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5. DSC GENERAL MESSAGE CALLING, RECEIVING
5-19
3. Watch on the working frequency. Communicate by radiotelephone or NBDP (see
the following "Medical transport call received by NBDP terminal unit").
4. After you have completed communications, rotate the ENTER knob to select
[QUIT] in the user options area then push the knob.
Medical transport call received by NBDP terminal unit
After receiving a medical transport call, confirm the following.
• The control unit's screen shows the TX and RX frequencies.
• The message from the sending station appears on your NBDP terminal unit.
5.6 How to Receive a Polling Request
Polling means another ship wants to confirm if it is within communicating range of your
ship.
5.6.1 Automatic reply
When a polling request message is received with [AUTO] setting on [POLLING MSG]
of the [ACK SETTINGS] menu, an acknowledge is sent automatically. For details see
section 6.17 ([PRIORITY]: [ROUTINE] only).
5.6.2 Manual reply
When you receive a polling request message, the audio alarm sounds. The icon ( )
appears in the tab area, and the pop-up message "POLLING message received!
[CANCEL]: Stop alarm" appears. The equipment is set up for manual acknowledge:
[POLLING MSG] on the [ACK SETTINGS] menu is [MANUAL].
1. Press the CANCEL key to silence the audio alarm and erase the pop-up mes-
sage.
2. Rotate the ENTER knob to select [ACK] then push the knob to send the polling
acknowledge message.
3. Rotate the ENTER knob to select [QUIT] then push the knob.
(1) Polling
(2) Acknowledge
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