Dynamic tuned gyroscope north finder by double degree of freedom dynamic tuning gyro mechanical rotation device and signal calculation circuit. Two degree of freedom gyro has two basic characteristics, precession and fixed axis. Using gyro to be sensitive to the earth's rotation speed in the X, Y axis component of different products reference axis azimuth information. Operation is simple, to meet the automotive environment, North seeking, used in directional antennas, vehicle orientation, radar directed
