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by international air sewices should be available in the English
language.
4.3.3.4 Recommendation.- Where VHF OFlS broadcasts
are available in more than one language, a discrete
channel should be used for each language.
4.3.3.5 Recommendation.- VHF operational jlight
information service broadcast messages should contain the
following information in the sequence indicated:
a) name of aerodrome;
b) time of observation;
c) landing runway;
d) signficant runway surface conditions and, i f appropriate,
braking action;
e) changes in the operational state of the navigation aids,
if appropriate;
f) holding delay, if appropriate;
g) sulface wind direction and speed; if appropriate,
maximum wind speed;
*h) visibility and, when applicable, runway visual range
(RVR);
*i) present weather;
*j) cloud below 1 500 m (5 000 ft) or below the highest
minimum sector altitude, whichever is greater; cumulonimbus;
ifthe sky is obscured, vertical visibility, when
available:
tk) air temperature;
t l ) dew point temperature;
tm) QNH altimeter setting;
n) supplementary information on recent weather of operational
signiJirance and, where necessary, wind shear;
o) trend forecast, when available; and
p) notice of current SIGMET messages.
4.3.4 Voice-automatic terminal information
service (Voice-ATIS) broadcasts
4.3.4.1 Voice-automatic terminal information service
(Voice-ATIS) broadcasts shall be provided at aerodromes
where there is a requirement to reduce the communication load
on the ATS VHF air-ground communication channels. When
provided, they shall comprise:
* These elements are replaced by the term "CAVOK, whenever the
conditions as specified in the PANS-ATM (Doc 4444), Chapter 11
prevail.
t As determined on the basis of regional air navigation agreements.
Annex 11 - Air Trafjic Services Chapter 4
a) one broadcast serving arriving aircraft; or 4.3.5 Data link-automatic terminal
information service (D-ATIS)
b) one broadcast serving departing aircraft; or
4.3.5.1 Where a D-ATIS supplements the existing
availability of Voice-ATIS, the information shall be identical
C) one serving both arriving and in both content and format to the Voice-ATIS
aircraft; or broadcast.
d) two broadcasts serving aniving and departing aircraft 4.3.5.1.1 Where real-time meteorological information is
respectively at those aerodromes where the length of a included but the data remains within the of the
serving arriving and aircraft significant change criteria, the content, for the purpose
would be excessively long. of maintaining the same designator, shall be considered
identical.
4.3.4.2 A discrete VHF frequency shall, whenever
practicable, be used for Voice-ATIS broadcasts. If a discrete Note.- Significant change criteria are specped in 2.3.2 of
frequency is not available, the transmission may be made on ~ ~3 to A~, , , , ~3~. ~ d k
the voice channel(s) of the most appropriate terminal navigation
aid(s), preferably a VOR, provided the range and 4.3.5.2 Where a D-ATIS supplements the existing
readability are adequate and the identification of the navi- availability of Voice-ATIS and the ATIS rquireS updating,
gation aid is sequenced with the broadcast so that the latter is Voice-ATIS and D-ATIS shall be updated simultaneously.
not obliterated.
Note.- Guidance material relating to D-ATIS is contained
4.3.4.3 Voice-ATIS broadcasts shall not be transmitted on in ,h, ~~~~l of ~i~~ ~servic~es Datfa Linki App~licatjon s
the voice channel of an ILS. (Doc 9694). The technical requirements for the D-ATIS
application are contained in Annex 10, Volume 111, Part I,
4.3.4.4 Whenever Voice-ATIS is provided, the broadcast Chapter 3.
shall be continuous and repetitive.
4.3.4.5 The information contained in the current broad- 4.3.6 Automatic terminal information
cast shall immediately be made known to the ATS unit(s) service (voice andlor data link)
concerned with the provision to aircraft of information relating
to approach, landing and take-off, whenever the message has 4.3.6.1 Whenever Voice-ATIS and/or D-ATIS is provided:
not been prepared by that (those) unit(s).
a) the information communicated shall relate to a single
Note.- The requirements for the provision of ATIS that aerodrome;
applies to both Voice-ATIS and D-ATIS are contained in 4.3.6
h"-rl-n-w.. . b) the information communicated shall be updated
immediately a significant change occurs;
4.3.4.6 Voice-ATIS broadcasts provided at designated
c) the preparation and dissemination of the ATIS message
aerodromes for use by international air services shall be
available in the English language as a minimum. shall be the responsibility of the air traffic services;
　
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