DIGITAL SELECTIVE CALLING
Caution
To make a DSC individual call, the radio of the receiving party should be set to
manually acknowledge the individual call request from the initiating party.
Otherwise, the radio of the receiving party will automatically send an "unable to
acknowledge" message and the individual call cannot be established. For
information about how to set it, see 12.4 Individual Acknowledgement.
4.4.1
How to Initiate an Individual Call
Enter the individual call page
On the home screen, press the Menu/DSC control to enter the "MAIN
Step 1
MENU" screen.
Step 2
Go to "DSC CALL > INDIVIDUAL".
The "INDIVIDUAL" page appears on the screen.
Initiate an individual call to a vessel registered in the individual
directory
Before you initiate an individual call from the individual directory, a vessel or
person's name and the MMSI number associated with the vessel you want to
transmit the call should be added to the individual directory. For information about
how to add entries to individual directory, see section 12.1.1 Adding an Entry.
On the "INDIVIDUAL" page, select "DIRECTORY".
Step 1
Select an individual contact, and then press the Menu/DSC control to
Step 2
enter the "SELECT CH" page.
Select a channel.
Step 3
Press the Menu/DSC control to initiate an individual call.
Step 4
When CH70 is busy, you can wait without pressing any key until CH70
is idle.
When the CH70 is idle, the following screens appear, and the radio
waits for an acknowledgement.
FM-4800 Operator's Manual
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