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MultiNav Pro+ sensors - magnetometer calibration after mounting near metal?

Christina ScottJune 15, 2026
Hey everyone, working on a tracker build where I'm mounting the MultiNav Pro+ sensors module inside a metal enclosure (aluminum, not steel, if that matters). I know magnetometers are notoriously finicky around ferrous stuff but I wasn't expecting aluminum to cause issues - turns out it's still messing with my heading readings pretty bad. I'm getting drift of like 15-20 degrees just depending on orientation, which is way outside what I'd expect from a module with a proper 3-axis mag onboard.
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