Dsc Operation; About Dsc; Dsc Address Id; D Entering An Individual Or Group Id - Icom IC-M804 Instruction Manual

■ About DSC

Digital Selective Calling (DSC) is an automated digital
communication system defi ned by ITU-R M.493, and
is also part of the Global Maritime Distress and Safety
System (GMDSS). The international VHF and MF/HF
marine transceivers installed in this system can transmit
and receive Distress, Urgency, Safety, and Routine
DSC calls to and from other vessels and coast stations.
If your vessel requires assistance, contact other vessels
and the Coast Guard by sending a Distress call, which
includes your MMSI code, the position and time data,
and the nature of distress on an emergency frequency.

■ DSC address ID

D Entering an Individual or Group ID

You can enter a total of 75 Individual IDs and 25 Group
IDs, and assign names of up to 10 characters.
(Example: Entering an Individual ID)
1. Open "Individual ID."
[MENU] > DSC Settings > Individual ID
• "No ID" is displayed if no ID is entered.
L To entering a Group ID:
[MENU] > DSC Settings > Group ID
2. Push .
Add
• The ID entry screen is displayed.
3. Select "Address."
NOTE:
• To use a DSC call, entering the MMSI code is
needed. See page 8 for details.
• To send your vessel's position and time data,
receiving them from the supplied GPS antenna,
NMEA 0183 or NMEA 2000, or manually entering
is needed. See page 63 for each connector
connection and page 22 for manual input details.
• The Mode setting of all DSC call is fi xed to
"Telephony."
• The order of priority for DSC calls is Distress,
Urgency, Safety, and Routine.
4. Enter an Individual or Group ID, and then push
5. Select "Call Frequency."
Rotate
6. Enter a receive frequency, and then push
+
Push
7. Enter a transmit frequency, and then push

DSC OPERATION

.
Finish
NOTE:
• For a Group ID, the fi rst digit is fi xed as "0."
• For any coast station ID, the fi rst two digits
are fi xed as "00."
► Continued on the next page.
6
5
6
Rotate
+
Push
Rotate
+
Push
.
Finish
Rotate
+
Push
.
Finish
Rotate
+
Push
20