Garmin GTX 328 Pilot's Guide - Page 7

To operate the Flight Timer, To operate the Count Up timer, To operate the Count Down timer - mode s transponder

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Timer Operation To operate the Flight Timer: 1. Press the FUNC Key until 'FLIGHT TIME' is displayed. 2. If the GTX 328 is configured with Automated Airborne Determination, the timer begins automatically when the unit senses that the aircraft has become airborne. The timer may be reset to zero at every take off, continue accumulating time at take off or may be controlled manually. 3. If desired, press START/STOP to pause or restart the timer. 4. Press CLR to reset the timer to zero. 5. If the timer is configured to start automatically it will stop when the Automated Airborne Determination senses that the aircraft is on the ground. To operate the Count Up timer: 1. Press the FUNC Key until 'COUNT UP' is displayed. 2. If necessary, press CLR to reset the Count Up timer to zero. 3. Press START/STOP to begin count up. 4. Press START/STOP again to pause the timer. 5. Press CLR to reset the timer to zero. To operate the Count Down timer: 1. Press the FUNC Key until 'COUNT DOWN' is displayed. 2. Press CRSR and use the 0 - 9 keys to set the initial time. All digits must be entered (use the 0 Key to enter leading zeros). 3. Press START/STOP to begin count down. 4. Press START/STOP again to pause the timer. 5. When the Count Down timer expires, the 'COUNT DOWN' banner is replaced with a flashing 'EXPIRED', and the time begins counting up. 6. Press CLR to reset the timer to the initial time value. Automatic ALT/GND Mode Switching If the GTX 328 is configured for Automated Airborne Determination, normal operation begins when take off is sensed. When the aircraft is on the ground the screen automatically displays GND. The transponder does not respond to ATCRBS interrogations when GND is annunciated. When a delay time is set in the Configuration Mode, the GTX 328 waits a specified length of time after landing before changing to GND mode. Failure Annunciation If the unit detects an internal failure, the screen displays FAIL. When FAIL is annunciated no transponder data is transmitted.

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Timer Operation
To operate the Flight Timer:
1. Press the
FUNC
Key until ‘FLIGHT TIME’ is displayed.
2.
If the GTX 328 is configured with Automated Airborne Determination, the timer begins
automatically when the unit senses that the aircraft has become airborne.
The timer
may be reset to zero at every take off, continue accumulating time at take off or may be
controlled manually.
3. If desired, press
START/STOP
to pause or restart the timer.
4. Press
CLR
to reset the timer to zero.
5.
If the timer is configured to start automatically it will stop when the Automated Airborne
Determination senses that the aircraft is on the ground.
To operate the Count Up timer:
1. Press the
FUNC
Key until ‘COUNT UP’ is displayed.
2. If necessary, press
CLR
to reset the Count Up timer to zero.
3. Press
START/STOP
to begin count up.
4. Press
START/STOP
again to pause the timer.
5. Press
CLR
to reset the timer to zero.
To operate the Count Down timer:
1. Press the
FUNC
Key until ‘COUNT DOWN’ is displayed.
2. Press
CRSR
and use the
0 - 9
keys to set the initial time.
All digits must be entered (use
the 0 Key to enter leading zeros).
3. Press
START/STOP
to begin count down.
4. Press
START/STOP
again to pause the timer.
5.
When the Count Down timer expires, the ‘COUNT DOWN’ banner is replaced with a
flashing ‘EXPIRED’, and the time begins counting up.
6. Press
CLR
to reset the timer to the initial time value.
Automatic ALT/GND Mode Switching
If the GTX 328 is configured for Automated Airborne Determination, normal operation
begins when take off is sensed.
When the aircraft is on the ground the screen automatically
displays GND.
The transponder does not respond to ATCRBS interrogations when GND
is annunciated.
When a delay time is set in the Configuration Mode, the GTX 328 waits a
specified length of time after landing before changing to GND mode.
Failure Annunciation
If the unit detects an internal failure, the screen displays FAIL.
When FAIL is annunciated
no transponder data is transmitted.