190-00734-11
GTX 33X and GTX 3X5 ADS-B Maintenance Manual
Rev. 6
Page 3-4
Function Display
PRESSURE ALT
Displays the altitude data supplied to the GTX 330 in feet, hundreds of
feet (flight level), or meters, depending on configuration.
FLIGHT TIME
Displays the flight time, controlled by the
START/STOP
key or by one
of four airborne sources (squat switch, GPS ground speed recognition, air
data airspeed recognition, or altitude increase) as configured during
installation. The timer begins when the GTX 330 determines that the
aircraft is airborne.
ALT MONITOR
Controlled by
START/STOP
key. Activates a voice alarm and warning
annunciator when altitude limit is exceeded.
OAT/DALT
Displayed when the GTX 330 is configured with temperature input.
Displays outside air temperature and density altitude.
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 time is entered with the
0
–
9
keys.
CONTRAST
This page is only displayed if manual contrast mode is selected in
Configuration mode. Contrast is controlled by the
8
and
9
keys.
DISPLAY
This page is only displayed if manual backlighting mode is selected in
Configuration mode. Backlighting is controlled by the
8
and
9
keys.
ADS-B TX
Controlled by
START/STOP
key. Starts/stops extended squitter
function.
FLIGHT ID
If the GTX 33X is using software v8.02 or later and the system is
configured to allow the pilot to edit the flight ID, then the flight ID may
be entered using the
CRSR
key. Otherwise the flight ID is set in
configuration mode and cannot be changed during normal operation.
