Uniden UM380 English Owners Manual - Page 22

What is DSC?, Advanced DSC features, What is an MMSI number? - range

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Page 22 highlights

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 Individual Call Group Call All Ships Call Position Request Position Send Test Call Name and MMSI Directory Standby Mode Received Call Log Menu Item Individual Group All Ships POS Request Position Send Test Directory Standby Receive Log 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 or advisory messages). Request the current location of another vessel. Transmit your current location to another vessel. Make sure your radio is working and configured correctly. Store a list of 20 names and MMSI identification codes for DSC calls. Automatically respond to all DSC calls within an "Unavailable" status. Display the last 10 distress calls received by the radio and the last 20 general calls. What is an MMSI number? In order to use DSC features, you must be assigned an MMSI number and program that number into your radio. There are two kinds of MMSI numbers: individual numbers for use by single boats and group numbers for use by fleets, boating organizations, event coordinators, etc. 18 English UM380_20101221.indd 18 4/13/2011 11:25:11 AM

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18
English
USING DIGITAL SELECTIVE CALLING ²DSC³ 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
Position Send
Transmit your current location to another
vessel.
Test Call
Test
Make sure your radio is working and configured
correctly.
Name and MMSI
Directory
Directory
Store a list of 20 names and MMSI identification
codes for DSC calls.
Standby Mode
Standby
Automatically respond to all DSC calls within an
“Unavailable” status.
Received Call Log
Receive Log
Display the last 10 distress calls received by the
radio and the last 20 general calls.
What is an MMSI number?
In order to use DSC features, you must be assigned an MMSI number and program that
number into your radio. There are two kinds of MMSI numbers: individual numbers for
use by single boats and group numbers for use by fleets, boating organizations, event
coordinators, etc.
UM380_20101221.indd
18
4/13/2011
11:25:11 AM