ITU-R M 541-10-2015 Operational procedures for the use of digital selective-calling equipment in the maritime mobile service《海上移动业务中使用的数字选择呼叫设备的操作程序》.pdf
《ITU-R M 541-10-2015 Operational procedures for the use of digital selective-calling equipment in the maritime mobile service《海上移动业务中使用的数字选择呼叫设备的操作程序》.pdf》由会员分享,可在线阅读,更多相关《ITU-R M 541-10-2015 Operational procedures for the use of digital selective-calling equipment in the maritime mobile service《海上移动业务中使用的数字选择呼叫设备的操作程序》.pdf(31页珍藏版)》请在麦多课文档分享上搜索。
1、 Recommendation ITU-R M.541-10 (10/2015) Operational procedures for the use of digital selective-calling equipment in the maritime mobile service M Series Mobile, radiodetermination, amateur and related satellite services ii Rec. ITU-R M.541-10 Foreword The role of the Radiocommunication Sector is t
2、o ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functio
3、ns of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referen
4、ced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU
5、-R patent information database can also be found. Series of ITU-R Recommendations (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting serv
6、ice (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and
7、 fixed service systems SM Spectrum management SNG Satellite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 20
8、15 ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.541-10 1 RECOMMENDATION ITU-R M.541-10* Operational procedures for the use of digital selective-calling equipment in the maritime mobile service (1
9、978-1982-1986-1990-1992-1994-1995-1996-1997-2004-2015) Scope The Recommendation contains the operational procedures for digital selective-calling (DSC) equipment whose technical characteristics are given in Recommendation ITU-R M.493. The Recommendation contains six annexes. In Annexes 1 and 2 the p
10、rovisions and procedures are described for distress, urgency and safety calls and for routine calls, respectively. In Annexes 3, 4 and 5 the operational procedures for ships, for coast stations and Man overboard devices are described and Annex 6 lists the frequencies to be used for DSC. Keywords Dig
11、ital selective-calling, equipment, operational procedures, GMDSS, distress alert Abbreviations/Glossary BQ End of sequence for an acknowledge message CS Coast station DSC Digital selective calling EOS End of sequence FEC Forward error correction kHz Kilohertz GMDSS Global maritime distress and safet
12、y system HF High frequency MF Medium frequency MHz Megahertz MOB Man overboard NBDP Narrowband direct-printing RCC Rescue coordination centre RQ End of sequence acknowledge required RR Radio Regulations SOLAS International convention for the safety of life at sea UTC Coordinated universal time VHF V
13、ery high frequency * This Recommendation should be brought to the attention of the International Maritime Organization (IMO) and the ITU Telecommunication Standardization Sector (ITU-T). 2 Rec. ITU-R M.541-10 The ITU Radiocommunication Assembly, considering a) that digital selective-calling (DSC) wi
14、ll be used as described in Recommendation ITU-R M.493; b) that the requirements of Chapter IV of the International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended, for the global maritime distress and safety system (GMDSS) are based on the use of DSC for distress alerting and call
15、ing and that operational procedures are necessary for the use of that system; c) that, as far as is practicable, operational procedures in all frequency bands and for all types of communications should be similar; d) that DSC provides the primary means of transmitting a distress alert. Provisions of
16、 transmitting a distress alert by other methods and procedures are described in the Radio Regulations (RR); e) that conditions when alarms have to be actuated should be specified, recommends 1 that the technical characteristics of equipment used for DSC in the maritime mobile service should be in co
17、nformity with the relevant ITU-R Recommendations; 2 that the operational procedures to be observed in the MF, HF and VHF bands for DSC should be in accordance with Annex 1 for distress, urgency and safety calls and Annex 2 for other calls; 3 that provisions should be made at stations equipped for DS
18、C for: 3.1 the manual entry of address, type of call, category and various messages into a DSC sequence; 3.2 displaying the information in a user readable format; 3.3 the verification and if necessary the correction of such manually formed sequences; 3.4 automatically set the information when possib
19、le; 3.5 a specific aural alarm and visual indication to indicate receipt of a distress or urgency call or a call having distress category. It should not be possible to disable this alarm and indication. Provisions should be made to ensure that they can be reset only manually; 3.6 aural alarm(s) and
20、visual indication for calls other than distress and urgency. The aural alarm(s) may be capable of being disabled; 3.7 such visual indicators to indicate: 3.7.1 type of received call address (to all stations, to a group of stations, geographical, individual); 3.7.2 category; 3.7.3 identity of calling
21、 station; 3.7.4 numerical or alpha-numerical type of information, e.g. frequency information and telecommand; 3.7.5 type of “end of sequence” character; 3.7.6 detection of errors, if any; 4 that the equipment should be simple to operate; Rec. ITU-R M.541-10 3 5 that the operational procedures given
22、in Annexes 3, 4 and 5, which are based on the relevant procedures from RR Chapter VII, Articles 30, 31, 32 and 33, be used as guidance for ships and coast stations; 6 that the frequencies used for distress and safety purposes using DSC are those contained in Annex 6 to this Recommendation (see RR Ap
23、pendix 15). NOTE 1 The following definitions are used throughout this Recommendation: Single frequency: the same frequency is used for transmission and reception. Paired frequencies: frequencies which are associated in pairs; each pair consisting of one transmitting and one receiving frequency. Inte
24、rnational DSC frequencies: those frequencies designated in the RR for exclusive use for DSC on an international basis. National DSC frequencies: those frequencies assigned to individual coast stations or a group of stations on which DSC is permitted (this may include working frequencies as well as c
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