Which component is part of the steer control console responsible for navigation aid?

The Gyro Compass Repeater is a crucial component of the steer control console that provides navigational aid. It displays the heading of the vessel as determined by the primary gyrocompass, allowing navigators to maintain course accurately. This information is vital for safe navigation, especially in challenging conditions where precise heading information is necessary to avoid hazards and ensure the vessel is on the correct trajectory.

In contrast, while other options have their own roles on a ship, they do not primarily serve the function of navigation aid in the same way. The anchor winch is used for handling the anchor, the emergency light is essential for safety during power outages or emergencies, and the depth sounder provides information about the water depth beneath the vessel but does not assist with the direction or heading of the ship. Therefore, the Gyro Compass Repeater stands out as the component specifically designed to aid in navigation.