The Federal Communications Commission (FCC) has approved limited use of a new technology that reportedly provides a faster and more secure way to send wireless transmissions.

The technology, known as ultrawideband (UWB), offers a potential solution to the squeeze on the nation's airwaves created by the explosion of mobile phone, pager, and other wireless device usage.

That's because UWB devices operate over a wide swath of the airwaves, within frequencies already allocated to other uses, by using millions of pulses each second that emit so little energy they


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