; encourage states/organizations to conduct periodic technical and operational surveys concerning the availability of VHF coverage; recommend cooperation between the ANSP/States to improve VHF coverage notably by sharing VHF coverage at the boundaries of the FIRs; Encourage the airlines to equip to take advantage of the ADS-C CPDLC systems on going

4 NDJAMENA VHF/HF survey result NIAMEY 8.MHZ. MHZ HF ² 6.MHZ,MHZ 889 KHZ BRAZZAVILLE DAKAR 7.MHZ 8.9MHZ 89KHZ 9KHZ, MHZ 9,MHZ 6KHZ 6KHZ NOUAKCHOTT NOUAKCHOTT KHZ 889KHZ. MHZ

5 Extended VHF implementation Table FIR CCR States Location ICAO Indicator Geographic Location Frequencies Covered Routes BRAZZAVILLE Brazzaville Centrafrique Bouar Bria FEFO FEFR 7' N 8 E 7, MHz UA, UG6, UM7, UM998, UA69 6 ' N 9 E 7, MHz UM, UM, UA Bangui FEFF 7, MHz Gabon Makokou FOOK Congo Brazzaville Ouesso Pointe Noire FCBB FCOU FCPP UA, UA67, UG6, UA69, UG6, UA6 N ' E 8,9 MHz UG6, UR986, UA6, UG77 ' " S ' " E 8,9 MHz UA6, UG77, UG86, UA, UA 6' N 6 E 7, MHz UM998, UA, UA, UA6, UG6, UG67 8',7 S 6, E 8,9 MHz UR987, UR988, UR6, UG86 Cameroun Ngaoundéré FKKN 8,9 MHz UG77, UHG, UM998, UG6 Yaoundé FKYS 8,9 MHz UH, UR98, UA6, UR986, UG87 Sao Tomé Sao tomé FPST ',6''N 6 ',9''E 8,9 MHz UA, UR979, UR6, UG87, Atar Bir Mogrhein GQPA GQPT ''' N '' W ''' N 6 "W 9, MHz /,MHz 9, MHz /,MHz UA8, UR97, UR6, UB78 UR97 DAKAR Dakar Mauritanie Nema GQNI El Mreti Tidjkja GQND Nouadhibou GQPP Sénégal Tambacounda GQTT 6 7'9, N 7 8, W 6' N 7 W 9, MHz /,MHz 9, MHz /,MHz 9, MHz /,MHz 9, MHz /,MHz UR977G, UM, UM8, UB7F UA8, UM, UR977, UM7, UR866G UR7, UM7, UG8, UM7 UA6F, UB6, UG8, UB6 ' N 9 W 9, MHz UA6, UB78, UM97, UR7

6 Burkina Bobo Dioulasso DFOO 9, MHz UG8, UA6 DAKAR Abidjan Côte d Ivoire Bouaké Touba DIBK DITM 9, MHz 9, MHz UG8, UR979, UB79, UA6 UG8, UG8, UR979 Tchad San Pedro Abéché Am-Timan Diré DISP FTTC FTTN 9, MHz UB6, UB79, UG8 '8, N,'' E, MHz UG6, UG66, UM,UM '"N 6'9"E, MHz UM,UM, UG86, UW6 '"N 9'8"E 8, MHz UG86, UA, UR778 Bardai FTTZ, MHz UG6, UR778 NDJAMENA Ndjamena Sarh FTTA, MHz UB76, UA67 Faya FTTY Niger Dirkou DRZD Centrafrique Bria FEFR 7 6' N 9 7 E, MHz UG6, UM, UM 9 ' N E 8, MHz UG86, UG77, UA67, UB7 6 '6, N 9, E, MHz UM, UM, UA Cameroun Ngaoundéré FKKN 8, MHz UG77, UHG, UM998, UG6 Garoua FKKR 9 9''' N 8'' E 8, MHz UB76, UG77, UW6, UG87, UHG Kidal GAKL 6, MHz UG89, UM68 Gao GAGO 6 8''' N 8 '' W 6, MHz UR98, UG89, UA6, UA6 NIAMEY Niamey Mali Mopti GAMB ',9 N, W 6, MHz UM97, UA6, UG6, UB77 Tessalit GATS 6' N E 6, MHz UB77, UG89 Tombouctou GATB 6 ', N 9,6 W 6, MHz UB77, UR866G, UA6 6

7 Agadez DRZA 7 ' N 7 E 6, MHz UA6, UR978, UB7 NIAMEY Niamey Niger Tahoua DRRT 6, MHz UB7, UG8 Dirkou DRZD 6, MHz UG86, UG77, UA67, UB7 Zinder DRZR Comores Moroni FMCH Antsiranana FMNA Mahajanga FMNM '"N 9 '"E 6, MHz UA6, UG88, UG6 ', S 6 6,8 E 8,9 MHz UAF, UB79G, UR78G, UG66 '" S 9 " E 8,9 MHz UA69, UG6, UR78, UB9 '8"S 6 '6"E 8,9 MHz UA, UR77 Maintirano FMMO 8,9 MHz UAG ANTANANARIVO Antananarivo Madagascar Antalaha FMNH 8,9 MHz UG66, UB9, UA69G Mananjary FMSM 8,9 MHz UG6G Taolagnaro FMSD '9"N 6 7'"E 8,9 MHz UAG, UG6F Toamasina FMMT 8 7' " N 9 ' " E 8,9 MHz UR8, UB79G Toliary FMST ' S E 8,9 MHz UG6, UG6, UG6 7

8 BIR MOGRHEIN Figure : Extended VHF implementation status VHF COVERAGE UPPER AIR SPACE EL MRETI NOUDHIBOU ATAR NOUAKCHOTT TIDJIKJA TESSALIT DIRKOU DAKAR BISSAU TAMBACOUMDA TOMBOUCTOU NEMA GAO MOPTI BAMAKO OUAGADOUGOU NIAMEY AGADES ZINDER FAYA LARGEAU DIRE ABECHE N'DJAMENA BOBO Bouaké Touba GAROUA AM-TINAM San Pedro local VHF Station DAKAR FIR VHF Station NDJAMENA FIR VHF Station ABIDJAN LOME COTONOU NGAOUNDERE BOUAR BANGUI MALABO DOUALA OUESSO SAO TOME MAKOKOU LIBRVILLE BRIA Moroni Mahajanga Maintirano Antsiranana Antalaha FIR NIAMEY VHF Station BRAZZAVILLE FIR VHF Station ANTANANARIVO FIR VHF Station 'UTA VHF Station POINTE NOIRE BZV ANV Toamasina Mananjary Toliara Tolagnaro 8