Static And Dynamic Vessel Data - Simrad V3100 User Manual

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Class A vs. SOTDMA Class B vs. CSTDMA Class B
A brief comparison between class A and class B AIS is illustrated in
the following table. V3100 is a SOTDMA class B AIS transponder.
Type of AIS
Primary access
scheme
Standard
Transmit power
and range
IMO mandate
Reporting rate
dynamic data
AIS data
presented
Applications

Static and dynamic vessel data

V3100 exchanges the following navigational data with other AIS
equipped vessels within VHF range to increase the safety of your
journey at sea.
There are two categories of information transmitted by an AIS tran-
sponder: static and dynamic data.
The vessel's dynamic data is calculated automatically using the
installed GPS antenna.
This includes:
•
Position of the vessel
•
Speed over ground (SOG)
•
Course over ground (COG)
•
True heading
About your AIS class B transponder |
Class A AIS Class B
SOTDMA
SOTDMA (Self- SOTDMA (Self-
organizing) organizing)
IEC 61993-2 IEC 62287-2
12.5 W 5 W
Mandatory No mandate
for all SOLAS
vessels
Highest Higher
(transmission up (transmission up
to every 2 sec) to every 5 sec)
Static, dynamic, Static and
voyage dynamic data
Commercial Smaller com-
vessels, mercial, fishing
fishing boats, and work boats,
working boats, recreational
passenger boats vessels
with more than
12 passengers
V3100 User Manual
Class B
CSTDMA
CSTDMA
(Carrier-sense)
IEC 62287-1
2 W
No mandate
Low
(transmission up
to every 30 sec)
Static and
dynamic data
Recreational
vessels and
small fishing
boats