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# NOTE: Be certain any manually-entered position is correct. If you enter the wrong position
and then make a DSC distress call, you will be telling the arrows to adjust each of the
values in turn.
CALL
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 called 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-SCAN to 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:
ENT
1W/25W
ENT
1W/25W
ENT
1W/25W
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