This is the first book to cover the Global Marine Distress and Safety System (GDMSS) in a comprehensive and readable way. GDMSS is now being developed to provide a new global communications and locating network to alert search and rescue services, and all students of navigation or maritime technology, and practising navigation officers, will need to be trained in its use.
This accessible reference textbook provides students and new radio operators with all the knowledge necessary for a complete understanding of GMDSS and its related systems.
Part 1: The Global Marine Distress and Safety System - 1. The GMDSS radionet * 2. Equipment maintenance requirements * 3. GMDSS personnel qualifications * Part 2: GMDSS Satellite Communications - 4. Satellite orbital parameters and outline satellite communication principles * 5. the Inmarsat organistaion * 6. The Inmarsat-A system * 7. The Inmarsat-B system * 8. The Inmarsat-C system * 9. The Inmarsat-M system * 10. Satellite mobile frequency bands * 11. The future * Part 3: Terrestrial Communications - 12. Signal propagation and the radio spectrum * 13. Antenna systems * 14. Radiocommunications systems * 15. The future * Glossary of terms and abbreviations * Appendices - Examination syllabus guidelines for the GMDSS GOC * The decibal (ab) * Producers of ship terminals * Satellite telephone country codes * Satellite telephone services * Index.