Just when you thought you'd heard the last of the national switch to digital TV, along comes another technical term to further clutter your brain: white spaces. They are the unused airwaves between licensed TV channels — and cities want to access them for everything from transmitting data from traffic and security cameras, to providing broadband access. A test is going on now in Wilmington, N.C.
Cities Seek Access To Unused Airwaves
News & Features Catherine Welch · WHQR-FM ·