Quick Start Guide
Switching Between 1 W and 25 W Transmitting Modes
You can control the transmitting power of the radio. LO (1 W) is used for local
transmissions, and HI (25 W) is used for distance and distress transmissions.
When two signals broadcast on the same frequency, a VHF radio receives only
the stronger of the two signals. You should transmit calls other than distress calls
using the lowest power setting that allows you to communicate, to reduce the
possibility that your transmissions interfere with the transmissions of others.
In the USA frequency band, transmissions on channels 13 and 67 must be low
(1 W) by default.
1
Select HI/LO.
2
Select 1W or 25W.
Digital Selective Calling
Digital Selective Calling
NOTE: Before you can use DSC capabilities, you must enter a Mobile Marine
Safety Identity (MMSI) number. An MMSI number identifies each DSC radio, like
a telephone number.
Digital Selective Calling (DSC) is a key component of the Global Maritime
Distress and Safety System (GMDSS). DSC enables VHF radios to place and
receive digital calls directly with other vessels and shore stations, including the
USA and Canadian Coast Guards. Your radio includes full Class-D DSC
capabilities.
For more information about DSC on your device, including using DSC for distress
calls, see the online owner's manual (page 7).
NOTE: The device disables DSC automatically when you turn on ATIS
(page 6).
Entering Your MMSI Number
NOTICE
You can enter your MMSI number only once. If you must change your MMSI
number after entering it, you must take your radio to your
Garmin
®
dealer for
reprogramming.
The Mobile Marine Safety Identity (MMSI) number is a nine-digit code that acts
as a DSC self-identification number, and it is required in order to use the DSC
capabilities of your device. You can obtain an MMSI number from the
telecommunications authority or ship registry for your country. In the USA, you
can obtain an MMSI number from these sources.
•
Federal Communications Commission (FCC): assignments are recognized
internationally
• BoatU.S.
®
, Sea Tow
®
, or United States Power Squadrons
®
: assignments are
for USA waters only
1
Select MENU > DSC > MY MMSI.
2
Turn SELECT clockwise or counter-clockwise to increase or decrease the
number.
3
Press SELECT to accept the number.
4
Repeat steps 2 and 3 for each number in the sequence.
5
Select ACCEPT.
The device prompts you to confirm your identity.
6
Enter your MMSI number again, and select ACCEPT.
If the MMSI numbers you entered do not match, a message appears.
7
If necessary, select RETRY and enter the number again.
Quick Start Manual 5