In the context of radar systems, what does frequency agility enhance?

Frequency agility enhances operational stealth in radar systems. This capability allows a radar system to rapidly switch between different frequencies while operating. By doing so, it becomes more difficult for adversaries to detect, track, or jam the radar signals.

When a radar system employs frequency agility, it can avoid detection by electronic support measures (ESM) that are monitoring specific frequency bands. Since the radar's emissions are not confined to a single frequency, they become less predictable and harder for an enemy to counter, thereby improving the system's survivability and allowing it to operate more covertly.

Operational stealth is critical in various military applications where maintaining the element of surprise is essential. The ability to change frequencies helps mitigate vulnerabilities that arise from fixed frequency operations which can be more easily targeted by enemy electronic warfare systems.