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analysis ..............................
Attachment B to Part I .Gui dance material
for the VHF Digital Link (VDL)
1 . Guidance material for the VHF digital link
(VDL) ...............................
2 . System description .....................
3 . VDL principles ........................
3.1 Communications transfer principles ...
3.2 VDL quality of service for ATN
routing ..........................
4 . VDL ground station network concept ......
4.1 Access . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Institutional issues concerning VDL
ground station network operators .....
4.3 VDL ground station equipment ......
4.4 Ground station siting ...............
4.5 Ground station frequency
engineering . . . . . . . . . . . . . . . . . . . . . .
4.6 Ground station connection to
intermediate systems ...............
5. VDL airborne operating concept ..........
5.1 Avionics .........................
5.2 VDL avionics certification ..........
5.3 Registration of aircraft with VDL
network operators . . . . . . . . . . . . . . . . .
Figure for Attachment B . . . . . . . . . . . . . . . . .
Attachment A to Part I1 .Guid ance material for
communication systems . . . . . . . . . . . . . . . . . . . . . . . . .
1 . VHF communications ...................
2 . SELCAL system . . . . . . . . . . . . . . . . . . . . . . .
Page
Foreword Annex 10 - Aeronautical Telecommunications
Table A. Amendments to Annex 10, Volume III
Adopted
Effective
Amendment Sourcels) Subjecr(s) Applicable
70 Air Navigation Commission,
Third Meeting of the
Aeronautical MobiIe
Communications Panel
(AMCP)
71 , Air Navigation Commission;
SP COMlOPS195 Divisional
Meeting (1995); fifth meeting
of the Secondary Surveillance
Radar Improvements and
Collision Avoidance Systems
Panel (SICASP); third meeting
of the Aeronautical Mobile
Communications Panel
(AMCP)
72 Air Navigation Commission;
fourth meeting of the
Aeronautical Mobile
Communications Panel
(AMCP)
73 Air Navigation Commission;
second meeting of the
Aeronautical
Telecommunication Network
Panel (ATNP); sixth meeting of
the Secondary Surveillance
Radar Improvements and
Collision Avoidance Systems
Panel (SICASP)
74 Fifth meeting of the
Aeronautical Mobile
Communications Panel
(AMCP); Air Navigation
Commission
75 Sixth meeting of the
Aeronautical ,Mobile
Cornrn~nications Panel
(AMCP); Air Navigation
Commission
Introduction of new Volume III and SARPs related to the Aeronautical 20 March 1995
Mobile-Satellite Service (AMSS) 24 July 1995
9 November 1995
Addition of specifications for the Mode S subnetwork of ATN; 12 March 1996
addition of material relating to the introduction of 8.33 kHz channel 15 July 1996
spacing; changes to material related to the protection of air-ground 7 November 1996
communications in the VHF band; addition of technical specifications
relating to the RF characteristics for the VHF digital link (VDL).
Introduction of SARPs and guidance material for VHF digital link 12 March 1997
(VDL); definition for VDL and deletion of obsolete material on 21 July 1997
air/grovnd data interchange, 6 November 1997
Introduction of material relating to the ATN; changes to specifications 19 March 1998
of the Mode S subnetwork. 20 July 1998
5 November 1998
Introduction of: a) specifications for HF data link; and b) changes to 18 March 1999
the specifications for emergency locator transmitters. 19 July 1999
4 November 1999
Changes to the AMSS SARPs introducing a new antenna type, a new 13 March 2000
voice channel type and enhanced provisions for interoperability 17 July 2000
among AMSS systems; changes to the VDL SARPs to reduce 2 November 2000
potential interference to cutrent VHF voice communication systems
caused by VDL transmitters; changes to the VHF voice communication
SARPs to enhance immunity to interference from VDL
transmitters on board the same aircraft.
CHAPTER 4. AERONAUTICAL
MOBILE-SATELLITE SERVICE
4.1 DEFINITIONS AND DESCKUPTIONS
OF CHANNEL TYPES; GENERAL;
SYSTEM CAPABILITIES
4.1.1 Definitions and descriptions
of channel types
Application. The ultimate use of an information system, as
distinguished from the system itself.
Aviation-BPSK (A-BPSK), The particular form of binary phase
shift keyed modulation .which is used in AMSS for channel
rates of 2.4, 1.2 and 0.6 kbitsls. A-BPSK is a modulation
technique which maps a "0" to a phase shift of -90" and " 1"
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