Garmin GTX GTX 330D Installation Manual - Page 30

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Garmin GTX GTX 330D Installation Manual
• Important Codes:
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.

5.1.3 Function Display

PRESSURE ALT  Displays the altitude data supplied to the GTX 330 in feet, hundreds of feet (i.e., flight
FLIGHT TIME  Displays the Flight Time, controlled by the START/STOP key or by one of three
ALTITUDE MONITOR  Activates a voice alarm and warning annunciator when altitude limit is
COUNT UP TIMER  Controlled by START/STOP and CLR keys.
COUNT DOWN TIMER  Controlled by START/STOP, CLR, and CRSR keys. The initial Count Down
CONTRAST  This page is only displayed if manual contrast mode is selected in Configuration Mode.
DISPLAY  This page is only displayed if manual backlighting mode is selected in Configuration Mode.
Backlighting is controlled by the 8 and 9 keys.
GTX 330 Installation Manual
190-00207-02
level), or meters, depending on configuration.
airborne sources (squat switch, GPS ground speed recognition or altitude increase) as
configured during installation. The timer begins when the GTX 330 determines that the
aircraft is airborne.
exceeded.
time is entered with the 0 – 9 keys.
Contrast is controlled by the 8 and 9 keys .
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