What is the primary purpose of a 'TH' button on radar systems?

The primary purpose of a 'TH' button on radar systems is to maintain target tracking. This feature is crucial for ensuring that the radar continues to follow a designated target accurately, allowing operators to observe the target's movement and make informed decisions based on that data. Maintaining target tracking ensures effective surveillance and engagement in various operational scenarios, from air defense to naval engagements.

When a target is locked and the 'TH' function is activated, the radar system continuously updates the target's position based on its movement, providing real-time information that is essential for tracking and intercepting fast-moving objects. This capability is vital for successful operations, particularly in environments where multiple targets may be present.