Icom IC-M220 Instruction Manual page 32

7
DIGITAL SELECTIVE CALLING (DSC)
D Sending an All Ships call
All Ships that have DSC transceiver use Channel 70 as their listening channel. When you
want to announce a message to these ships, if they are within range, use the All Ships
Call.
OTHER DSC
1. Push
• The "OTHER DSC" screen is displayed.
L You can also display the "OTHER DSC" screen by
selecting the "Other DSC" item on the Menu screen.
2. Select "Type," and then push [ENT].
• The "MESSAGE TYPE" screen is displayed.
3. Select "All Ships," and then push [ENT].
• The All Ships call is selected, and returns to the
"OTHER DSC" screen.
4. Select "Category," and then push [ENT].
• The "CATEGORY" screen is displayed.
5. Select a category of the call, and the push [ENT].
• The category is set, and returns to the "OTHER DSC"
screen.
6. Select "Channel," and then push [ENT].
7. Select the channel to assign, and then push [ENT].
L The assigned channels are preset by default.
8. Push CALL
• "Transmitting All Ships Call" is displayed, and then the
assigned channel is automatically selected.
L If Channel 70 is busy, the transceiver stands by until
the channel becomes clear.
9. Hold down [PTT] to communicate.
22
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to send the All Ships call.