Calling A Particular Group Of Stations (Group Call); Calling All Stations (All-Ships Call) - Uniden UM455 Owner's Manual

Using Digital Selective Calling (DSC) Features

Calling a particular group of stations (Group Call)

Group calling calls all the stations that share your group MMSI. You must have a
group MMSI programmed into the radio to make a group call, and the stations (boats)
you are calling must have this same group MMSI programmed into their radios.
1. Press
CALL-MENU
2. Select Group.
3. The radio prompts you to select a response channel. Use
to scroll through the available channels. When you reach the channel you
DOWN
want to use for a response, press
4. The radio asks you to confirm the call. Select Send to continue with the call or
select Cancel to cancel the call.
5. The radio switches to channel 70 to transmit the call request then automatically
switches to the designated response channel.

Calling all stations (All-Ships Call)

All ships calling contacts all DSC radios within range of your boat. You should only
use all ships calling in the event of a Safety warning (such as debris in the water) or
to request assistance in an Urgency (any situation where your vessel has a serious
problem but is not yet in distress).
1. Open the call menu.
2. Select All Ships, and then choose whether this is an Urgency call or a Safety call.
3. The radio asks you to confirm the call. Select Send to continue with the call or
select Cancel to cancel the call.
4. The radio automatically switches to channel 70 to transmit the call request then
automatically switches to channel 16, the designated response channel for all-
ships calling.
to display the call menu.
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ENT-1W/25W
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and
CHANNEL UP CHANNEL