Users Manual
Operation
4-28
4.4.2 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 receiving screen at right is displayed with RX DSC
mark flashing for a moment and the alarm sound grows
louder gradually.
If no procedure exists, starts operating the received
message as the active procedure automatically.
In the case of an urgency call, the alarm is stopped by
touching the [STOP] button.
After that, similar as the routine individual calls
mentioned above except to use CH16 basically.
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Receiving special safety individual calls
(test calls and position request calls)
(1) Receiving safety test calls
■ Procedure ■
The receiving screen at right is displayed with RX DSC
mark flashing for a moment and the alarm sound grows
louder gradually.
If there is no active event, and TEST on the AUTO ACK
menu (MENU>SETUP>DSC OPE) is ON, then the call
is acknowledged automatically.
To acknowledge manually, after silencing the alarm
with the [STOP] button, touch the [ACK] button.
(2) Receiving safety position request calls
■ Procedure ■
The receiving screen at right is displayed with RX DSC
mark flashing for a moment and the alarm sound grows
louder gradually.
If there is no active event, and POSITION RQ on the
AUTO ACK menu (MENU>SETUP>DSC OPE) is ON,
then the call is acknowledged automatically.
To acknowledge manually, after silencing the alarm
with the [STOP] button, touch the [ACK] button.
To send the acknowledgement (unable to comply),
touch the [NACK] button.