Icom IC-M402

17
6
DSC OPERATION
■ Receiving DSC calls
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Receiving a distress call
While monitoring Ch 70 and a distress
call is received:
➥ Emergency alarm sounds for 2 min-
utes.
•Push any switch to stop the alarm.
➥ “DSC” appears and “RCV Distress” scrolls in the display,
then Ch 16 is automatically selected.
➥ Continue monitoring Channel 16 as a coast station may re-
quire assistance.
ïï
Receiving a distress acknowledgement
While monitoring Ch 70 and a distress
acknowledgement to other ship is re-
ceived:
➥ Emergency alarm sounds for 2 min-
utes.
•Push any switch to stop the alarm.
➥ “RCV Distress ACK” scrolls in the display, then Channel 16
is automatically selected.
ïï
Receiving a distress relay acknowledgement
While monitoring Ch 70 and a dis-tress relay acknowledge-
ment is received:
➥ Emergency alarm sounds for 2 min-
utes.
• Push any switch to stop the alarm.
➥ “RCV Distress Relay ACK” scrolls in the display; then
Ch 16 is automatically selected.
ïï
Receiving a distress relay call
While monitoring Ch 70 and a distress relay call is received:
➥ Emergency alarm sounds for 2 min-
utes.
•Push any switch to stop the alarm.
➥“RCV Distress Relay” appears in the
display, then Channel 16 is automati-
cally selected.
➥ Monitor Channel 16 until the emergency communication
has been completed.
ïï
Receiving an all ships call
While monitoring Ch 70 and an all ships call is received:
➥ Emergency alarm sounds when the category is “Distress”
or “Urgency;” 2 beeps sound for other
categories.
➥“RCV All ships” scrolls in the display;
then,the channel specified by the call-
ing station is automatically selected for
voice communication.
➥ Monitor the selected channel for an announcement from
the calling vessel.
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