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provision for use of GBAS positioning service in support of terminal
area navigation (RNAV) operations; provision for use of new
Message Type 28 to enhance performance of SBAS; and
incorporation of additional guidance material and
clarifications/editorial corrections to SARPs and guidance material.
27 February 2002
15 July 2002
28 November 2002
78 — No change. —
(xvii) 23/11/06
Annex 10 — Aeronautical Communications Volume I
Amendment Source(s) Subject(s)
Adopted
Effective
Applicable
79 Fourth meeting of the Global
Navigation Satellite System
Panel
Changes to GNSS SARPs and related guidance material concerning
performance specifications for approach with vertical guidance
(APV); global positioning system (GPS) selective availability (SA)
discontinuation and clarification of signal power level; specifications
for modernized GLObal NAvigation Satellite System (GLONASSM);
frequency planning criteria for ground-based augmentation
system (GBAS) and a number of other enhancements.
23 February 2004
12 July 2004
25 November 2004
80 Eleventh Air Navigation
Conference
Updates to the strategy for introduction and application of non-visual
aids to approach and landing.
25 February 2005
11 July 2005
24 November 2005
81 Navigation Systems
Panel (NSP)
a) Introduction of ground-based regional augmentation system
(GRAS) Standards and Recommended Practices (SARPs);
b) amendments to SARPs for instrument landing system (ILS),
distance measuring equipment (DME) and microwave landing
system (MLS).
24 February 2006
17 July 2006
23 November 2006
* Did not affect any Standards or Recommended Practices.
___________________
23/11/06 (xviii)
INTERNATIONAL STANDARDS
AND RECOMMENDED PRACTICES
CHAPTER 1. DEFINITIONS
Note 1.— All references to “Radio Regulations” are to the Radio Regulations published by the International
Telecommunication Union (ITU). Radio Regulations are amended from time to time by the decisions embodied in the Final
Acts of World Radiocommunication Conferences held normally every two to three years. Further information on the ITU
processes as they relate to aeronautical radio system frequency use is contained in the Handbook on Radio Frequency
Spectrum Requirements for Civil Aviation including statement of approved ICAO policies (Doc 9718).
Note 2.— Annex 10, Volume I includes Standards and Recommended Practices for certain forms of equipment for air
navigation aids. While the Contracting State will determine the necessity for specific installations in accordance with the
conditions prescribed in the relevant Standard or Recommended Practice, review of the need for specific installation and the
formulation of ICAO opinion and recommendations to Contracting States concerned is carried out periodically by Council,
ordinarily on the basis of recommendations of Regional Air Navigation Meetings (Doc 8144 — Directives to Regional Air
Navigation Meetings and Rules of Procedure for their Conduct).
When the following terms are used in this volume, they have the following meanings:
Altitude. The vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL).
Effective acceptance bandwidth. The range of frequencies with respect to the assigned frequency for which reception is
assured when all receiver tolerances have been taken into account.
Effective adjacent channel rejection. The rejection that is obtained at the appropriate adjacent channel frequency when all
relevant receiver tolerances have been taken into account.
Elevation. The vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level.
Fan marker beacon. A type of radio beacon, the emissions of which radiate in a vertical fan-shaped pattern.
Height. The vertical distance of a level, a point or an object considered as a point, measured from a specified datum.
Human Factors principles. Principles which apply to design, certification, training, operations and maintenance and which
seek safe interface between the human and other system components by proper consideration to human performance.
Mean power (of a radio transmitter). The average power supplied to the antenna transmission line by a transmitter during an
interval of time sufficiently long compared with the lowest frequency encountered in the modulation taken under normal
operating conditions.
Note.— A time of 1/10 second during which the mean power is greatest will be selected normally.
ANNEX 10 — VOLUME I 1-1 23/11/06
Annex 10 — Aeronautical Communications Volume I
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