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.
Tune.the.radio.to.the.channel.you.want.to.use.as.the.response.
channel.
2.
Press.and.hold.the.
menu.
Choose.the.DSC Call sub-menu, then select Individual.
3.
4.
The.bottom.line.of.the.display.shows.the.names.listed.in.your.directory;.
use.
you.want.to.call.and.press.the.
switches.to.channel.70.to.transmit.the.call.request..(To.close.the.
directory without making a call, press the
the.DSC Call.sub-menu.).
When the other station accepts the call, both radios switch to the
5.
selected.response.channel.for.voice.transmission..
H/L/MENU
.and.
CHANNEL UP
CHANNEL DOWN
.button.for.two.seconds.to.display.the.
buttons to find the directory entry
.button..The.radio.automatically.
SELECT
H/L/MENU
E-31
.button.to.return.to.