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IALA
COLREG
COLREG
IALA
Lichten
Seinen
GMDSS
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EN
ES
CA
DE
FR
IT
PT
NL
EL
HR
PT-BR
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25:00
Common-mistake trap: an operator deselects all NAVTEX messages except 'D — SAR' to reduce clutter. What is wrong?
A
Nothing
B
Even if allowed filtering is applied…
C
Only A is mandatory
D
Filtering is forbidden entirely
