Doc 9718 an/957 Handbook on Radio Frequency Spectrum Requirements for Civil Aviation
-III.3.4 Chapter IV (Articles 15 and 16) —
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- ICAO POLICY ON CHAPTER IV
- 7-III.3.5 Chapter V (Articles 17 to 20) — Administrative provisions
- Section III — Formation of Call Signs 19.57
- Section VII — Special Provisions 19.127
- No.19.58
- ICAO POLICY ON CHAPTER V
- 7-III.3.6 Chapter VI (Articles 21 to 29) — Provisions for services and stations
- 7-III.3.7 Chapter VII (Articles 30 to 34) — Distress and safety communications
- Article 30 — General provisions Section III — Aeronautical Provisions 30.8
- ICAO POLICY ON CHAPTER VII
- 7-III.3.8 Chapter VIII (Articles 35 to 45) — Aeronautical services
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7-III.3.4 Chapter IV (Articles 15 and 16) — Interferences 7-III.3.4.1 This chapter on interferences is important in aeronautical terms. It prescribes the conditions under which stations must operate to avoid causing interference, the measures to be applied when interference is detected and the actions to be taken when a resolution cannot be obtained by normal bilateral coordinative actions. The necessary actions prescribed contain a strong emphasis on the importance of removing interference in the case where it occurs to a safety service (RR 15.36 and RR 15.37), or where distress frequencies are involved (RR 15.28). 7-III.3.4.2 It is noted that the procedures in the ITU Radio Regulations for clearing interference have no mandatory force, nor is there any procedure for the referral of disputes for arbitration. Thus, RR 15.22 mentions “goodwill and mutual assistance”, and as a final attempt, an administration may request the Radio Regulations Board to help (RR 15.41, RR 15.42 and Section 1 of Article 13). 7-III.3.4.3 Regulations of particular importance to aeronautical service in this chapter are reproduced below.
7-III.3.5 Chapter V (Articles 17 to 20) — Administrative provisions 7-III.3.5.1 Several administrative provisions contained in Articles 18 and 19 of this chapter are of interest to aviation (action may either involve the telecommunications or the aviation authority, or both). Radio Regulations 18.8 and 18.11 have been included at the request of aviation to regularize the licensing of aircraft on delivery from the manufacturer, and aircraft leased to a country other than the country of registry. Radio Regulation 19.10 is a dispensation from the normal rule that radio stations must transmit an identification at all times, and regularizes the ICAO Annex 10 practice with navaids where removal of the identification is an indication of malfunction. In ITU, the term “radiobeacon” has a wider significance than in aviation and can include all ground-based navaids. The most important of these Regulations are reproduced below:
7-III.3.5.2 Sections III and VII of Article 19 deal with the formation of call signs in the aeronautical service. The Regulations do not define the distinction between an identification and a call sign very clearly, and both are transmitted essentially to provide others with a means of determining the identity of a radio transmission. The usual interpretation is that identification is primarily required on transmissions by radio beacons for the purpose of identifying interference sources, while call signs have the added purpose of facilitating two-way communications. The greater majority of the requirements laid down in Section III relate to maritime services, with dispensations (as indicated below) in the case of aeronautical stations. To a large extent Annex 10 (Volume II) has been aligned with these Regulations.
7-III.3.6 Chapter VI (Articles 21 to 29) — Provisions for services and stations The Articles in this chapter address specific procedures and technical practices for radio services and stations that are essential for efficient and orderly operation and for efficient use of spectrum. One of the services of interest to aviation is detailed below. Article 28: Radiodetermination services Section 1 is general and is oriented towards the maritime service, which has no international document other than the Radio Regulations in which to prescribe obligatory requirements. Section II contains a provision dealing with the aeronautical radionavigation-satellite service (which has not yet received an allocation in the Table of Frequency Allocations). Section III deals with radio direction-finding stations. Such stations are no longer a standard feature in civil aviation on international services. However, where it applies, there is a dispensing regulation which permits aviation to use ICAO agreements as the rule. This is:
Section IV deals with radio beacons in a general way. Radio Regulations 28.23 and 28.24 include reference to Appendix 12 which designates field strength and protection requirements for aeronautical radio beacons. The parameters and values defined in Appendix 12 are those used by ICAO in the frequency assignment planning for aeronautical NDB. The text of these Regulations is:
7-III.3.7 Chapter VII (Articles 30 to 34) — Distress and safety communications Primarily, this chapter addresses the operational use of the global maritime distress and safety system (GMDSS) intended for ships in distress situations. However, aircraft are not precluded from using the system. Radio Regulation 30.9 provides the dispensation for aeronautical radio services to conform to the provisions in Annex 10 in any case where provisions of the Radio Regulations diverge from aeronautical practices. Regulations of relevance are:
Article 33: Operational procedures for urgency and safety communications in the global maritime distress and safety system (GMDSS) Medical transports are defined in the 1949 Geneva Convention and the definition is repeated in RR 33.19. They may be aircraft or ships involved in areas of armed conflict. Section III — Medical transports sets down the special identification measures, which include the use of secondary surveillance radar (SSR) for aircraft.
