Using Digital Selective Calling (DSC) Features
30
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
CALL-MENU
to display the call menu.
2. Select
Individual
.
3. The radio displays the names listed in your directory; use
CHANNEL UP
and
CHANNEL
DOWN
to choose the directory entry you want to call and press
ENT-1W/25W
.
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 22) Enter all nine digits and
press
ENT-1W/25W
.
4. The radio prompts you to select a response channel. Use
CHANNEL UP
and
CHANNEL
DOWN
to scroll through the available channels. When you reach the channel you
want to use for a response, press the
ENT-1W/25W
button.
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.
•
When the other station accepts the call, both radios switch to the selected
response channel for voice transmission.
•
If the other station cannot respond on the channel you selected, the radio displays
Not support CH
.
