Garmin 328 Pilot's Manual - Page 6
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Function Display
Altitude Trend Indicator
When the 'PRESSURE ALT' page is displayed, an arrow may be displayed to the right of
the altitude, indicating that the altitude is increasing or decreasing. One of two sizes of arrows
may be displayed depending on the vertical speed rate. The sensitivity of these arrows is set by
an authorized Garmin Aviation Service Center.
The GTX 328' s options are normally set at time of installation. To request any changes of
the GTX 328 parameters, contact an authorized Garmin Aviation Service Center.
PRESSURE ALT: Displays the altitude data supplied to the GTX 328 in feet,
hundreds of feet (i.e., flight level), or meters, (dependent upon installation
configuration.
FLIGHT TIME: Timer start is configured as either Manual or Automatic.
When Manual, displays the Flight Time, controlled by the START/STOP
and CLR keys. When Automatic, the timer begins when take off is sensed.
ALTITUDE MONITOR: Controlled by START/STOP Key. Activates a
voice alarm and warning annunciator when altitude limit is exceeded.
OAT/DALT: Displayed when the GTX 328 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 during installation configuration. Contrast is controlled by the 8
and 9 keys.
DISPLAY: This page is only displayed if manual backlighting mode is selected
during installation configuration. Backlighting is controlled by the 8 and 9
keys.