Magnetometer PCBA is a key component for aircraft navigation and attitude determination, integrating high-precision 3-axis magnetic sensor modules, signal processing chips, and communication interfaces. It measures the Earth’s magnetic field to determine aircraft heading, complementing GPS and inertial navigation systems to ensure navigation accuracy. Widely used in civil aircraft, military aircraft, and even space exploration missions, it provides critical orientation data for flight control. We adopt precision calibration technology and anti-interference design to ensure measurement accuracy, using industrial-grade components for durability, with 2 function test lines verifying performance to meet aerospace industry requirements.