Which of the following is NOT a function of Link 16 terminals?

The function of Link 16 terminals primarily revolves around secure data exchange, situational awareness, and tactical communication among military assets. When analyzing the capabilities of Link 16 terminals, it's important to note what they are designed to accomplish.

Secure voice communication is typically not a standard function of Link 16 terminals. While they have advanced capabilities for data communication, the transmission of secure voice is generally handled by other systems that are specially designed for that purpose. The Link 16 system focuses on sharing tactical messages, operational data, and other information critical for mission coordination and situational awareness.

Data recording is a function that allows for the capture of mission data, which can be essential for post-mission analysis. Built-in test capabilities enable regular self-diagnosis and troubleshooting to ensure systems are operational and effective. Relaying messages is integral to the system, facilitating communication between various platforms and providing an exchange of essential tactical information.

Understanding these roles allows for clarity on the specialized functions that Link 16 terminals serve, affirming why secure voice does not belong to that specific category.