Garmin SA01933LA_D Manual de instrucciones descargar pdf (Pagina 12)

Instructions for Continued Airworthiness G600, GNS 530W, GNS 430W, 190-01080-05 Rev. 2

GMA 347, GTX 330D, GMX 200, WSI AV-200 Cessna 208/208B Page 12 of 29

2.5.1 GTX 330D Regulatory Testing

With the transponders operating in normal mode, the following regulatory tests are required to be

performed:

• Altitude Reporting Equipment Tests in accordance with 14 CFR Part 91.411 and Part 43

Appendix E

• ATC Transponder Tests and Inspections in accordance with 14 CFR Part 91.413 and Part 43

Appendix F

These regulatory tests require the use of a Mode S transponder ramp tester. Specific instructions for

operating the ramp tester are contained in the applicable operator's manual.

Diversity Isolation Testing

To satisfy the requirement for Part 43 Appendix F subparagraph (e), transponder diversity isolation must

be verified. To successfully test diversity isolation, the installer must take the following action:

1. Remove power from the ADC, GNS 530W, and GNS 430W for the duration of the diversity isolation

test.

2. Cycle power to the GTX 330D and enter configuration mode.

3. On the ADS-B TX Page, select Pilot Set for ADS-B TX.

4. Cycle power to the GTX 330D and allow the unit to initialize normally.

5. Place the GTX 330D in ‘ground’ operating mode by pressing and holding the STBY key until the

operating mode changes to ‘GND’. At this point the technician should confirm the transponder’s

Mode S airborne state is ‘AIR’ by observing the ramp tester.

6. Temporarily disable the ADS-B Extended Squitter function on each GTX 330D by pressing the

FUNC key until the ADS-B TX page is displayed, then toggle the ADS-TX function off using the

START/STOP key.

7. The diversity isolation test may now be conducted. Note that it is critical to isolate the antenna

under test from the antenna not being tested to achieve passing results of ≥20 dB isolation. Use

proper testing practices and follow the test equipment manufacturer’s recommendations. It is

recommended that an antenna isolating device be utilized for this test.

8. After completing tests on all four transponder antennas, the ADC, GNS 530W, and GNS 430W

may be powered back on and the ADS-B TX function re-enabled.

9. If desired, power cycle the GTX 330D and enter configuration mode. On the ADS-B TX Page,

select Enabled for the ADS-B TX setting.

2.5.2 GTX 330D ADS-B Out Testing

Perform the following procedure any time either GPS position source is replaced/modified. The test is

performed using a transponder ramp test set, such as the Aeroflex IFR-6000 or TIC TR-220 (Note: S/W

v5.30 or later is required on the TR-220). For instructions on operating the ramp tester, refer to the

manufacturer’s documentation.

1. Ensure the aircraft is in a location where a GPS signal can be received (e.g. outdoors with a clear

view of the sky).

2. Power on the aircraft/avionics and ensure that both transponders are powered on.

3. If the transponders are configured for pilot control of the ADS-B transmitter, press the FUNC key

until “ADS-B TX” is displayed and ensure that ADS-B TX is “ON” for both transponders (press the

START/STOP key to toggle between ON and OFF).

4. Select XPDR 1 using the transponder selector switch.

5. Remove power from the GNS 430W by pulling the NAV 2 circuit breaker. Ensure the GNS 530W

is operating normally and has acquired a GPS position.

6. Temporarily configure XPDR 1 into “airborne” mode as follows:

a. Start XPDR 1 in configuration mode (hold the OFF key to power down the unit, then hold

the FUNC key and press the ON key).

b. Press the FUNC key until the “SQUAT SWITCH?” page is displayed. Then use the

CRSR and 8/9 keys to change the setting to “YES” and the “SENSE” to “LOW. “ Press

the CRSR key until no fields are highlighted to save the changes.

7. Restart XPDR 1 in normal operating mode and select ALT mode.

8. Using the transponder test set, verify the following ADS-B Out parameters are being transmitted:

• NACv value of 1 or greater

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Garmin SA01933LA_D Manual de instrucciones Pagina 12

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