User's Manual

Operation
4-55
4.6 DSC call log
DSC messages are classified as received distress messages, received other messages and
transmitted messages. The 20 most recent messages for every type are saved in the log.
CAUTION
Received distress message logs are automatically deleted after 48 hours to
avoid accidental resending or other misoperation. Accordingly, if such
messages cannot be read, it is not a malfunction.
The received distress message logs are cleared when turning off the power
by such as the breaker on the power supply. Due to the SOLAS Convention
(keeping watch on distress and safety frequencies at all times), do not turn
off the equipment when at sea.
4.6.1 Received distress messages
The distress alerts, the distress acknowledgements, the distress relay calls, and the distress
relay acknowledgements are stored in this log. For the distress alerts, the messages with the
same content are received at a maximum of 6 messages for the multi-frequency method or a
maximum of 5 messages for the single frequency method, but only one is stored unless otherwise
closed the received message during that multiple receptions.
■ Procedure ■
1
1
1
.
.
.
Press the MENU key, and through
hierarchical menus, select “4.1 Received
distress”.
¾ On the bottom line, the MMSI of the ship
is displayed highlighted by the cursor.
¾ If the message includes a reception error
(ECC error) ERR is shown in the CAT
field.
2
2
2
.
.
.
Select a displayed message and press
ENT.
ID 431001234 23:59(UTC)
Pos 89ﾟ59.0123'N
179ﾟ59.6789'E@23:59 (EXT)
TEL Rx: 4125.0/Tx: 4125.0kHz
4.1)Received distress
No Date/Time CAT Format
01 2008-07-31 11:20 DST ALL
02 2008-07-31 10:33 DST INDIV
03 2008-07-31 10:25 DST AREA
04 2008-07-31 10:03 --- DSTRS
05 2008-07-19 22:53 ERR DSTRS
01 2008-08-01 23:31 DST INDIV
From: 431000123
ID 431001234 23:59(UTC)
Pos 89ﾟ59.0123'N
179ﾟ59.6789'E@23:59 (EXT)
TEL Rx: 2065.0/Tx: 2065.0kHz
Received distress message
Type :Distress
From :003456789
Nature :Man overboard
Position :12ﾟ34.0000'N
123ﾟ45.0000'E
UTC of pos:11:20
Mode :Radiotelephone
EOS :EOS
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