On-Ground External Magnetometer Calibration - uAvionix AV-30-E Installation Manual

13.2.4

On-Ground External Magnetometer Calibration

Prior to calibration, all installation steps and measurements from Section
11.3 AV-Mag External Magnetometer must be completed. Failure to
complete all installation steps will result in an invalid calibration.
Units with an external magnetometer (P/N UAV-1006321-001) require
an on-ground 12-point magnetic calibration procedure to be performed.
When calibration needs to be performed, in the absence of other flags, a
red flag (MAG CAL) will appear.
1. The external magnetometer calibration feature is found in the install
menu. Hold down the center button while applying power. The
installation menu can now be accessed until the next power cycle.
2. Move the aircraft to a location that is as level as possible and is far
from power lines, metal structures, or reinforcement steel
underground or nearby.
3. Enter the INSTALL menu and select AVMAG CAL, then press CALIB.
Note that on units without an external magnetometer, AVMAG CAL
will be disabled.
UAV-1004234-001, AV-30-E Installation Manual
Rev H
Figure 47 – MAG CAL Flag and AVMAG CAL Selection
Figure 48 – AVMAG Calibration Entry
The aircraft will need to be oriented to twelve headings,
each separated by 30 degrees. Calibration is sensitive to
the angle between each of the heading orientations; if an
114