1. INMARSAT-B SYSTEM
1-4
1.5
Inmarsat-B Services
The Inmarsat-B maritime satellite communication system provides digital
telephone (voice), facsimile, telex and data (9600 kbps) and HSD services. Use
of the latest digital technology means lower toll charges than in Inmarsat-A, since
high output power satellites are not required and data is transmitted at high
speed.
1.6
Comparison of Inmarsat Systems
Inmarsat provides worldwide communication services for both maritime and land
subscribers, and consists of four systems, A, B, C, M and Mini-M. The following
table shows the services available with each system.
Comparison of Inmarsat systems
Service
Inmarsat-A
Inmarsat-B
Inmarsat-C
Inmarsat-M
Inmarsat Mini-M
Voice
YES
YES
NO
YES
YES
Facsimile
YES
YES
NO
YES
YES
Telex
YES
YES
YES
NO
NO
Data
YES
YES
YES
YES
YES
HSD
YES
YES
NO
NO
NO
Содержание Felcom 82
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