User's Manual

Operation
4-43
4.5.2 Receiving safety or urgency individual calls
When receiving an individual DSC call from a coast or ship station, according to the message,
perform the following procedures as appropriate.
■ Procedure ■
The screen at right is displayed, and the ALM
lamp blinks and the alarm grows louder gradually.
¾ If no procedure exists, starts operating the
received message automatically.
¾ Basically similar to the routine individual call
except normally using the distress and safety
frequencies prior to other frequencies.
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1
1 Receiving special safety individual calls
(1) Safety test calls
■ Procedure ■
The screen at right is displayed, and the ALM
lamp blinks and the alarm grows louder gradually.
¾ If received while the 7.5.1.1 Test call of the
Automatic ACK menu is set to ON and there is
no active procedure, this call can be
acknowledged automatically.
¾ To acknowledge manually, after silencing the
alarm with CANCEL key, select ACK to start
sending procedure.
(2) Safety position request calls
■ Procedure ■
The screen at right is displayed, and the ALM
lamp blinks and the alarm grows louder gradually.
¾ If received while the 7.5.1.2 Position RQ call of
the Automatic ACK menu is set to ON and there
is no active procedure, this call can be
acknowledged automatically.
¾ To acknowledge manually, after silencing the
alarm with CANCEL key, select ACK to start
sending procedure.
¾ When sending a reply as “unable to comply”,
select NCK to send the acknowledge with no
position data.
ID 431001234 23:59(UTC)
Pos 89ﾟ59.0123'N
179ﾟ59.6789'E@23:59 (EXT)
RxID:123456789|IND|SAF
Waiting to send ACK(00.3min)
RX FRQ: 2187.5kHz
TEL :Rx 2182.0/Tx 2182.0kHz
Press CANCEL to silence alarm.
TEL
2182.0
2182.0
A A
ID 431001234 23:59(UTC)
Pos 89ﾟ59.0123'N
179ﾟ59.6789'E@23:59 (EXT)
RxID:123456789|IND|SAF Test
Waiting to send ACK(00.2min)
RX FRQ: 2187.5kHz
[ACK][INF][HLD][END]
DSC
2187.5
2187.5
A A
ID 431001234 23:59(UTC)
Pos 89ﾟ59.0123'N
179ﾟ59.6789'E@23:59 (EXT)
RxID:123456789|IND|SAF POS
Waiting to send ACK(00.2min)
RX FRQ: 2187.5kHz
[ACK][NCK][INF][HLD][END]
DSC
2187.5
2187.5
A A