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1.2.1 Distress alert call and reply
This type of call is sent by own ship in the event of distress, by pressing the [DISTRESS] button
more than three seconds as follows:
1. The LED in the button initially flashes, and lights when the button is pressed more than three
seconds. (If the button is pressed less than three seconds the distress alert is not sent. Once
the alert is sent it cannot be cancelled.)
WARNING
IN CASE OF ACCIDENTAL TRANS-
MISSION OF THE DISTRESS ALERT
If the distress is accidentally transmitted,
contact the nearest coast station and inform
them of the accidental transmission as
follows:
a) Ship's name
b) Ship's call sign and DSC number
c) Position at time of transmission
d) Time of transmission
2. The DSC-60 sets the DSC distress frequency on the SSB radiotelephone and it transmits the
distress alert.
3. After the distress alert is transmitted (about 40 seconds) the DSC-60 waits for the DIST ACK
call from a coast station. This usually takes less than 3 minutes and is accompanied with an
audio alarm. (If it is not received within 4.5 minutes the distress alert is re-transmitted.)
4. The SSB sets the DSC distress frequency to use to communicate with the coast station. With
the optional handset you can communicate through the DSC-60.
Coast
Station
Own Ship
Ship in
Distress
(Own Ship)
Ship in distress sends Distress Alert
Coast station sends distress acknowledgement (DIST ACK).
Voice or telex communications between ship in distress and coast station