zxc ® 17-Dec-2014 22:45

An introduction to GMDSS


Year: 1999
Language: english
Author: Jahn M. Olsen, Tor R. Kristensen
Publisher: POSEIDON
Format: PDF
Quality: Scanned pages text layer
Pages count: 226
Description: Work on the development of a new global system for distress and safety communications was initiated ten years ago by IMO, the International Maritime Organization.
The reasons for developing a new system Were, amongst other things:
a) The inadequacy of existing distress and safety systems
b) Modem technology was already being used to increase the efficiency of commercial traffic, while distress and safety communications were still using old technology and old-fashioned systems.
The subsequent process of development resulted in the Global Maritime Distress and Safety System (GMDSS), which the shipping industry was able to put into use on February 1, 1992.
Objectives
The purpose of this book is to provide a theoretical description of, and thereby knowledge about, the basic features of the Maritime Mobile Services and the Maritime Mobile Satellite Services.
The object is also to meet the requirements made in the “Examination Syllabus for General Operator’s Certificate (GOC)” issued by the CEPT RR Project Team, which provides a detailed overview of the theoretical skills which must be attained by students during a GMDSS/GOC training course.
The book provides an introduction to each individual system used on board vessels equipped in accordance with GMDSS requirements.
Furthermore, it seeks to point out to users of GMDSS equipment the vital importance of understanding the limitations and possibilities of the different systems with regard to range and coverage.
You will not find all the answers in “An Introduction to GMDSS”, but using the book together with equipment manuals and ITU publications should enable you to deal with most of the problems that will arise during a GMDSS course.
Intended Audience
This book is intended for a wide range of readers interested in maritime radio communications, such as:
Navigators and radio officers requiring the certification provided by an additional GMDSS course
Students finishing off a navigational education with a GMDSS training course POSEIDON: 1999. Unauthorised photocopying or reproduction prohibited, 9
GMDSS instructors at navigational colleges and training centres
The book is also intended to be used as a teaching aid at GMDSS training centres and navigational academies.
The Contents of the Book
We have sought to build up the contents of this book by following a natural progression involving separate chapters concluded by relevant exercises which allow students to check up on the most important points of the subjects dealt with in each chapter.
The book is suitable for self-tuition and should be read prior to taking a GMDSS training course. In our experience, preliminary studies will substantially increase understanding of the various GMDSS systems, thereby increasing the benefit of the GMDSS course.
Acknowledgements
We would like to thank the International Maritime Organization, Inmarsat, and the COSPAS/Sarsat Secretariat for their kind permission to reproduce several of their illustrations in this book. We also wish to thank the producers of GMDSS equipment for allowing the use and reproduction of illustrations used in their brochures and data sheets.
Finally, readers are invited to provide us with feedback regarding the contents of this book in order that we might achieve the best possible GMDSS system description.

