Making A Distress Call - Icom ic-m423 Instruction Manual

7
DSC OPERATION

■ Making a Distress call

A Distress call should be made if, in the opinion of the Master,
that 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
While lifting up the key cover, hold down [DISTRESS] for 3
q
seconds to transmit the Distress call.
• While holding down [DISTRESS], count down beeps sound and
both the key and display backlighting blink.
• DSC channel (Channel 70) is automatically selected and the
Distress call is transmitted.
26
After transmitting the call, the transceiver waits for an ac-
w
knowledgment call.
• The Distress call is automatically transmitted every 3.5 to 4.5
minutes, until an acknowledgement is received ('Call repeat'
mode), or DSC Cancel call is made. (p. 29)
• Push [RESEND] to manually transmit the Distress repeat call.
• Push [Ω]/[≈] then push [INFO] to display the transmitted Dis-
tress call information.
• Push [Ω]/[≈] then push [PAUSE] to pause the 'Call repeat' mode,
push [RESUME] to resume it.
After receiving the acknowledgment, push [ALARM OFF]
e
then reply using the microphone.
A distress alert default contains:
➥
• Nature of distress: Undesignated distress
• Position information: The latest GPS or manually entered posi-
tion is held for 23.5 hours, or until the power
is turned OFF.