Icom IC-M220 Instruction Manual page 27

■ Sending DSC calls (Distress)
A Distress call should be sent if, in the opinion of the captain, the ship or a person is in
distress and requires immediate assistance.
NEVER MAKE A DISTRESS CALL IF YOUR SHIP 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 up the key cover, hold down [DISTRESS]
for 3 seconds until you hear 3 short countdown beeps
and a long beep sound.
• The backlight blinks.
Key cover
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 Acknowledgement is received, or a
Distress Cancel call is sent.
4. When you receive an Acknowledgment, an alarm
sounds. Push ALARM OFF
• Channel 16 is automatically selected.
5. Hold down [PTT], and then explain your situation.
6. After you have finished your conversation, push
CANCEL
to return to the operating screen.
TIP: A default Distress alert contains:
• Nature of distress: Undesignated distress
• Position information: The latest GPS, or manually input position, that is held for 23.5 hours,
or until you turn OFF the transceiver.
DIGITAL SELECTIVE CALLING (DSC)
to turn OFF the alarm.
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
17