Garmin GTXTM 330 Manuale Utente

1200



 

The VFR code for any altitude in the US (Refer to ICAO standards elsewhere)

7000



 

The VFR code commonly used in Europe (Refer to ICAO standards)

7500



 

Hijack code (Aircraft is subject to unlawful interference)

7600



 

Loss of communications

7700



 

Emergency

7777



 

Military interceptor operations (Never squawk this code)

0000



 

Military use (Not enterable)

Avoid selecting code 7500 and all codes in the 7600-7777 range.  These codes trigger 

special indicators in automated facilities.  An aircraft’s transponder code is used for ATC 
tracking purposes, therefore exercise care when making routine code changes.

IDENT



 

Pressing the IDENT key activates the Special Position Identifi ca-

tion (SPI) Pulse for 18 seconds, identifying your transponder return from 
others on the air traffi c controller’s screen.  The word ‘IDENT’ will appear in 
the upper left corner of the display while the IDENT mode is active.

VFR



 

Sets the transponder code to the pre-programmed VFR code selected 

in Confi guration Mode (this is set to 1200 at the factory).  Pressing the VFR 
key again restores the previous identifi cation code.

FUNC



 

Changes the page shown on the right side of the display.  Display 

data includes Pressure Altitude, Flight Time, Count Up and Count Down 
timers.  In the Confi guration Mode, steps through the function pages.

START/STOP



 

Starts and stops the Altitude Monitor, Count Up, Count 

Down and Flight timers.  In confi guration mode, steps through functions in 
reverse.

CRSR



 

Initiates starting time entry for the Count Down timer and cancels 

transponder code entry.  Returns cursor to last code digit within fi ve sec-
onds after entry.  Selects changeable fi elds in Confi guration Mode.

CLR



 

Resets the Count Up, Count Down and Flight timers.  Cancels the 

previous keypress during code selection and Count Down entry.  Returns 
cursor to the fourth code digit within fi ve seconds after entry.  Used in 
Confi guration Mode.

8



 

Reduces Contrast and Display Brightness when the respective fi elds are 

displayed and enters the number eight into the Count Down timer.  Used 
in Confi guration Mode.

9



 

Increases Contrast and Display Brightness when the respective fi elds are 

displayed and enters the number nine into the Count Down timer.  Used in 
Confi guration Mode.