Communications Flashcards
What language should be used for air ground radiotelephony communication?
The air ground radiotelephony communications shall be conducted in the language normally used by the station on the ground or in the English language.
What is the rule regarding availability of English language?
The English language shall be available, on request from any aircraft station, at all stations on the ground serving designated airports and routes used by international air services.
Where can information on language availability at a given station be found?
The languages available at a given station on the ground shall form part of the aeronautical information publications and other published aeronautical information concerning such facilities.
How shall numbers be transmitted in radiotelephony?
All numbers, except numbers used in the transmission of altitude, cloud height, visibility and runway visible range information shall be transmitted by pronouncing each digit separately.
The previously listed information shall be transmitted by pronouncing each digit in the number of hundreds or thousands followed by hundred or thousand as appropriate.
Numbers containing a decimal point shall be transmitted with the decimal point in the appropriate sequence being indicated by the word decimal.
How should time be transmitted in radiotelephony?
PANS - when transmitting time, only the minutes of the hour should normally be required. Each digit should be pronounced separately. However, the hour should be included when any possibility of confusion is likely to result.
What are the rules regarding change in type of radiotelephony call sign by an aircraft?
An aircraft shall not change the type of its radiotelephony call sign during flight, except temporarily on the instruction of the ATC unit in the interests of safety
At what points shall transmissions not be directed at aircraft?
Except for reasons of safety no transmission shall be directed to an aircraft during take off, during the last part of the final approach or during the landing roll.
What is distress and urgency traffic?
Distress and urgency traffic shall comprise all radiotelephony messages relative to the distress and urgency conditions respectively. Distress and urgency conditions are defines as:
Distress: a condition of being threatened by serious and or imminent danger and of requiring immediate assistance.
Urgency: a condition concerning the safety of an aircraft or other vehicle, or of some person on board or within sight, but which does not require immediate assistance.
What are the restrictions on radiotelephony distress and urgency messages by the originator?
The originator of messages addressed to an aircraft in distress or urgency condition shall restrict to the minimum the number and volume and content of such messages as required by the condition.
How shall data link messages be composed?
The text of messages shall be composed in standard messaeg format, in plain language or in abbreviations and codes.
When shall plain language be avoided in composing data link messages?
Plain language shall be avoided when the length of text can be reduces using appropriate abbreviations and codes.
What should an aircraft use when establishing communications?
When establishing communications, an aircraft should use the full call sign of both the aircraft and the aeronautical station.
What is the rule pertaining to superfluous transmissions?
Each state shall ensure that there is no willful transmission of unnecessary or
anonymous signals, messages or data by a station with the state.
What is the rule pertaining to the establishment of radio
telecommunications?
a. All stations shall answer calls directed to them by other stations in the
aeronautical telecommunication service and shall exchange communications on
request.
b. All stations shall radiate the minimum power necessary to ensure satisfactory
services.
What form should a test transmission follow?
The identification of the aeronautical station being called.
b. The aircraft identification
c. The words “radio check”
d. The frequency being used.
List five categories of messages handled by the aeronautical fixed telecommunication network (AFTN).
1) Distress Messages
2) Urgency Messages
3) Flight Safety Messages
4) Meteorological Messages
5) Flight regularity Messages
6) Aeronautical Information Services Messages
7) Aeronautical administrative messages
8) Service messages
How shall the international aeronautical telecommunication service be divided?
The international aeronautical telecommunication service shall be divided into four parts:
1) aeronautical fixed service
2) aeronautical mobile service
3) aeronautical radio navigation service
4) aeronautical broadcasting service
What is the ule pertaining to the protection of aeronautical telecommunication stations?
All aeronautical telecommunication stations, including end systems and intermediate systems of the aeronautical telecommunication network (AFTN), shall be protected from unauthorized direct or remote access.
What shall the competent authority do inregard to to change in normal hours of service?
Whenever necessary and practicable , the Competent Authority shall give notification of any change in the normal hours of service, before such a change is effected, to the aeronautical telecommunication agencies designated to receive this information by other Administrations concerned. Such changes shall also, whenever necessary, be promulgated in NOTAM.
Who designates the authority responsible for ensuring that the international telecommunications service is conducted in accordance with annex 10?
Each state shall designate the authority responsible for ensuring that the international telecommunications service is conducted in accordance with the procedures of this Annex(10).
What shall be done when a state commits serious and repeated infringements?
When a state commits serious or repeated infringements, representations relating to them shall be made to the authority designated in 2.4.1 of the state to which the situation belongs by the authority which detects them.
rule pertaining to maintenance of a telecommunication log
A telecommunication log, written or automatic, shall be maintained in each station of the aeronautical telecommunication service except that an aircraft station, when using radiotelephony in direct communication with an aeronautical station, need not maintain a telecommunication log.
What is the purpose of a telecommunication log?
The telecommunication log will serve as a protection, should the operator’s watch activities be investigated. it may be required as legal evidence.
When should Aeronautical stations record messages?
Recommendation - Aeronautical stations should record messages at the time of their receipt, except that, if during an emergency the continued manual recording would result in delays in communication, the recording of messages may be temporarily interrupted and completed at the earliest oppurtunity.
Who shall make entries in written logs?
In written logs, entries shall be made only by operators on duty except that other persons having knowledge of facts pertinent to the entries may certify in the log the accuracy of operators’ entries.
How shall entries in written logs be?
All entries shall be complete, clear, correct and intelligible. Superfluous marks or notations shall not be made in the log.
Who makes corrections in written logs and how shall they be made?
In written logs, any necessary correction in the log shall be made only by the person making the initial entry. The correction shall be accomplished by drawing or typing a single line through the incorrect entry, initialling same, recording the time and date of correction. The correct entry shall be made on the next line after the last entry.
How long shall telecommunications logs be retained?
Telecommunication logs, written or automatic shall be retained for a period of at least thirty days. When logs are pertinent to inquiries or investigations they shall be retained for longer periods until it is evident that they will be no longer required.
List some information that shall be entered in written logs.
The following information shall be entered in written logs:
a) the name of the agency operating the station;
b) the identification of the station
c) the date;
d) the time of opening and closing the station;
e) the signature of each operator, with the time the operator assumes and relinquishes a watch;
f) the frequencies being guarded and type of watch (continuous or scheduled) being maintained on each frequency;
g) ……
What is the rule pertaining to answering calls?
All stations shall answer calls directed to them by other stations in the aeronautical telecommunication service and shall exhcange communicaitons upon request.
