Transas T214, Техническое руководство

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Settings of Base Station configuration
TRANSAS AIS BASE STATION T214. Technical Manual.
68
Field values:
Msg4 Base – Message 4 Broadcast Starting Slot (Note 1)
Msg17 Base (A) – Message 17 Channel “A” Starting Slot (Note 2)
Msg17 Inc (A) – Message 17 Channel “A” Slot Interval (Note 3)
Msg 17 NSlots (A) – Message 17 Channel “A” Number of Slots (Note 4)
Msg20 Base (A) – Message 20 Channel “A” Starting Slot (Note 2)
Msg20 Inc (A) – Message 20 Channel “A” Slot Interval (Note 3)
Msg22 Base (A) – Message 22 Channel “A” Starting Slot (Note 2)
Msg22 Inc (A) – Message 22 Channel “A” Slot Interval (Note 3)
Msg17 Base (B) – Message 17 Channel “B” Starting Slot (Note 2)
Msg17 Inc (B) – Message 17 Channel “B” Slot Interval (Note 3)
Msg 17 (B) NSlots – Message 17 Channel “B” Number of Slots (Note 4)
Msg20 Base (B) – Message 20 Channel “B” Starting Slot (Note 2)
Msg20 Inc (B) – Message 20 Channel “B” Slot Interval (Note 3)
Msg22 Base (B) – Message 22 Channel “B” Starting Slot (Note 2)
Msg 22 Inc (B) – Message 22 Channel “B” Slot Intervals (Note 3)
NOTES:
1. Starting slot ranging from –1 to 749 for ITU-R M.1371 Message 4 broadcasts.
The broadcasts alternate between the channels A and B through the end of the
frame. The increment may vary (see ITU-R M.1371, Annex 1, 4.2.1, Table 1B
and footnote 1 for details). Reporting intervals for Base station in once to 10
seconds. The base station rate should increase to once per 3
1
/
3
seconds after
the station detects that one or more stations are synchronizing to the base
station.
A value of –1 discontinues broadcasts of message 4 when the CBM sentence is
sent to the AIS equipment, and indicates that no message has been broadcast if
the CBM sentence is received from the AIS equipment. A null field indicates no
change to the current start slot setting when sent to the AIS equipment, and
indicates that the start slot has not been set, i.e. is unavailable, when the CBM