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The AN/ALQ-211 suite of integrated radio frequency countermeasures (SIRFC) is an electronic protection system that provides advanced radar warning, situational awareness and electronic countermeasures capabilities to air crews to detect, evade and defeat air defense weapons.

On aircraft such as the CV-22 , the AN/ALQ-211 SIRFC serves as overall electronic warfare (EW) manager. It fuses on- and off-board sensor threat data, providing the pilot with a real-time picture of the...

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