West Marine VHF580 사용자 설명서

When you have entered the last value, the radio returns to the GPS Setup menu.

using Digital seleCtiVe Calling (DsC) Features

What is DsC?

Digital Selective Calling (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

Your radio supports the following DSC features:

Feature

Menu Item

Function

Individual Call

Individual

Contact another vessel from your directory.

Group Call

Group

Contact all vessels that share your group MMSI

code.

All Ships Call

All Ships

Broadcast to all vessels within range (used for

safety or advisory messages).

Position Request

POS Request

Request the current location of another vessel.

Position Send

Transmit your current location to another

vessel.

Test Call

Test

Make sure your radio is working and configured

correctly/

Name and MMSI