Marine Sgt. Aaron Nevárez, Marine Corps Detachment Goodfellow Russian course chief, and Air Force Staff Sgt. Audra Patton, 316th Training Squadron signals intelligence instructor, use a field expedient antenna to determine a window of a signal’s location, Goodfellow Air Force Base, Texas, Oct. 19, 2022. FEAs can be made in the field with cheap and accessible materials to receive specific signals.

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Keywords: exercise, force, innovating, joint, signals, training