Furuno FM-8900S Operator's Manual page 37

Press the CANCEL key to silence the audio alarm. Wait for the distress acknowledge
call from a coast station. If you do not receive the distress acknowledge call from a
coast station, which usually takes about five minutes from the time of receiving a dis-
tress alert, follow the flow charts in this section to determine your action.
Note: An asterisk (*) appearing in a distress alert message indicates an error at the
asterisk's location.
In no case is a ship permitted to transmit a DSC distress relay call upon receipt of a
DSC distress alert on VHF channel 70.
Flow chart for determining if you should/should not transmit a distress ac-
knowledge call
DSC distress alert received.
Press the CANCEL key
to silence alarm.
Listen on CH16 for
5 minutes.
Did you receive
acknowledge from
CS and/or RCC?
Yes
CS = Coast Station
RCC = Rescue Coordination Center
Enter details in log.
No
Is distress traffic
in progress?
Yes
Is your ship
able to aid
ship in
distress?
No
3. DSC DISTRESS OPERATIONS
HISTORY
Is the DSC
No
distress call
continuing?
Yes
Acknowledge the alert by
Yes
radiotelephone to the ship
in distress on VHF CH16.
1. Say "MAYDAY" once.
2. Say ID number of ship in
distress three times.
3. Say "This is" (your ship's
name) once.
4. Say ID number of your
ship three times.
5. Say "Received MAYDAY"
once.
Inform CS and/or RCC.
No
3-5