| Mob-87 |
CHAPTER N IX
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| Mob-87 |
Distress and Safety Communications1 for the GMDSS
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| Mob-87 |
ARTICLE N 37
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General Provisions |
| N 2929 Mob-87 |
� 1. This Chapter contains the provisions for the operational use of the Global Maritime Distress and Safety System (GMDSS). |
| N 2930 Mob-87 |
� 2. The provisions specified in this Chapter are obligatory (see Resolution 331 (Mob-87)) in the maritime mobile service for all stations using the frequencies and techniques prescribed for the functions set out herein (see also No. N 2932). Certain provisions of this Chapter are also applicable to the aeronautical mobile service except in the case of special arrangements between the governments concerned. However, stations of the maritime mobile service, when fitted with equipment used by stations operating in conformity with Chapter IX, shall comply with the appropriate provisions of that Chapter (see No.2945). |
| C.NIX Mob-87 |
1) For the purposes of this Chapter, distress and safety communications include distress. urgency and safety calls and messages. |
| N 2931 Mob-87 |
� 3. The procedure specified in this Chapter is obligatory in the maritime mobile-satellite service and for communications between stations on board aircraft and stations of the maritime mobile-satellite service, wherever this service or stations of this service are specifically mentioned. |
| N 2932 Mob-87 |
� 4. The International Convention for the Safety of Life at Sea, SOLAS, 1974, prescribes which ships and which of their survival craft shall be provided with radio equipment, and which ships shall carry portable radio equipment for use in survival craft. It also prescribes the requirements which shall be met by such equipment. |
| N 2933 Mob-87 |
� 5. Stations of the land mobile service in uninhabited, sparsely populated or remote areas may, for distress and safety purposes, use the frequencies provided for in this Chapter. |
| N 2934 Mob-87 |
� 6. The procedure specified in this Chapter is obligatory for stations of the land mobile service when using frequencies provided in these Regulations for distress and safety communications. |
| N 2935 Mob-87 |
� 7. (1) No provision of these Regulations prevents the use by a mobile station or a mobile earth station in distress of any means at its disposal to attract attention, make known its position, and obtain help. |
| N 2936 Mob-87 |
(2) No provision of these Regulations prevents the use by stations on board aircraft or ships engaged in search and rescue operations, in exceptional circumstances, of any means at their disposal to assist a mobile station or a mobile earth station in distress. |
| N 2937 Mob-87 |
(3) No provision of these Regulations prevents the use by a land station or coast earth station, in exceptional circumstances, of any means at its disposal to assist a mobile station or a mobile earth station in distress (see also No.959). |
| N 2938 Mob-87 |
� 8. Ship earth stations located at Rescue Co-ordination Centres1 may be authorised by an administration to communicate for distress and safety purposes with any other station using bands allocated to the maritime mobile-satellite service, when special circumstances make it essential, notwithstanding the methods of working provided for in these Regulations. |
| N 2939 Mob-87 |
� 9. Transmissions by radiotelephony shall be made slowly and distinctly, each word being clearly pronounced to facilitate transcription. |
| N 2940 Mob-87 |
� 10. Distress, urgency and safety transmissions may also be made, using Morse telegraphy and radiotelephony techniques, in accordance with the provisions of Chapter IX and relevant CCIR Recommendations. |
| N 2941 Mob-87 |
� 11. The abbreviations and signals of Appendix 14 and the Phonetic Alphabet and Figure Code in Appendix 24 should be used where applicable2. |
| N 2938.1 Mob-87 |
1) The term "Rescue Co-ordination Centre", as defined in the International Convention on Maritime Search and Rescue, 1979, refers to a unit responsible for promoting the efficient organisation of search and rescue services and for co-ordinating the conduct of search and rescue operations within a search and rescue region. |
| N 2941.1 Mob-87 |
2) The use of the Standard Marine Navigational Vocabulary and, where language difficulties exist, the International Code of Signals, both published by the International Maritime Organisation (IMO), is also recommended. |
| N 2942 Mob-87 |
� 12. (1) Mobile stations1 of the maritime mobile service may communicate, for safety purposes, with stations of the aeronautical mobile service. Such communications shall normally be made on the frequencies authorised, and under the conditions specified in Section I of Article N 38 (see also No. N 2935). |
| N 2943 Mob-87 |
(2) Mobile stations of the aeronautical mobile service may communicate, for distress and safety purposes, with stations of the maritime mobile service in conformity with the provisions of this Chapter . |
| N 2944 Mob-87 |
� 13. Any station on board an aircraft required by national or international regulations to communicate for distress, urgency or safety purposes with stations of the maritime mobile service that comply with the provisions of this Chapter, shall be capable of transmitting and receiving class J3E emissions when using the carrier frequency 2182 kHz, or class J3E emissions when using the carrier frequency 4 125 kHz, or class G3E emissions when using the frequency 156.8 MHz and, optionally, the frequency 156.3 MHz. |
| N 2945 to N 2966 |
Not allocated. |
| N 2942.1 Mob-87 |
1) Mobile stations communicating with the stations of the aeronautical mobile (R) service in bands allocated to the aeronautical mobile (R) service shall conform to the provisions of the Regulations which relate to that service and, as appropriate, to any special arrangements between the governments concerned by which the aeronautical mobile (R) service is regulated. |
