Figure 5-7, Magnetometer Interference Test - Garmin G1000 System Maintenance Manual

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5.15.4 Calibration Procedure E: Magnetometer Interference Test
A magnetometer interference test is available for troubleshooting and/or verifying a magnetically 'clean'
installation of the GMU 44. This test exercises various devices on the aircraft that could potentially
affect the magnetic field as measured by the GMU 44.
This test is used to validate that no electronic device
a magnetic field sufficient to interfere
It is highly recommended that this test be performed after installation or maintenance of
electrical components on the aircraft and/or for troubleshooting the GMU 44.
1. Initiate the AHRS magnetometer interference test procedure by performing the following steps:
2. On PFD1, enter Configuration Mode and go to GRS/GMU Calibration page as shown in Figure
5-7.
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
190-00716-01
NOTE
with the operation of the GMU 44 magnetometer.

Figure 5-7, Magnetometer Interference Test

or
magnetized
components produce
Page 5-71
Revision 4

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