Contents

Contents
Preface
Page 9
CHAPTER 1
THE GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM.... Page 11
1 Introduction..............Page 11
12 Means of Communication - definitionsPage 12
13 GMDSS system configurationPage 13
1.4 GMDSS Implementation Schedule........Page 14
1.5 GMDSS - functional requirements.......Page 14
1.6 GMDSS ships - radio watch...Page 15
1.7 Basic equipment - minimum requirements...........Page 16
1.8 Maintenance requirements for GMDSS equipment............Page 21
1.9 The GMDSS Master Plan.......Page 21
1.10 EXERCISES - GMDSS.........Page 23
CHAPTER 2
SHIP ANTENNAS Paoe 25
21 General InformationPage 25
2.2 Radio waves..............Page 26
23 Antenna length and resonance frequency..............Page 26
2.4 Radio wavelengths and frequencies......Page 28
2.5 Unit of measurement: Hertz (Hz)...........Page 28
2.6 Table of wavelengths..............Page 30
2.7 Propagation of Radio Waves..Page 31
2.9 MF...........Page 33
230 HF.............Page 34
2 Inmarsat-A/B antennas.............Page 35
232 Inmarsat-C antennas..Page 36
213 Simplex transmissionPage 37
2.14 Dulex transmission age .3
2.15 Antenna maintenance..............Page 37
236 EXERCISES -ANTENNAS..Page43
CHAPTER 3
REGULATIONS AND TRAFFIC PROCEDURES--------------------Page 45
3a2 Radio Surveys and Radio Safety Certificates..........Page 45
33 Operation of the ship station - operator certificates...............Page 45
3 A Observance of Secrecy..............Page 46
3.5 Priority for distress calls, distress messages and other messages concerning
the safety of lives at sea..............Page 46
3.6 Unauthorised transmissions......Page 46
3.7 Control and adjustment of radio transmitters..........Page 46
3.8 Service documents.....Page 46
330 Radio Telephony Communications - Calling Procedures......Page 47
3.11 MF radio telephony (coast telephony)..Page 51
3.12 The international distress and calling frequency 2182 kHz..Page 51
333 General calling procedures...........v....Page 51
3.14 HF telephony..............Page 52
3.15 Traffic lists.Page 53
An Introduction to GMDSS
CHAPTER 4
DISTRESS SIGNALS AND DISTRESS TRAFFIC____________Page 55
4.1 Introduction..Page 55
4.2 General regulations....Page 55
4.3 The international distress and calling frequency 2182 kHz....Page 56
4.4 Silence periods............Page 56
4.5 The radiotelephony alarm signal..............Page 56
4.6 The distress signal - MAYDAY...Page 57
4.7 The distress call...........Page 57
4.8 The distress message..Page 57
4.9 Acknowledgement of receipt of a distress message.Page 57
4.10 Distress traffic.............Page 58
4.11 Transmission of a distress message by a station not itself in distress.......Page 59
CHAPTER 5
URGENCY TRANSMISSIONS
5.1 Urgency signal
CHAPTER 6
SAFETY TRANSMISSIONS
Page 63
6.1 Safety signals and messages......Page 63
6.2 Medical advice - MEDICO........Page 64
6.3 Exercises: Regulations and Traffic Procedures.......Page 65
6.4 Exercises - Distress, Urgency and Safety Traffic.....Page 65
CHAPTER 7
DSC - DIGITAL SELECTIVE CALLING____________________Page 67
7.1 Background..Page 67
7.2 DSC............
7.3 The Individual Elements of the DSC Call...............
7.4 DSC routine cal 1 —.—.......
7.5 Selective calling numbers in GMDSS......
CHAPTER 8
DSC PROCEDURES FOR VHF - MF AND HF............Page 73
Introduction......Page 73
8.1 Distress.........Page 73
8.2 Urgency........Page 76
8.3 SPage
8.4 Public Correspondence...............Page 78
8.5 Testing the equipment used for distress and safety.Page 80
8.6 Special conditions and procedures for DSC communication on HF......Page 80
8.7 EXERCISES - DSC OPERATIONAL PROCEDURES..........Page 86
CHAPTER 9
INMARSAT Page 87
9.1 Introduction.Page 87
9.2 A General Overview..Page 88
9.3 The space segment.....Page 88
9.4 Coast Earth Stations (CES).......Page 89
9.5 Network Co-ordinating Station (NCS)......Page 90
9.6 Ship Earth Station (SES)............Page 90
9.7 Inmarsat Mobile Number...........Page 91
9 . 8 Inmarsat Commis s ionin g.....Page 9 2
9.9 Inmarsat system comparisons....Page 93
9. 10 EXERCISES - INMARSAT.......Page 94
CHAPTER 10
INMARSAT-A
10.1 Communication services - Inmarsat-A
10.2 Inmarsat-A SES equipment..
10.3 Antenna direc tion/tracking...
10.4 The Ship's Plotted Position..
10.5 The Ship's heading (Gyro course)........
10.6 Azimuth angle........
10.7 Elevation angle....
10.8 Elevation angle map.............
10.9 Azimuth angle map ..............
10.10 Distress Communication.......
10.11 Distress priority......
10.12 How to send a Distress call by telex or telephone...............
10.13 Urgency and Safety priority..
10.14 Making a telephone call........
10.15 Sending a telex.......
10.16 Making a fax or data call......
10.17 Inmarsat Service Partners and Access Codes.......
10.18 EXERCISES - INMARSAT-A..............
CHAPTER 11
INMARSAT-C......
