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Telecom
Software-Defined Radio

Any one of today’s radio-based devices, such as cell phones, GPS receivers, and wireless modems, is likely hardwired to use a single communication protocol and frequency–one reason that many cell phones don’t work when you travel abroad. Imagine instead devices that could switch easily between different protocols, frequencies, or even functions. That’s the goal of software-defined radio technology, which allows the radio chip in a wireless device to change its reception and output frequency and protocol via a change in software. Military customers have been early adopters. Market researcher Venture Development predicts that further adoption by militaries, followed by the cellular and public-safety industries, will drive market revenues in North America and Europe to more than $5 billion in 2007.

 

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