A method and apparatus for determining and sharing RF spectrum availability. The method includes automatically sensing and analyzing a... Show moreA method and apparatus for determining and sharing RF spectrum availability. The method includes automatically sensing and analyzing a spectrum to identify used and/or unused portions of the spectrum, and automatically communicating the used and/or unused portions of the spectrum to a spectrum owner or a spectrum user. The invention has particular use in automatically identifying and quantifying current spectrum users, automatically reporting the current spectrum users to a spectrum owner, and/or allocating unused spectrum portions to users. Sponsorship: Illinois Institute of Technology United States Patent Show less