
Section 922
GARMIN GTN 635/650/750
Page Date: 6. November 2012 922 - 11
Pilot´s Operating Handbook
EXTRA 330LX
STANDBY
1. Touch the Mode key to show a list of available modes (directly accessible from the
transponder operation page on the GTN 750). Touch the Standby key to place the transponder
into Standby mode. The transponder will still be powered, but will not transmit information. The
active transponder indication and Ident annunciation will be grayed to show they are disabled.
GROUND
1. Touch the Ground key to place the transponder into Ground mode. Mode S replies will be
allowed in Ground mode.
ON
1. Touch the On key for Mode A operation. The transponder is "On" and will transmit its squawk
code when interrogated.
ALTITUDE REPORTING
1. Touch the Altitude Reporting key for Mode C operation.
2. The transponder will be "On" and will transmit its squawk code and altitude when interrogated.
An "ALT" annunciation will appear when the squawk code is transmitted.
VFR
1. Touch the VFR key to set the VFR squawk code (1200 or 7000 depending on location, see
below).
SELECTING A SQUAWK CODE
The selected squawk code will always be in use. As you change the squawk code, the original code
will be used untill you are finished selecting the new code.
1. Touch the transponder squawk code window at the top of the display.
2. The XPDR page will be displayed. The Squawk Code value will be active for selection for use by
the active transponder.
3. Touch the numeric keypad, or use the rotary knobs, to select the desired Squawk Code.
4. Then, touch Enter or press the small right knob.
5. The selected Squawk Code will be shown in the XPDR window at the top of the display.
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