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LMM for the Kodiak 100 Page 7-11
190-02102-00 Rev.4
11. Using the transponder test set, make sure the following ADS-B Out parameters
are being transmitted:
a) NACv ≥1
b) SDA ≥ 2
c) SIL ≥3
d) NACp ≥8
e) NIC ≥7
12. If dual GPS sources are connected to the GTX, repeat steps 6 through 10 for the
other GPS source.
7.5.3 GDC 72 Testing
Per Part 43 Appendix E, paragraph (b)(2), Garmin specifies a test procedure equivalent
to Part 43 Appendix E, paragraph (b)(1) with two exceptions. The tests of sub-para-
graphs (iv) (Friction) and (vi) (Barometric Scale Error) are not applicable because the
digital outputs of the GDC 72 are not susceptible to these types of errors.
7.5.4 GTP 59 OAT Probe Check
Check the outside air temperature (OAT) measurement shown on the PFD to ensure it
reads ambient temperature.
7.5.5 GRS/GMU Calibration Procedure
After mechanical and electrical installation of the GRS 79 AHRS and GMU 44
magnetometer have been completed and before operation, a set of post-installation
calibration procedures must be carried out. Refer to the Calibration Procedures.
7.6 GRS 79 and GMU 44(B) AHRS Testing
After replacement of a GRS 79 and/or GMU 44(B) has been completed, before
operation, a set of calibration procedures must be performed. Table 7-1 describes the
necessary calibration procedures.
During calibration, the message ‘Calibration Error’ may appear even
though the Mag Interference test passed. Troubleshooting shows no mag-
netism issues, swapping the GMU does not correct the problem, and there
are no wiring issues. Perform the following:
1. Check the relative orientation between the GRS and the GMU.
2. Change the location where the Mag Cal is being conducted.
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