
9
3
WHEN RECEIVING A CALL
■
To receive a DSC call
D
When receiving a DSC call
You should act in one of the following ways depending on the
received DSC format (or category):
• Wait for a voice transmission on the traffic frequency.
• Transmit an acknowledgement with DSC or voice.
• Transmit a distress relay call (only when the ship in dis-
tress requires voice communications).
D
Display example and operation
• Monitoring the traffic frequency and ...
Monitor the communication between the calling ship and a
coast station. When no communication is made, contact the
ship using voice transmission.
• Emergency alarm sounds for 2 min., or push [CLR] to
cancel the alarm.
• Monitoring the traffic frequency
The calling station transmits via
voice on the traffic frequency.
• Emergency alarm (or con-
tinuous beeps depending
on the category) sounds
until pushing [CLR].
• Transmit an acknowledgement
When the following DSC is re-
ceived, an ‘acknowledgement’
must be sent back to the calling
station.
• Continuous beeps (or emer-
gency alarm depending on
the category) sounds until
pushing [CLR].
—RCV Individual ACK—
From: ICOM DSC
Able to comply
<CLR
"
Exit / ENT
"
OK>
—RCV All ships call—
From: ICOM DSC
Category: Routine
<CLR
"
Exit / ENT
"
OK>
When receiving an All ships
calll.
When receiving an Individual
acknowledgement.
Содержание DS-100
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