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1. OPERATIONAL OVERVIEW
1-11
Preparing and transmitting DSC messages
There are two methods by which you can prepare and transmit DSC messages,
and they are shown below.
● Preparing message for immediate transmission
1. Press the CALL key at the standby display.
2. Select the call type.
3. Select other party (ID) if necessary.
4. Select the communications category.
5. Select the communications channel.
6. Press the CALL key more than three seconds.
● Transmitting a message stored in the memory
100 messages can be saved to the memory. You may open a memory-stored
message and transmit it.
Distress alert transmission and output power
When the distress alert is transmitted (by pressing the DISTRESS key), the
output power of the FM-8800D/S is automatically set to maximum (25 W).
When keyboard input is prohibited
DSC-related controls cannot be operated while a DSC message is being
transmitted. (These controls are inoperative about 3 seconds during a DSC
distress call; 0.5 seconds for other DSC calls.)
1.3.3 Automatic acknowledge on/off
The automatic acknowledge feature of the DSC/watch receiver automatically
transmits the acknowledge back (ACK BQ) signal to the sending station when an
individual, position or polling call is received. (For position and polling calls,
respective item on the AUTO ACK menu must be turned on to enable automatic
acknowledge.) Automatic acknowledge can be turned on or off at the standby
display by pressing the SHIFT and 5 keys in this order.
The message AUTO ACK or MANUAL ACK appears at the bottom of the
standby display with each press of the keys.
Note 1: To give priority to own ship's communications while own ship is
communicating, show MANUAL ACK by the above procedure.
Note 2: Automatic acknowledge is not possible under the following conditions:
Priority: Distress, Urgency or Safety
Com Type: Fax, Data, No Info
Com Freq: No Info
Off Hook