Introduction/Additional information:
This message should be used to inform ships, in particular to give guidance to large vessels about temporary closed fairways or sections in ports. Attributes: broadcast, shore station transmitting, no acknowledgement.
Registrant:
IMO Circ. 236
DAC:
1
FI:
13
State:
deprecated
Number of slots (max):
3
Permitted as from:
17/05/2004
Not to be used after:
01/01/2013
Details:
| Parameter | No. of Bits | Description |
|---|---|---|
| Message ID | 6 | Identifier for Message 8; always 8 |
| Repeat Indicator | 2 | Used by the repeater to indicate how many times a message has been repeated. |
| Source ID | 30 | Name of source station |
| Spare | 2 | Not used. Should be set to zero. |
| IAI | 16 | DAC = 001; FI = 13 |
| Reason for closing | 120 | Maximum 20 characters 6-bit ASCII “@@@@@@@@@@@@@@@@@@@@” = not available = default |
| Location of closing from | 120 | Maximum 20 characters 6-bit ASCII “@@@@@@@@@@@@@@@@@@@@” = not available = default |
| Location of closing To | 120 | Maximum 20 characters 6-bit ASCII “@@@@@@@@@@@@@@@@@@@@” = not available = default |
| Extension of closed area (radius) | 10 | extension; (valid range 0-1000, 1001 = not available = default) |
| Unit of extension value | 2 | 0=[m], 1=[km], 2=[nm], 3=[cbl] |
| Closing from day | 5 | 1-31; 0 = day not available = default |
| Closing from month | 4 | 1-12; 0 = month unavailable = default; 13-15 unused |
| From LT hour (appr) | 5 | 0-23; 24 = LT hour not available = default; 25-31 not used |
| From LT minute (appr) | 6 | 0-59; 60 = LT minute not available = default; 61-63 not used |
| To day | 5 | 1-31; 0 = day not available = default |
| To month | 4 | 1-12; 0 = month unavailable = default; 13-15 unused |
| To LT hour (appr) | 5 | 0-23; 24 = LT hour not available = default; 25-31 not used |
| To LT minute (appr) | 6 | 0-59; 60 = LT minute not available = default; 61-63 not used |
| Spare | 4 | |
| Total number of bits | 472 | occupies 3 slots |
