IALA

Capability reply

Introduction/Additional information:

This IFM should be used by a ship or a base station to reply to a capability interrogation message.
The reply contains a table of the implemented application identifiers.

This IFM should be returned to the interrogating station only.

Registrant:
ITU-R.M.1371-1
Message number:
6
DAC:
1
FI:
4
State:
in force
Number of slots (max):
1
Permitted as from:
01/01/1998
Details:
 Parameter Number of bits  Description
 IAI/DAC code 10  See Annex 2, Table 20
 Capability mask 128  IAI/DAC FI capability table, two consecutive bits should be used for every IAI/DAC FI as follows: first bit: IAI/DAC FI available if set to 1  IAI/DAC FI not available if set to 0 =default  second bit: reserved for future use, such as version indication  should be set to zero
 Spare 6  Spare. Should be set to zero
 Total number of bits   80

Annex 2, Table 20

 DAC  Function identifier  Resulting application identifier (binary)  Resulting application identifier (hex)  Description
1 0  0000 0000 0100 0000 40  Use of these messages, e.g. for aids-to-navigation, VTS, search and rescue, should be as defined in Annex 5
1 1  0000 0000 0100 0001 41
1 2  0000 0000 0100 0010 42
1 3  0000 0000 0100 0011 43
1  …  0000 0000 01XX XXXX  …
1 63  0000 0000 0111 1111  007F