Icom IC-M804 Instruction Manual - Page 29

Sending DSC calls (Distress), Simple call

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DSC OPERATION 6 ■ Sending DSC calls (Distress) A Distress call should be sent when, in the opinion of the captain, the vessel or a person is in distress and requires immediate assistance. NEVER MAKE A DISTRESS CALL IF YOUR VESSEL OR A PERSON IS NOT IN AN EMERGENCY. A DISTRESS CALL SHOULD BE MADE ONLY WHEN IMMEDIATE HELP IS NEEDED. D Simple call 1. Confirm that no Distress call is being received. 5. Push Close Call RCVD Window . 6 2. While lifting the key cover, hold down [DISTRESS] for 3 seconds until you hear 3 short countdown beeps and 1 long beep sound. • The backlight blinks.  All Emergency Frequencies are automatically selected to send a Distress call. 3. After sending, wait for an Acknowledgment call. 6. Hold down [PTT], and then explain your situation. 7. After you have finished your explanation, push Standby Mode , and then OK to return to the Main screen. TIP: A default Distress alert contains: • Nature of distress: Undesignated distress • Position information: The latest GPS or manually input position held for 23.5 hours or until you turn OFF the transceiver. • "Waiting for ACK" is displayed. • The Distress call is automatically sent every 3.5 to 4.5 minutes until an Acknowledgment is received, or a Distress Cancel call is sent. 4. When you receive an Acknowledgment, an alarm sounds. Push Alarm Off to turn OFF the alarm. 24

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24
DSC OPERATION
6
6
■
Sending DSC calls (Distress)
A Distress call should be sent when, in the opinion of
the captain, the vessel or a person is in distress and
requires immediate assistance.
NEVER MAKE A DISTRESS CALL IF YOUR
VESSEL OR A PERSON IS NOT IN AN
EMERGENCY. A DISTRESS CALL SHOULD
BE MADE ONLY WHEN IMMEDIATE HELP IS
NEEDED.
D
Simple call
1.
Confirm that no Distress call is being received.
2.
While lifting the key cover, hold down [DISTRESS]
for 3 seconds until you hear 3 short countdown
beeps and 1 long beep sound.
•
The backlight blinks.
All Emergency Frequencies are automatically
selected to send a Distress call.
3.
After sending, wait for an Acknowledgment call.
•
“Waiting for ACK” is displayed.
•
The Distress call is automatically sent every 3.5 to
4.5 minutes until an Acknowledgment is received, or
a Distress Cancel call is sent.
4.
When you receive an Acknowledgment, an alarm
sounds. Push
Alarm Off
to turn OFF the alarm.
5. Push
Close Call RCVD Window
.
6.
Hold down [PTT], and then explain your situation.
7.
After you have finished your explanation, push
Standby Mode
, and then
OK
to return
to the Main screen.
TIP:
A default Distress alert contains:
•
Nature of distress: Undesignated distress
•
Position information: The latest GPS or manually
input position held for 23.5 hours or until you turn
OFF the transceiver.