Gyro Repeater is electrically connected to the Master Gyro Compass which receives and indicates true direction. Gyro Repeaters are mounted on the bridge wings. Gyro repeaters on the bridge wings are used in taking bearings on objects outside the ship. Movable sighting vanes on the face of the gyro repeaters are aimed at the object in the same manner in which rifle sights are lined up. True bearings are read directly by observing the degree on the compass card with which the crossbar of the sighting vane lines up. Relative bearings may be read from an outer dumb compass ring on the repeater stand. True bearing is the direction of an object from the observer, measured clockwise from true north.