Suppression modes are intended to improve interoperability between Link 16 and ESM.

• A. These modes help with the interoperability of Link 16 (which has a high duty cycle) and ESM (which is designed to be sensitive to emissions)
• B. They reduce the need for encryption
• C. They increase Link 16 data rate
• D. They disable all ESM monitoring

Answer: (A)

Suppression modes are about shaping how Link 16 emissions appear to the surrounding spectrum so they don’t overload or reveal a network to hostile sensors. Link 16 uses a high duty cycle, meaning it transmits often and for extended portions of time. ESM systems are designed to detect and characterize emissions, so without suppression, those frequent transmissions can be easy to detect and track. Suppression modes reduce or modify transmission characteristics—such as when, how often, or with what power certain signals are sent—so the Link 16 network can operate without flooding or revealing itself to ESM, enabling better coexistence and interoperability in a contested environment.

This approach aligns with the goal of making Link 16 functional in the presence of sensitive ESM receivers, rather than relying on encryption adjustments, increasing data rate, or turning off monitoring.