7. DISTRESS OPERATIONS
7-2
The state of the LED in the DISTRESS button and the buzzer change according to the
events in the distress transmission sequence.
The DISTRESS button on the terminal unit of the FELCOM or the Distress Alert/Re-
ceive Call Unit IC-305 cannot be used to silence the audio alarm for incoming distress
or EGC urgency broadcast. The DISTRESS button is for sending a distress alert
for own ship. It cannot be used to silence the audio alarm. Use the F10 key on
the keyboard to silence the audio alarm.
7.2 How to Send the Distress Alert with Nature of
Distress Specified
When a life-endangering situation arises on your vessel and there is time to specify
the nature of distress and the recipient (LES) of the distress alert, send own ship data
(position, time, speed and course) as follows:
1. Press the F9 key to display the [Distress Alert Setup] screen.
2. [LES ID] is selected; press the Enter key.
3. Select a suitable LES then press the Enter key.
4. Select [Update Time] then press the Enter key.
5. Enter the current time then press the Enter key.
Note: When the latitude and longitude position is entered manually, the time of
the position will be the time entered here.
6. Select [Position] then press the Enter key.
Event in
distress TX sequence
LED state Buzzer state
Idle OFF OFF
Distress TX Lighting Continuous
Distress ACK 1.2 s ON, 0.3 s OFF 1.2 s on, 0.3 s OFF
Distress Alert Setup
LES ID
Update Time
Position
Protocol
Nature
Course
Speed
303 (KDDI)
06:23 02-02-25 (YY-MM-DD)
LAT 35:00N
LON 135:00E
Maritime
Undesignated
187
10 kn
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