Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 4192

c) offset frequency simplex. *Single channel simplex. Simplex using the same frequency channel in each direction. 2. For use in aeronautical fixed service planning *Aeronautical fixed service (AFS). A telecommunication service between specified fixed points provided primarily for the safety of air navigation and for the regular, efficient and economical operation of air services. *Aeronautical fixed telecommunication network (AFTN). A worldwide system of aeronautical fixed circuits provided, 2007/70/II. szám Attachment A Annex 10 — Aeronautical Telecommunications ATT A-3 1/11/01 *Aeronautical station. A land station in the aeronautical mobile service. In certain instances, an aeronautical station may be placed on board a ship or an earth satellite. *Aircraft station. A mobile station in the aeronautical mobile service, other than a survival craft station, located on board an aircraft. *Air-ground communication. Two-way communication between aircraft and stations or locations on the surface of the earth. *Air-ground control radio station. An aeronautical telecommunication station having primary responsibility for handling communications pertaining to the operation and control of aircraft in a given area. *Air-to-ground communication. One-way communication from aircraft to stations or locations on the surface of the earth. *Alternative means of communication. A means of communication provided with equal status, and in addition to the primary means. General purpose system (GP). Air-ground radiotelephony facilities providing for all categories of traffic listed in 5.1.8. Note.— In this system communication is normally indirect, i.e. exchanged through the intermediary of a third person. *Ground-to-air communication. One-way communication from stations or locations on the surface of the earth to aircraft. *Non-network communications. Radiotelephony communications conducted by a station of the aeronautical mobile service, other than those conducted as part of a radiotelephony network. *Operational control communications. Communications required for the exercise of authority over the initiation, continuation, diversion or termination of a flight in the interest of the safety of the aircraft and the regularity and efficiency of a flight. Note.— Such communications are normally required for the exchange of messages between aircraft and aircraft operating agencies. “Pilot-controller” system. Air-ground radiotelephony facilities implemented primarily to provide a means of direct communication between pilots and controllers. *Primary means of communication. The means of communication to be adopted normally by aircraft and ground stations as a first choice where alternative means of communication exists. *Radiotelephony network. A group of radiotelephony aeronautical stations which operate on and guard frequencies from the same family and which support each other in a defined manner to ensure maximum dependability of airground communications and dissemination of air-ground traffic. *Regular station. A station selected from those forming an enroute air-ground radiotelephony network to communicate with or to intercept communications from aircraft in normal conditions. 2007/70/II. szám ANNEX 10 — VOLUME II ATT B-1 1/11/01 Attachment B to Volume II — GUIDANCE MATERIAL FOR THE TRANSMISSION OF LONG MESSAGES ON THE AFTN 1. Introduction The requirement for the transmission of separate messages over the AFTN when a text exceeding 1 800 characters is encountered is detailed in 4.4.5.7 and 4.4.15.3.11. When messages have to be divided into two or more parts, the following procedure should be applied. 2. Procedure Each message part should carry the same address and origin with the sequence of each part indicated on the last line of text as follows: (End of first message) / / END PART 01 / / (End of second message) / / END PART 02 / / (End of last message) / / END PART XX/XX / / Note.— The following example illustrates the application of the above procedure, for a three-part message. The message part sequence information is included in the text character count.

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