The Department of Defense, specifically the Department of the Air Force, is seeking sources for a survey and analysis of radio frequency interference affecting the D-21 Fire Alarm Receiving Systems at Ellsworth Air Force Base (AFB) in South Dakota. The objective is to investigate and resolve RF interference issues, which are critical for the functionality of the fire alarm communication system, and to provide a comprehensive report detailing findings, identified interference sources, and recommended corrective actions within 45 calendar days of contract award. Interested parties are invited to submit a capabilities package by 1:00 PM MST on January 8, 2026, to SrA Noah Wilmore at noah.wilmore@us.af.mil, as this sources sought notice is intended for market analysis and does not constitute a procurement commitment. No award will be made from this notice, and responses are strictly voluntary.