What is the purpose of a gyro repeater on a ship?

The purpose of a gyro repeater on a ship is to provide a visual representation of heading information derived from the ship's gyroscopic compass. The gyro repeater shows the same data that the primary gyroscope is measuring, allowing navigators and officers in different parts of the ship to access accurate heading information without having to go directly to the location of the primary gyro. This is essential for maintaining precise navigation, as it ensures that everyone on the bridge or in key operational areas is informed of the ship's orientation at all times.

The ability to display the same reading as the primary gyro ensures continuity of information, which is crucial for safe maneuvering and navigation, especially in complex environments.