Instruction Manual

Operation
4-55
4.6 DSC call log
Received DSC messages are classified as distress messages and as other messages. The 20 most
recent messages for both types of received and transmitted are saved in the log.
CAUTION
A distress acknowledgement or a distress relay call can be transmitted from a
received distress message stored in the log, but when sending such a kind of call,
follow the instructions of the ship's captain or officer in charge.
Received distress calls are automatically deleted after 48 hours to avoid accidental
resending or other misoperation. Accordingly, if such messages cannot be read
out, it is not a malfunction.
4.6.1 Received distress messages
Received messages regarding distress calls and the acknowledgements, distress relay calls and the
acknowledgements will be displayed in this received distress message log. Additionally, when
receiving a distress call containing the same 5 messages, only one of those will be stored.
■ Procedure ■
1
1
1
.
.
.
Press the MENU key, and through
hierarchical menus, select the 4.1 Received
distress list.
¾ On the bottom line, the MMSI of the ship
highlighted by the cursor will be displayed.
¾ In the event of a receiving error (ECC error),
"ECC error" will be indicated in the Type field.
2
2
2
.
.
.
To view a message, select a line by timestamp
and/or message type, and press ENT.
The selected message will be displayed.
Also the screen shows Message handling menus
at the bottom of the screen and enabled to handle
the message as follows.
(The handling menus will differ depending on the
type of message .)
- Close: Close the message and return to the list.
- ACK: Send the acknowledgement to the caller.
(In this case, to the ship in distress)
- Relay: Send this message to a specified coast
station as a distress relay call.
4.1)Received distress list
Date/Time Type
'06-12-31 11:20 ACK
'06-12-31 11:15
'06-12-31 11:10
'06-12-30 08:55
Relay-ACK
Distress
Relay
From: 431012345
Received distress message
Type :Distress
From :987654321
Nature :Fire
Position :34ﾟ00.1234'S
140ﾟ00.1234'W
UTC :14:55
[Close] [ACK] [Relay]