Garmin G1000 Pilot's Training Guide (-05) - Page 17

Ground Lesson 4 TRANSPONDER OPERATION Objectives Upon completion of this lesson, the pilot should be familiar and comfortable with the operation of the integrated transponder controls located on the PFD of the GIFD System. This includes the selection of the transponder operating mode, squawk code entry, and IDENT activation. Resources • GIFD Pilot's Guide • GIFD PC-based Simulator Exercise 4.1: Operating Modes and Code Entry 1. To which transponder operating mode does the GIFD System default when it is first powered up, if equipped with the Garmin Mode S Transponder (GTX 33)? The Transponder begins operating in Ground mode, indicated by the letters 'GND' in the Transponder Status Box. 2. Describe the process for entering a newly assigned transponder code. 1. On the PFD, press the XPDR Softkey 2. Press the CODE Softkey. 3. Use the appropriate digit softkeys to enter the assigned code. On certain airframes, the transponder code can also be entered using the numeric keypad on an MFD/PFD Control Unit (GCU). 3. Which Garmin LRU failure will cause the GIFD to lose Mode C/S capability? If an Air Data Computer (GDC 74) fails, the GTX 33 Transponder will lose the pressure altitude source, leaving it to operate in Mode A only. 4. Equipped with a GTX 33 Transponder, how is the GIFD able to receive traffic information? Once the aircraft is airborne, the GTX 33 Transponder is able to receive traffic data and display it graphically on the PFD/MFD maps. The aircraft must be within the coverage of terminal Mode S radar sites to display TIS information. 5. What is acquisition squitter? Acquisition squitter is transponder transmission that is sent periodically regardless of the presence of interrogations. Its purpose is to make Mode S ground stations and Traffic alert and Collision Avoidance System (TCAS)-equipped aircraft aware of the presence of Mode S-equipped aircraft. 190-00368-05 Rev. B GIFD Pilot's Training Guide 13