What is one main objective of EMCON?

One main objective of EMCON, or Emission Control, is to limit electronic signatures of the ship. By reducing or controlling the use of electronic emissions, such as radar and communications signals, a vessel can minimize its detectability by enemy sensors. This is crucial in combat situations where maintaining a low profile can enhance survivability and operational effectiveness. The reduction of electronic signatures helps to conceal a ship's position, capabilities, and intentions from adversaries, thereby providing a tactical advantage.

The other options, while potentially relevant in different contexts, do not align with the primary objective of EMCON. For example, increasing communication capabilities is contrary to the goal of limiting emissions. Enhancing radar detection would counter the purpose of avoiding detection, and facilitating naval exercises does not specifically relate to the core intent of EMCON, which focuses on stealth and protection during operations.