2 AVICOM Japan ACARS Service deployed APR. 1990 AOC Interoperability was established between SITA (1990) and ARINC (1991)Connected to KDD Yamaguchi GES for SATCOM Data service (1990)Head Office. Minato-ku, TokyoCapital. 1,310 Million YenStockholdersJAL, ANA, JAS, NTT, KDDI, NTT data etc
3 ACARS Current Status as of Oct. 2003 49 ACARS RGS in operation now.Base Frequency = MHz2nd Frequency = MHz at 7 Major airportApprox. 2.2 Million Blocks / monthUp link success rate : Approx. 92 %
6 Driving factor toward VDL AOA Steady growth of data link trafficNeed faster & reliable means to avoid capacity constraint.VDL AOA (ACARS Over AVLC)1st step for AOC delivery improvementATN (VDL M2) as 2nd step for ATS
7 VDL/AOA implementation Contract with Mar. 2002IOC : September at Narita & Kansai A/P.10 airports were selected as VDL/AOA site at initial phase.
8 ACARS and VDL/AOA Architecture at AVICOM Japan RGSACARSARINC SITAAirlineAVICOM CenterExisting ACARS SystemJDLCVGSNMSGateWayAGRMVDL Mode-2/AOA System
10 RGSVGSACARS Remote Ground StationVDL Ground Station
11 Performance - VDL Initial two weeks experience after IOC. Two aircraft, B ER have logged on to VGS.The airplane has flownKansai – China (Beijing, Shanghai)Kansai – HanedaUp link success = 98 %@ Gateway per message block
12 Difficulties - VDL VDL range seems slightly smaller than that of ACARS VDL cloud seems not continuous between Narita and Kansai.Need more VGSs to cover whole airspace over Japan.Blind area at Kansai airportInstallation of one more VGS at the other side of the terminal
14 Emerging ATNVDL/AOA Sys can be upgraded to an ATN compliant system by adding;Software to handle ATN messageRouters for distribution of ATN messageAnd some others. (Hard & Soft)Time for the upgrade depend on the progress of ATN implementation in Japan and World wide.
15 GEOThank you !AOA N/WACARS N/WTOKYO ACCARINC SITAAIRLINES HOST