|
1 |
Position report |
Scheduled position report; (Class A shipborne mobile equipment) |
1 |
SOTDMA, RATDMA, ITDMA |
SOTDMA |
Mobile station |
|
|
2 |
Position report |
Assigned scheduled position report; (Class A shipborne mobile equipment) |
1 |
SOTDMA |
SOTDMA |
Mobile station |
|
|
3 |
Position report |
Special position report, response to interrogation; (Class A shipborne mobile equipment) |
1 |
RATDMA |
ITDMA |
Mobile station |
|
|
4 |
Base station report |
Position, UTC, date and current slot number of base station |
1 |
FATDMA, RATDMA |
SOTDMA |
Base station |
|
|
5 |
Ship static and voyage related data |
Scheduled static and voyage related vessel data report; (Class A shipborne mobile equipment) |
4 |
RATDMA, ITDMA |
N/A |
Mobile station |
|
|
6 |
Addressed binary message |
Binary data for addressed communication |
4 |
RATDMA, ITDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
7 |
Binary acknowledge |
Acknowledgement of received addressed binary data |
1 |
RATDMA, ITDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
8 |
Binary broadcast message |
Binary data for broadcast communication |
4 |
FATDMA, RATDMA |
N/A |
Mobile station, Base station |
|
|
9 |
Standard search and rescue aircraft position report |
Position report for airborne stations involved in SAR operations, only |
1 |
SOTDMA, RATDMA, ITDMA |
SOTDMA, ITDMA |
Mobile station |
|
|
10 |
Coordinated universal time and date inquiry |
Request UTC and date |
3 |
RATDMA, ITDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
11 |
Coordinated universal time and date response |
Current UTC and date if available |
3 |
RATDMA, ITDMA |
SOTDMA |
Mobile station |
|
|
12 |
Addressed safety related message |
Safety related data for addressed communication |
2 |
FATDMA, RATDMA, ITDMA |
N/A |
Mobile station, Base station |
|
|
13 |
Safety related acknowledge |
Acknowledgement of received addressed safety related message |
1 |
RATDMA, ITDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
14 |
Safety related broadcast message |
Safety related data for broadcast communication |
2 |
RATDMA, ITDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
15 |
Interrogation |
Request for a specific message type (can result in multiple responsed from one or several stations) |
3 |
RATDMA, ITDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
16 |
Assigned mode command |
Assignment of a specific report behaviour by competent authority using a Base station |
1 |
FATDMA, RATDMA |
N/A |
Base station |
|
|
17 |
Global navigation-satellite system broadcast binary message |
DGNSS corrections provided by a base station |
2 |
FATDMA, RATDMA |
N/A |
Base station |
|
|
18 |
Standard class B equipment position report |
Standard position report for Class B shipborne mobile equipment to be used instead of Message 1, 2 or 3 |
1 |
SOTDMA, ITDMA, CSTDMA |
SOTDMA, ITDMA |
Mobile station |
|
|
19 |
Extended class B equipment position report |
No longer required; Extended position report for Class B shipborne mobile equipment; contains additional static information |
1 |
ITDMA |
N/A |
Mobile station |
|
|
20 |
Data link management message |
Reserve slots for base stations |
1 |
FATDMA, RATDMA |
N/A |
Base station |
|
|
21 |
Aids-to-navigation report |
Position and status report for aids-to-navigation |
1 |
RATDMA, FATDMA |
N/A |
Mobile station, Base station |
|
|
22 |
Channel management |
Management of channels and transceiver modes by a Base Station |
1 |
FATDMA, RATDMA |
N/A |
Base station |
|
|
23 |
Group assignment command |
Assignment of a specific report behaviour by competent authority using a Base station to a specific group of mobiles |
1 |
FATDMA, RATDMA |
N/A |
Base station |
|
|
24 |
Static data report |
Additionan data assigned to a MMSI Part A: Name Part B: Static Data |
4 |
RATDMA, ITDMA, FATDMA, CSTDMA |
N/A |
Mobile station, Base station |
|
|
25 |
Single slot binary message |
Short unscheduled binary data transmission (Broadcast or addressed) |
4 |
RATDMA, ITDMA, FATDMA, CSTDMA |
N/A |
Mobile station, Base station |
|
|
26 |
Multiple slot binary message with communications state |
Scheduled binary data transmission (Broadcast or addressed) |
4 |
SOTDMA, RATDMA, ITDMA, FATDMA |
SOTDMA, ITDMA |
Mobile station, Base station |
|
|
27 |
Long-range automatic identification system broadcast message |
Class A and Class B "SO" shipborne mobile equipment outside base station coverage |
1 |
MSSA |
N/A |
Mobile station |
|
