Using Digital Selective Calling (Dsc) Features; What Is Dsc; Advanced Dsc Features - West Marine VHF550 Manual Del Usuario

Using Digital Selective Calling (DSC) Features

Using Digital Selective Calling (DSC) Features

What is DSC?

Digital.Selective.Calling.or.DSC.is.a.standard.that.allows.you.to.call.other.
stations using their unique identification code (the Maritime Mobile Service
Identity or MMSI number), just like you would call a phone number. To call
another station, just enter that station's MMSI number and choose the
voice.channel.you.want.to.talk.on..The.radio.uses.channel.70.to.transmit.
your.MMSI.number.to.the.other.station.along.with.the.voice.channel.you.
requested. If the other station accepts your call, both radios automatically
switch.to.the.requested.voice.channel.so.you.can.talk.to.the.other.station.
DSC.provides.a.system.for.automated.distress.calls..At.the.touch.of.a.
button, the radio can transmit your MMSI number, the nature of your
distress, and your current position based on data from your GPS receiver.
The.radio.repeats.the.distress.call.every.few.minutes.until.it.receives.an.
acknowledgement.
The.DSC.standard.dedicates.a.VHF.channel—channel.70—to.digital.
transmissions.only..Since.digital.transmissions.require.less.bandwidth.voice.
transmissions, channel 70 avoids the problems of busy voice channels.

Advanced DSC features

The.VHF550.supports.the.following.DSC.features:
Feature
Individual.Call
Group.Call
All.Ships.Call
Position Request
Position.Send
Name.and.MMSI.
Directory
Standby.Mode
Received Call Log Call Wait
Menu Item
Individual
Group
All.Ships
POS Request
POS.Send
Directory
Standby
Function
Contact.another.vessel.from.your.directory.
Contact.all.vessels.that.share.your.group.
MMSI.code.
Broadcast.to.all.vessels.within.range.(used.
for safety, urgency, or advisory messages.)
Request the current location of another
vessel.
Transmit.your.current.location.to.another.
vessel.
Store.a.list.of.20.names.and.MMSI.
identification codes for DSC calls.
Automatically.respond.to.all.DSC.calls.with.
an "Unavailable" status.
Display.the.last.10.distress.calls.received.by.
the.radio.and.the.last.20.general.calls.
E-25