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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-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.
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.