Calling A Single Station (Individual Call) - Uniden UM425 Owner's Manual

Using Digital Selective Calling (DSC) Features
Suppose you are coordinating safety for a sailboat race. Before the race
starts, you instruct all the racers to enter your group MMSI number into their
radios. During the race:
• Throughout the race, you use group calling to update the racers on the
time, race status, and any course corrections.
• A power boat full of spectators comes a little too close to the race path.
You use individual calling to contact the power boat and advise them to
stay clear of the race.
• You see a rowboat entering the area, but since it doesn't have a radio,
you can't communicate with the rowboat. You use all ships calling to
alert all the other boats in the area of the possible danger.

Calling a single station (Individual Call)

To call a single station with DSC, follow the steps below:
1. Press the
2. Choose the DSC Call sub-menu, then select Individual.
3. The radio displays the names listed in your directory; use
and
call and press the
If you want to call a station that is not in your directory, select Manual.
The radio prompts you to enter the MMSI number you want to call.
Enter the MMSI number the same way you enter directory entries (see
page 26) Enter all nine digits and press the
4. The radio prompts you to select a response channel. Use
and
When you reach the channel you want to use for a response, press the
SELECT-1W/25W
5. The radio displays the MMSI number you are about to call and asks
you to confirm. If you want to call the displayed MMSI number, select
Send. To cancel the call, select Cancel.
6. The radio automatically switches to channel 70 to transmit the call
request.
button to display the menu.
MENU-PA
buttons to highlight the directory entry you want to
CHANNEL DOWN
SELECT-1W/25W
buttons to scroll through the available channels.
CHANNEL DOWN
button.
button.
E-31
CHANNEL UP
button.
SELECT-1 /25
W W
CHANNEL UP