Radiocommunication Study Groups International Association of Marine Aids to Navigation



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Table 4 Geographical classification of e-Navigation data and voice communication techniques Ship-Ship










Technologies for data transfer ship <-> ship, listed generally in order of geographical range







e-NAV Area Definitions

GMDSS Sea Area (approx)

Broadband phone line or cable. (When ship at berth)

Wi-Fi®

WiMax™

Mobile phone technology

AIS

VDE

Digital VHF voice and data

Data by modulated RADAR

Geostationary Satellite

Commercial MEO/LEO satellite comms

MF & HF (including Navtex / MSI)

DGPS beacon data broadcast service

Current MF & HF NDBP

HF digital data service

MF/HF digital data services for MSI (incl NAVDAT)

1 – Inside port

A1




F

F

E

E

F

F

F

E

E

E









F

2- Approaching port area

A1







F

E

E

F

F

F

E

E

E









F

3A – Coastal navigation out to cell phone coverage (approx. 5nm)

A1










E

E

F

F

F

E

E

E






E

F

3B - Coastal navigation VHF coverage range (approx . 25nm)

A1













E

F

F

F

E

E

E






E

F

4 - Coastal approach (approx. 100nm)

A2













E

F

F

F

E

E

E





E

F

5 - High seas

A3













E

F

F

F

E

E

E






E

F

6 - Polar regions

A4













E

F

F

F




E

E






E

F

Legend:

















































Existing technology

E








































Future: Not existing or not widely used

F



























































































Possible preferred technology (Existing, Future)

E

F



































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