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4.3 Receiving a Distress Call
The DSC Watch Receiver keeps continuous watch on the distress and safety frequency
2187.5 kHz. Reception of a distress or urgency call is indicated by a specific sound signal
which continues until a key is pressed. Additional DSC channels can be used if 6-channel
scan has been enabled, see chapter “Watch keeping receiver”.
Ships receiving a distress alert from another ship should prepare for receiving the subse-
quent distress communication on the telephony distress frequency in the same band in which
the DSC call was received.
Press to read the call
Select distress
call options
Selects older/newer call
Returns to previous telephony display
Returns to previous telephony display
Wait for a short interval in order to give a coast station time to acknowledge the DSC distress
alert first. Then, if within range and able to assist, acknowledge the receipt of the distress
alert by radiotelephony:
Press the handset key and say:
• the distress signal MAYDAY;
• the words THIS IS;
• the NAME of the vessel in distress, spoken three times;
• the NAME or other identification of own ship, spoken three times;
• “RECEIVED MAYDAY”.
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