The Department of Defense, specifically the Air Force Research Laboratory (AFRL), is seeking proposals for the SBIR opportunity titled "RAPTURE – Radio frequency Passive Technology for Ubiquitous Research and Engineering." This initiative aims to develop advanced passive sensing systems for RF geolocation that can operate effectively across various platforms, including manned and unmanned systems, as well as space-based applications. The focus is on creating technologies that enhance situational awareness in contested environments while minimizing active transmissions, thereby supporting critical military operations. Interested parties should prepare proposals for a Direct to Phase II submission, demonstrating prior relevant work and a clear plan for integrating commercial capabilities into military applications. The solicitation is set to open on May 28, 2025, with a closing date for applications on June 25, 2025. For more information, visit the official source link at https://www.dodsbirsttr.mil/topics-app/.