SV-ADAHRS-200/201 Installation and Configuration
5-6 SkyView System Installation Guide - Revision AA
surfaces). Thus, you must avoid mounting the module close to sources of dynamic magnetic
fields, avoid wires that carry large amounts of current, and use non-magnetic fasteners for
installation (see caution below). We recommend that the SV-ADAHRS-200/201 or SV-MAG-236
be a minimum of 2 feet (0.61 meters) from sources of magnetic fields is usually adequate; more
separation, if possible, is better.
Stainless steel mounting hardware is not always non-magnetic, and thus is not
recommended. The best type of mounting hardware (screws, bolts, washers, AND
nuts) to install the SV-ADAHRS-200/201 (if SV-MAG-236 is not installed) is brass. If
SV-MAG-236 is installed, then type of mounting hardware used for the SV-
ADAHRS-200/201 is not critical.
If you use a magnet to test whether possible interfering materials are non-
magnetic, do not actually touch the magnet to the material you are testing, as this
contact can cause the material you are testing to become magnetized.
Survey the proposed SV-ADAHRS-200/201 location with a handheld compass.
Move a handheld compass throughout the space surrounding your intended
location to get a rough idea of the suitability of the area. Note that this test should
be done with major aircraft systems operating (e.g., strobe lights and radios on)
because some systems can cause magnetic interference. If the compass needle
deviates significantly from magnetic North or cycles back and forth, the location is
not ideal for ADAHRS installation (if an SV-MAG-236 is not installed).
Figure 47 – ADAHRS Installation Orientation
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