Crayola style... got it.
White space, in the sense of these devices, is defined as the space between current over-the-air TV signals. When the
switch-over happens in the US in Feb, 2009 to digital signal rather than the current analog signals, there will be increased white space, which was the basis of the proposal... this would allow better "last-mile connectivity" for rural areas, as well as provide another competitor in the broadband market.
Quote:
Full power analog television broadcasts, which operate between the 54 MHz and 806 MHz television frequencies (Channels 2-69), are slated to cease operating in February 2009 per a United States digital switchover mandate. At that time, full power TV stations will be required to switch to digital transmission and operate only between 54-698 MHz.
The advantage of this approval is TV signals travel a longer distance and able to penetrate walls better than 2.4/5.6 GHz signals and can carry more bandwidth than those 2 frequencies.
If a white space device is produced that will be adequate for in-car use, you would have internet access pretty much anywhere in range of a suitable broadcast tower... think of it as wi-fi on crack... however the device has to make sure that it will not impede on existing signals. By downloading a database, it will know (for example) 325 Mhz - 500 Mhz is used by local broadcasters, so it will not attempt to connect at those frequencies.