Introduction
An introduction to terms
Page 1-2
9-Nov-00
Land Earth Station
Fishing vessel
Vesse surveillance
centre
Terrestrial
line
Figure 1 System Overview
When a position is transmitted from the vessel/vehicle to the sur-
veillance centre the address of the recipient must be known by the
Inmarsat-C transceiver otherwise the transceiver will not know
where to send it. This address is called the VMS DNID and VMS
LES. Figure 2 shows an antenna blocked position report being
sent to recipient LES 312 and DNID 12345.
T h r a n e & T h r a n e
Power
Set
L o g i n
S e n d
T T - 3 0 2 2 C
TT-3022D, TT-3020C,
TT-3028CM, TT-3022C
Antenna Blocked
55.44N 12.28E
11:37 am
10 knot
120 degree
To:
VMS LES: 312
VMS DNID: 12345
From:
member 47
LES312
LES204
LES102
Figure 2 LES, DNID and member number
Содержание TT-3020C
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