President Bush is ordering a review of how government and industry can better use the nation's radio airwaves.
Bush says the radio spectrum is a "vital and limited national resource" that's necessary for economic growth, scientific research and homeland security.
But the airwaves are getting more and more congested with signals from cell phones, wireless gadgets and the military.
The Commerce Department will do the year-long study, including a series of public meetings.
The cell phone and wireless industries, always in search of more airwaves space, say they welcome the study.