I Distress Call - Icom IC-M421 Instruction Manual

6
DSC OPERATION

I Distress call

A distress call should be transmitted, if in the opinion of the
Master, the ship or a person is in distress and requires imme-
diate assistance.
NEVER USE THE DISTRESS CALL WHEN YOUR
SHIP OR A PERSON IS NOT IN AN EMERGENCY.
A DISTRESS CALL CAN BE USED ONLY WHEN
IMMEDIATE HELP IS NEEDED.
D D Simple call
q Confirm no distress call is being received.
w While lifting up the key cover, push [DISTRESS] for
5 sec. to transmit the distress call.
• Emergency channel (Ch 70) is automatically selected and the
distress call is transmitted.
• When no GPS is connected, input your position and UTC time, if
possible.
• While pushing [DISTRESS], the key backlighting is blinking.
Distress Call
Push for 5 sec.
22
e After transmitting the distress call, the transceiver waits for
an acknowledgment call on Ch 70.
• The distress call is automatically transmitted every 3.5 to 4.5
minutes.
• After 2 sec., the transceiver is set to Channel 16 automatically.
Distress Call
TX Completed
Now Waiting for ACK
<CLR˘Cancel ACK>
After 2 sec.
CALLING
r After receiving the acknowledgment, reply using the mi-
crophone.
25W
RCV DTRS ACK
<Osaka Bay
<CLR˘
CALLING
INT
25W TAG
Wait ACK
<CLR˘
Cancel ACK>
INT
TAG
Beep Off>