Where is the aircraft compass typically calibrated?

The calibration of the aircraft compass is typically performed in a magnetically quiet paved area. This environment is crucial because it minimizes the influence of magnetic fields from surrounding metal structures, vehicles, or electronic equipment, which can distort compass readings. A magnetically quiet location allows for an accurate adjustment and ensures that the compass can provide reliable navigation data during flight.

Calibrating in such an area helps to account for and eliminate any magnetic interference that could lead to erroneous readings, which is particularly important for flight safety and navigation accuracy.