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2.4 Receiver requirements . . . . . . . . . . . . . . . . 359
2.5 Transmitter requirements . . . . . . . . . . . . . . 360
2.6 Interference . . . . . . . . . . . . . . . . . . . . . . . 362
3 . RF channel characteristics . . . . . . . . . . . . . . . . . 362
3.1 Modulation characteristics . . . . . . . . . . . . . 362
3.2 Bounds on radiated power
spectral density . . . . . . . . . . . . . . . . . . . . 363
3.3 Demodulator performance . . . . . . . . . . . . . 363
3.4 Acquisition delay . . . . . . . . . . . . . . . . . . . 363
4 . Channel format types and data rates . . . . . . . . . . 363
4.1 Gcneral . . . . . . . . . . . . . . . . . . . . . . . . . . 363
4.2 P channel . . . . . . . . . . . . . . . . . . . . . . . . 364
4.3 Rchannel . . . . . . . . . . . . . . . . . . . . . . . . 365
4.4 T channel . . . . . . . . . . . . . . . . . . . . . . . . 365
4.5 C channel . . . . . . . . . . . . . . . . . . . . . . . . 365
5 . Link layer P channel and R channel protocols . . . 367
5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . 367
5.2 SU set generation . . . . . . . . . . . . . . . . . . . 367
5.3 SUs transmission according to precedence . . 367
5.4 P channel protocol . . . . . . . . . . . . . . . . . . 367
5.5 R channel protocol . . . . . . . . . . . . . . . . . . 368
6 . Link layer T channel and sub-band
C channel protocols . . . . . . . . . . . . . . . . . . . . . 369
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . 369
6.2 SU set generation . . . . . . . . . . . . . . . . . . . 369
6.3 T channel transmission protocol . . . . . . . . . 369
6.4 T channel reservation protocol . . . . . . . . . . 370
6.5 Sub-band C channel to-aircraft and
from-aircraft protocol . . . . . . . . . . . . . . . . 372
7 . Satellite subnetwork layer . . . . . . . . . . . . . . . . . 372
7.1 General provisions . . . . . . . . . . . . . . . . . . 372
7.2 Packet data performance . . . . . . . . . . . . . . 374
7.3 Satellite subnetwork dependent protocol
services and operations . . . . . . . . . . . . . . . 376
7.4 IS0 8208 DCE protocol operations . . . . . . 378
7.5 Management interface . . . . . . . . . . . . . . . . 378 8 . Circuit-mode services . . . . . . . . . . . . . . . . . . . . 379
8.1 Circuit-mode voice signalling protocols . . . . 379
8.2 Interworking of circuit-mode services
with other voice networks . . . . . . . . . . . . . 381
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Table of Contents Annex 10 .Aero nautical Telecommunications
8.3 lmplementing satellite voice in the
AT$ environment . . . . . . . . . . . . . . . . . . .
8.4 Terrestrial voice network considerations . . .
8.5 Implementing the group call/broadcast
functions . . . . . . . . . . . . . . . . . . . . . . . . .
8.6 Implementing the call registration
function . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7 Notes on the AMS(R)S air-origination
procedure . . . . . . . . . . . . . . . . . . . . . . . .
8.8 Circuit-mode access dclay performance . . . .
8.9 Subjcctive voice quality evaluation . . . . . . .
9 . Aircraft earth station (AES) management . . . . . .
9.1 General . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2 AES management interfaces . . . . . . . . . . .
9.3 AES management functions . . . . . . . . . . . .
10 . Ground earth station (GES) management . . . . . . .
10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2 GES management architecture . . . . . . . . . .
10.3 GES management interfaces . . . . . . . . . . .
10.4 GES management functions . . . . . . . . . . . .
10.5 Considerations for GES services . . . . . . . .
Tables for Attachment A . . . . . . . . . . . . . . . . . .
Figures for Attachment A . . . . . . . . . . . . . . . . .
Appendix to Attachment A . Performance analysis
Attachment A to Part II .Gui dance material for
communication systems .......................
1. VHF communications . . . . . . . . . . . . . . . . . . . .
2 . SELCAL system . . . . . . . . . . . . . . . . . . . . . . .
FOREWORD
Historical background
Standards and Recommended Practices for Aeronautical Telecommunications
were first adopted by the Council on 30 May
1949 pursuant to the provisions of Atticle 37 of the
Convention on International Civil Aviation (Chicago 1944)
and designated as Annex 10 to the Convention. They became
effective on 1 March 1950. The Standards and Recommended
Practices were based on recommendations of the Communications
Division at its Third Session in January 1949.
Up to and including the Seventh Edition, Annex 10 was
published in one volume containing four Parts together with
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