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4. DISTRESS OPERATIONS
4-10
5. Rotate the ENTER knob to choose ACKNOWLEDGE and then push the ENTER knob.
The following display appears.
MSG TYPE : DISTRESS ACK
SHIP ID IN DIST :
123456789
DSC FREQ :
2187.5 kHz
Compose msg.
GO TO VIEW
MSG TYPE : DISTRESS ACK
SHIP ID IN DIST :
123456789
DSC FREQ :
2187.5 kHz
Compose msg.
GO TO VIEW
Ack should be
By Coast Station
CANCEL: CLOSE WINDOW
6. Press the CALL key for three seconds.
The message “Priority distress transmit sure?” appears. Continue to press the key until
the message “Distress acknowledge message in progress.” Appears, to transmit the
distress acknowledge call to the ship in distress.
SHIP ID IN DIST :
123456789
Distress acknowledge
message in progress!
DSC FREQ :
2187.5 KHZ
TIME TO GO: 4S
CALL key
pressed
3 seconds
SHIP ID IN DIST:
123456789
Priority distress
transmit sure?
DSC FREQ :
2187.5 KHZ
KEEP PRESSED FOR 3S
4.2.2 Distress alert received on HF band
If you receive a distress alert on the HF band, the ALARM lamp lights and the audio alarm
sounds. Press the CANCEL key to silence the audio alarm. Wait for the distress
acknowledge from a coast station. If you do not receive the distress acknowledge within five
minutes, follow the instructions below to determine your course of action.
• Watch on the distress frequency.
• Relay the distress alert in the following cases:
- You have not received a distress acknowledge call from a coast station within five
minutes after receiving a distress call.
- You have not received a distress relay from other ship.
- You cannot receive distress communications from other ship over radiotelephone.
- If it is clear the ship or persons in distress are not in the vicinity and/or other crafts
are better placed to assist, superfluous communications which could interfere with
search and rescue activities should be avoided. Details should be recorded in the
appropriate log book.
- The ship relaying the distress alert should establish communications with the station
controlling the distress as directed and render such assistance as required and
appropriate.