2.2.1 When communicating with a ship whose name
is unknown but whose position is known, that position may be used.
In this case the call is addressed to all ships.
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Example:
"Hello all ships, this is Pastoria, Pastoria. Ship approaching
number four buoy, I am passing Belinda Bank Light."
2.2.2 Where a message is received and only acknowledgement
of receipt is needed, say "received". Where a message is received
and acknowledgement of the correct message is required, say "received,
understood", and repeat message if considered necessary.
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Example:
"Message: Your berth will be clear at 08.30 hours.
Reply: Received, understood. Berth clear at 08.30 hours."
2.2.3 Where appropriate, the following message
should be sent:
When language difficulties exist which cannot be resolved
by use of the IMO Standard Marine Communication Phrases , the International
Code of Signals should be used.
In this case, the word "INTERCO" should precede the groups of
the International Code of Signals.
2.2.4 Where the message contains instructions
or advice, the substance should be repeated in the reply.
2.2.5 If a message is not properly received, ask
for it to be repeated by saying "Say again".
2.2.6 If a message is received but not understood,
say "Message not understood".
2.2.7 If it is necessary to change to a different
channel say "Change to channel ...." and wait for acknowledgement
before carrying out the change.
2.2.8 During exchange of messages, a ship should
invite a reply by saying "over".
2.2.9 The end of a communication is indicated
by the word "out".