Uniden UM380BK Using Digital Selective Calling DSC Features, What is DSC?, Advanced DSC features

1.Display the normal menu and choose the Setup sub-menu.

2.Select GPS Setup and then choose Position Set.

3.The GPS manual input screen displays; the fields to be entered blink. The cursor highlights the hour. Use CHANNEL UP and CHANNEL DOWN to set the displayed hours to match coordinated universal time (UTC, also call Greenwich Mean Time and Zulu Time). When the display matches UTC time, press ENT-1W/25W. If you make a mistake while entering a digit, press CLR-SCANto erase the wrong number and moved the cursor to the left digit.

4.The cursor moves to highlight the minutes. Use CHANNEL UP and CHANNEL DOWN to adjust the minutes and press ENT-1W/25W.

5.The cursor moves to highlight the degrees latitude. As you update each value, the cursor moves to the next value in turn. At each number, use CHANNEL UP and CHANNEL DOWN to adjust the number and press ENT-1W/25W.

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	Position Send	Transmit your current location to another
		vessel.

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