7-III.3.8 Chapter VIII (Articles 35 to 45) — Aeronautical services 7-III.3.8.1 This chapter deals exclusively with aeronautical matters and addresses licensing and regulatory aspects of allocations as well as service operational matters. These matters are applicable to all aircraft operations, whether for civil, national defence or governmental purposes. This chapter contains the following articles (with the type of regulation indicated in brackets): Article 35 Introduction Article 36 Authority of the person responsible for the station (operational) Article 37 Operator’s certificates (licensing) Article 38 Personnel (licensing) Article 39 Inspection of stations (licensing) Article 40 Working hours of stations (operational) Article 41 Communications with stations in the maritime services (regulatory) Article 42 Conditions to be observed by stations (regulatory) Article 43 Special rules relating to the use of frequencies (regulatory) Article 44 Order of priority of communications (operational) Article 45: General communication procedure (operational) Radio Regulation 35.1.1 recognizes, with the exception of Articles 36, 37, 39, 42, 43 and 44.2, the application of ICAO Annexes to civil aircraft provided their implementation does not cause harmful interference to the radio services of other countries. 7-III.3.8.2 Particular regulations of interest and importance in Chapter VIII are: Article 37: Operator’s certificates This important Article lays down the requirement for operator’s certificates to be issued for aircraft personnel in relation to the control and use of the radio as a transmitting device. The requirement is also reflected in Article 30 (b) of the ICAO Convention, and the requirements for the air safety aspects are laid down in Annexes 1 and 10. Several of the provisions in this Article take account of practices in civil aviation as specified in ICAO Annexes. Of relevance to aviation are: — RR 37.1 which requires that every aeronautical radio station be certified by an “operator holding a certificate issued or recognized by the government to which the station is subject”. The wording of this Regulation permits the certificate to be issued by the authority with responsibility for civil aviation. — RR 37.2 which provides a dispensation for the use of ICAO requirements in lieu of those in the Regulations in the aspects where ICAO has specified conditions, qualifications or other relevant material. The text of this Regulation is:
— RR 37.4 and RR 37.5 which permit administrations to decide if a certificate is necessary for frequencies above 30 MHz, but not on frequencies assigned for international use. — RR 37.14 which permits the issue of a restricted certificate in lieu of a general certificate where the frequencies used are from exclusive aeronautical bands, and operation of the equipment requires only the use of simple external switching devices. This applies to all HF and VHF radio equipment carried in modern civil aircraft. Article 42: Conditions to be observed by stations Of note in this Article is RR 42.4 which prohibits the operation of a broadcasting service by an aircraft station while over the sea. An associated RR 23.2 prohibits the establishment and use of broadcasting services outside national territory. Article 43: Special rules relating to the use of frequencies This Article lays down conditions of use for aeronautical frequencies. RR 43.1 is often referred to in an aeronautical mobile and aeronautical mobile-satellite context in ITU discussions. It distinguishes the civil aviation use of frequencies from other aircraft uses, notably national defence use (i.e. the (OR) service). The inclusion of the words “safety and regularity” has been a deliberate transfer from the ICAO Convention. The service definitions at RR 1.33 and RR 1.36 were inserted recently to consolidate the concept insofar as the Table of Frequency Allocations is concerned. RR 43.4 prohibiting public correspondence is of long-standing and still is applicable to AM(R)S and AM(OR)S services. There is no longer an exclusive allocation to the AMS(R)S.
Directory: safety -> acp -> repository acp -> Information paper acp -> Acp wgc6/WP24 aeronautical communications panel (acp) working group c meeting 6 Toulouse, France October 20-24, 2003 acp -> Joint meeting of the acp -> Working paper acp -> Amcp wgm/WP19 19 August 2002 Aeronautical Mobile Communication Panel (amcp) Working Group-m meeting Fifth Meeting Saint Petersburg, Russia, 19 to 23 August 2002 Agenda Item 4: satcom acp -> Acp wgf/16 wp 27 Rev. 1 International Civil Aviation Organization acp -> Working paper acp -> Working paper repository -> Doc 9718 an/957 Handbook on Radio Frequency Spectrum Requirements for Civil Aviation Download 1.54 Mb. Share with your friends:
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