Garmin 190-01098-00 Manuel D’Utilisation

Basic Operation

IMPORTANT: To use the DSC capabilities of your radio, you must first enter an MMSI 

number. See 

 for more information. 

To turn on the radio, press and hold the 

 key (North American models) or 

 key 

(International models). If you have not entered a Mobile Maritime Safety Identity (MMSI) 

number, you must press the 

 key to access the Home screen. To turn off the radio, 

press and hold the 

 key or the 

 key.

TIP: For information on enabling auto power-on, see 

.

TIP: To set the appropriate volume level, first turn the squelch level to off, and then adjust 

the volume. See below for more information on adjusting the squelch level.

1.  Press the 

 key until the screen displays “CURRENT VOLUME.”

2.  Turn the 

 knob on the handset to adjust the level.

1.  Press the 

key until the screen displays “CURRENT SQUELCH.”

2.  When receiving, rotate the 

 knob counterclockwise until you hear audio.

3.  Rotate the 

 knob clockwise until there is no background noise.

Turn the 

 knob clockwise or counterclockwise to change channels. See 

lists of International, Canadian, and USA channels.

1.  Select the appropriate channel.
2.  Check to ensure that the channel is clear before transmitting. The Federal 

Communications Commission (FCC) and international regulations require that you not 

obstruct the communications of others.

3.  Press the 

 key on the handset to transmit on the current channel. The 

TX

 icon is 

displayed at the top of the screen.

4.  Speak your message and release the 

key.

NOTE: Five minutes is the maximum amount of time for transmission. After you have 

pressed 

 key for five minutes, PTT is disabled until you release the 

 key.