What is the optimal filter value setting?
Most compasses measure the gravitation of the Earth to determine a horizontal reference. This measurement is important in calculating an accurate magnetic heading and is typically accomplished using accelerometers. Since accelerometers are, by nature, motion sensitive, most compasses will be affected by dynamic motion and vibration. Sparton digital compasses have been designed to be more tolerant of motion-induced errors by how they process the magnetic and acceleration data.