111 Introduction .hL.L...^L.....,........,n.
11 . 2 S y stem operat ion.......
11.3 1 nm aTsat'C Eq uipment.............
11.4 The Inmarsat-C system.............
11,5. Inmarsat Mobile Number (IMN)..............
11 6 The Tnmarsat-C Communication services...............
11.7 Accessing different networks using an Inmarsat-C SES........
11.8 EXERCISES - INMARSAT-C.
CHAPTER 12
INMARSAT-M/B.........
12.1 Introduction.....
12.2 Basic system architecture.
1 ,3 stem cratit^n
12,4 Single and Multi-channel Inmarsat M and B SESs.........
125 T nmarsat M/B numbering scheme.....
126.1 Sending a DISTRESS message by telex using an Inmarsat-B SES .
12.71 Making a telephone call....
12.8 EXERCISES - INMARSAT-M/B...
CHAPTER 13
TELEX OVER RADIO........
13.1 Background......
13 The !3^^stern
13.3 The Modem......
13 A Modulation.......
13.5 ARQ ..............
13.6 FEC...
13.7 Maritex.............
13.8 EXERCISES.....
CHAPTER 14
MARITIME SAFETY INFORMATION UNDER THE GMDSS .. Page 137
14.2 The Navtex System.......
14.4 Navarea 1
14.5 Building up a N avtex Me s s age......
14.6 Examples of Navtex Messages........
14.7 National Navtex service.....Page 142
14t8 The Navtex receiver...........Page 142
14t9 EGC - Enhanced Group Call..............Page 142
14 J 0 SafetyNET broadcast messages........Page 144
14.11 Availability of MSI in different NAVAREAS/METAREAS............Page 144
14.12 Reception of EGC messages - operating your EGC receiver...........Page 148
14.13 EGC - message examples...Page 151
14.14 High frequency (HE) MSI..Page 153
14.15 EXERCISES - NAVTEX, EGC.......Page 157
CHAPTER 15
EMERGENCY RADIO BEACONS
15.1 General Information........
15.2 Different types of radio beacons.....
15.3 Basic Concepts of the COSPAS/SARSAT System........
15.4 Facts about COSPAS/SARSAT as of December 1997...
15.5 The COSPAS/SARSAT Beacon......
15.6 VHF emergency beacons for manual activation.............
15.7 The inmarsat-E EP1RB.....
15.8 VHF Emergency Beacon (VHF beacon).........
CHAPTER 16
SART - SEARCH AND RESCUE TRANSPONDERS - PORTABLE VHF TRANSCEIVERS____________
Background...............
Categories of SART ..
Test procedure..........
Specifications.........
Labels and marking...............
Portable VHF Transceivers...
VHF Emergency Communication Sets .
EXERCISES - EP1RB, SART, PORTABLE VHF TRANSCEIVERS
CHAPTER 17
POWER SUPPLIES
17.1 Radio batteries.......
Lead batteries........
Ni-Fe batteries.......
Ni-Cd batteries.............
UPS (Uninterrupted Power Supply)....Page 180
Capacity requirements..........Page 181
EXERCISES - POWER SUPPLIES...Page 183
An Introduction to GMDSS
CHAPTER 18
MARITIME MOBILE TRAFFIC CHARGES Pa3e 185
18.1 Radio telephone calls...........Page 185
18-2 Charges for radio telephone calls........Page 185
18.3 Radiotelegrams......Page 186
18.4 Keeping a Radio Log...........Page 188
18.5 Radio telex on the MF and HF bands..Page 188
18.6 Telephone and telex via Inmarsat-A/B...............Page 189
18.7 Inmarsat-C Charges.............Page 191
18.8 EXERCISES - CHARGES..Page 195
CHAPTER 19
FALSE ALERTS IN THE GMDSS
Page 197
General Information
INMARSAT-C EPIRB............
Guidelines for avoiding false distress alerts.
Instructions for mariners and others for cancelling a false distress alert....
EXERCISES - FALSE ALERTS IN THE GMDSS
CHAPTER 20
THE ROLE OF THE RCC IN THE GMDSS..............Page 205
THE 1974 SOLAS CONVENTION..............
THE GMDSS SYSTEM
RCC’s - MRCC’s - SAR CO-ORDINATION..............
Action by the first RCC on receipt of distress alert...........
A genuine rescue operation.
RCC/MRCC in the Nordic countries..
EXERCISES - THE ROLE OF THE RCC IN THE GMDSS..........
Page 205 Page 205 Page 206 Page 208 Page 208 Page 210 Page 212
APPENDIX 1 4 Page 213
Elementary Fault Localisation and Repairs..........Page 213
APPENDIX 2.............Page 215
ITU Publications - Admiralty List of Radio Signals...Page 215
APPENDIX 3___Page 220
ABBREVIATIONSPage 220
APPENDIX 4 M4I4 44 44 44 44 44 Page 222
Overview of GMDSS frequencies.........Page 222
REFERENCES

Screenshots

Rating: 4.9 / 5 (Votes: 19)
Reply
Similar releases
Australian GMDSS Handbook - Australian Maritime Safety Authority (AMSA) [2018, PDF]
Crude oil tanker "British Kestrel" Bridge manual- Worldwide Marine Technology ltd., UK-…
Furuno Felcom 18 Inmarsat-C Operators Manual - Furuno [2012, PDF]
General operator’s certificate for the GMDSS (Model Course 1.25) - IMO [2014, PDF]
GMDSS A User's Handbook - Denise Brehaut [2017, PDF]
GMDSS Manual - IMO [2017, PDF]
GMDSS Students Handbook - Gorelikov N. [2002, PDF]
Implementing e-Navigation - John Erik Hagen [2017, PDF]
ITU List IV List of Coast Stations and Special Service Stations - ITU [2017, PDF+CD]
LNG Methane Nile Eagle Manuals ( BRIDGE+CARGO+MACHINERY) - SAMSUNG (SHI), ERMO83 [2006, PDF]
  • Reply

The time now is: Today 07:10

All times are GMT + 3 Hours