The Department of Defense, specifically the United States Air Force Test Center, intends to award a sole source contract to Quasonix for the provision of transmitters and receivers critical to ongoing flight test activities at Edwards Air Force Base, California. This procurement is justified under FAR 13.501(a), as Quasonix is the only vendor capable of supplying equipment that is compatible with existing systems, thereby avoiding substantial duplication of costs and delays associated with transitioning to another supplier. The Quasonix equipment serves as replacement parts for legacy systems, ensuring operational efficiency and minimizing training and maintenance costs while preventing significant disruptions to flight testing capabilities. Interested parties are encouraged to submit feedback within three days of this notice, and inquiries can be directed to Kimberly McGee at kimberly.mcgee@us.af.mil or Adam R. Confer at adam.confer.2@us.af.mil.