The Department of Defense, specifically the Army Research Laboratory (ARL), is seeking sources for the procurement of one free-space measurement system along with associated add-ons. The requirements include a Focused Beam Base System, measurement software for free space and waveguide applications, an automated control system for specimen handling, and upgrades for measurement capabilities, all aimed at enhancing RF sensing research. This procurement is crucial for advancing measurement technologies in RF sciences, and interested vendors, particularly small businesses in designated categories, are invited to respond to the Sources Sought Notice by March 19, 2025. For further inquiries, potential contractors can contact Stency Steephan or Zachary Dowling via the provided email addresses or phone numbers.