JRC ECDIS - Attribute: Signal Group

B-109 Appendix B Menu List and Materials
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APP B
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APP C
Attribute: Signal group
Acronym: SIGGRP Code: 141
Attribute type: A
Definition:
The number of signals, the combination of signals or the morse character(s) within one period of
full
sequence.
References:
INT 1: IP 10.2-9; IR 20, 22;
M-4: 453; 453.1-4; 471.2;
Indication:
The signal group of a light is encoded using brackets to separate the individual groups. A group
of
signals may be a single number, a chain of numbers separated by "+", a sequence of up to 4
letters
or a letter and a number.
A fixed light has no signal group.
Where no specific signal group is given for one of the light characteristics, this should be shown
by
an empty pair of brackets.
Format:
(c)(c)...
Examples:
Light characteristic SIGGRP Indication
VQ(6)+LFl -> (6)(1)
Fl+LFl (2+3) -> (1)(2+3)
Fl(2)+Lfl(3) -> (2)(3)
FFl -> ()(1)
Mo(AA) -> (AA)
AlFl(2W+1R) -> (2+1)
AlLFlWR -> (2)
FOcW -> ()(1)
AlOc(4)WR -> (4)