Garmin International Inc 0211501 Manuel D’Utilisation

190-01553-01  Rev. 1TP

10

Press to view Menu options on the right side of the screen.  (ICS VOL, 
ICS SQ, 

♫ VOL, SETUP and ABOUT).

The Power/Volume/Squelch knob located in the bottom left corner 
of the bezel controls audio volume for the Com radio. Rotating the 
knob clockwise past the detent turns power on and counter-clockwise 
turns power off. When the Com radio is active, press the Power/
Volume/Squelch knob to toggle automatic squelch control On/Off for 
the Com radio. 

The GTR 200 features an automatic squelch that rejects many localized 
noise sources. You may override the squelch function by pressing the 
Power/Volume/Squelch knob. This facilitates listening to a distant station 
or setting the desired volume level. 

To override the automatic squelch, press the Power/Volume/Squelch 
knob momentarily. Press the Power/Volume/Squelch knob again to 
return to automatic squelch operation. A “SQ” indication appears to 
the left of the active Com frequency window in the upper left corner of 
the display when automatic squelch is overridden. 

User-defined Softkeys, defined in config mode (PILOT PTT  (P

), 

MUSIC ON/OFF (

♫), USER LIST (USR), Pilot Isolation (ISO) or TUNE 

EMERGENCY (EMR)).  Softkeys are also used for menu navigation.

User-defined Softkey Labels, defined in config mode.

Active Frequency.

Active Frequency Identifier.  Four letter ICAO identifier followed by the 
three or four letter Frequency Type. 

Standby Frequency.

DRAFT