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DRAFT COPY
Some FAULT indications can be recovered by switching the transponder off and back
on again, although in all cases a FAULT code implies that there is a fault with the
transponder or the installation. Note the FAULT message at the bottom of the screen
and pass that information to your avionics maintenance organisation.
Configuration Mode
The system is configured when it is first installed by your avionics supplier.
Configuration items include the Mode S aircraft address, the interface to the other
aircraft systems, the aircraft category, and the pre-programmed values for VFR squawk
code. To view or change these settings you must use Configuration Mode.
Do not use Configuration Mode in flight. Check with your avionics installer
before changing the configuration.
To enter configuration mode, hold down the FUNC button whilst switching on the
transponder. Configuration items can be changed using the numerical buttons and
ENT button. Pressing FUNC advances to the next configuration item.
When configuration is complete, switch the transponder off. When it is switched back
on the transponder will use the new configuration.
Low Temperature Operation
The TT32 and TT32G are certified to operate correctly down to -20C, but at low
temperatures the display may be impaired. On a cold day you may need to wait for
the cockpit to warm up to ensure normal operation.
