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Contenido:

"Marine radio, e-mail, satellite and internet services"

Sailing away from your home shores and discovering the enviable lifetyle of ocean cruising is a popular dream that often depends on keeping in touch with business contacts, banks, friends and family ashore.

This book steps beyond basic marine radio instruction and examines the international marine use of cell phones, satellites, amateur radio and e-mail. It reviews a wide range of systems and services, explains basic installation details, and points out pitfalls for the unwary.

- Cuts through the minefield of sales hype and jargon, enabling you to make a rational choice from the wealth of products available.
- Covers radio basics and licensing through to data transfer, weatherfax and satellite imaging, plus much more.
- Includes GMDSS distress and safety procedures and Inmarsat services.
- Provides essential background to both official and unofficial marine communication systems, including amateur radio, Globalstar, Iridium, cell phones and CB.
- Explains techniques for sending pictures over HF radio and making best use of low bandwidth internet connections for e-mail and file transfers
- Explains YOTREPS: a free internet position reporting and plotting scheme.
- Contains comprehensive appendices on radio procedure, frequencies and weather broadcast times, providing information not available from any other single source.
- Provides remedies for noisy computers and radio interference.



Índice:

Preface
Acknowledgements
Terms and abbreviations

PART 1

CHAPTER 1. RADIO BASICS
Frequencies and wavelengths
The radio spectrum
Modulation
Propagation of different frequencies

CHAPTER 2. VHF, HF AND MF: MAINSTAYS OF MARINE COMMUNICATIONS
Licensing requirements:
- Radio operator qualifications and authorisation
- Ship radio licence
Marine VHF radio equipment; channels, effective range and the "capture" effect
Marine MF and HF radio equipment

CHAPTER 3. GMDSS. THE GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM
Distress and safety communications before GMDSS
Digital Selective Calling (DSC)
Inmarsat satellite communications
Navtex
Emergency Position Indicating Radio Beacons (EPIRBs)
Search and Rescue Radar Transponders (SARTs)
Handheld VHF sets
Narrow Band Direct Printing (NBDP) telex
GMDSS: strengths and weaknesses

CHAPTER 4. AMATEUR RADIO
Amateur radio resources: nets, slow scan television, phone patches, e-mail
Amateur radio in an emergency
Amateur radio without a licence
Obtaining a licence outside your home country
Reciprocal licences

CHAPTER 5. COMMUNICATIONS ALTERNATIVES
Citizen Band (CB) radio
Family Radio Service
Cellular phones
Mobile satellite communications: Globalstar, Iridium, Inmarsat Mini-M, Inmarsat Fleet F77 and F55

CHAPTER 6. EQUIPMENT INSTALLATION - DEMANDS MADE ON THE BOAT
Finding the power
Power for permanently installed equipment
Finding the energy
Radio interference
Protection against lightning
HF transceiver installation

CHAPTER 7. MARINE ANTENNAS
Basic ideas
Practical MF/HF antennas
Practical VHF antennas

CHAPTER 8. COMPUTER MODES
Decoding data transmissions
Software decoders: weatherfax, polar orbiting satellite images, slow scan television, Navtex, TOR (Telex on Radio) codes.
Hardware data controllers and software

CHAPTER 9. E-MAIL AND THE INTERNET
HF e-mail services
FTPmail - web access by e-mail
YOTREPS passage reports
Full internet access

PART 2

1. PROCEDURES, PROTOCOLS AND CODES
Non-GMDSS Distress, Urgency and Safety Requesting assistance
Simple form of Salvage Agreement
Reporting marine weather
The standard phonetic alphabet and numerals
Morse code
Extracts from the international Q code
Telex codes and abbreviations
The RST code
Maritime Mobile Service Identifiers (MMSI)

2. FREQUENCY ALLOCATIONS
Marine MF/HF - SSB channels and frequencies
SSB simplex frequencies for ship to ship contacts
Marine VHF - channels and frequencies
Navtex stations and times of operation
Inmarsat-C SafetyNET broadcast times
MF, HF and VHF amateur frequencies
Amateur nets
International short wave broadcasts
USA Family Radio channels and frequencies

3. TECHNICAL DATA
Radio transmission modes
Radio time signals and solar data
Battery data
Characteristics of common types of coax cable
The decibel (dB) scale

4. FURTHER INFORMATION
Book list
Internet resources

Index