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Richard A. Quinnell, Technical Editor -- Test & Measurement World, 3/1/2005 2:00:00 AM
Many years ago, I attended an Intel-sponsored conference called "Communicating the Future." One speaker, Nicholas Negroponte, the director of MIT's Media Lab, noted that we had our communications backward. Our entertainment was sent by radio to our homes, where we were stationary. Our communications were by land line, even though business is often conducted on the move. He said that the situation should be reversed, with entertainment coming over land lines and communications over the airwaves.
He turned out to be only half right. Virtually everything is moving to wireless, radio communications. As we seek to squeeze more information into limited bandwidths, we evolve ever more complex coding and modulation schemes. Ultra wideband technology, frequency hopping, low power limited range, and a host of other band-sharing techniques have arisen in order to make maximum use of the available radio spectrum.
This is forcing test engineers to vastly expand their horizons. You must know your way around RF, and you also have to know digital protocols, encryption, and coding schemes. You must check the performance specifications of a device and then also ensure the simultaneous operation of every element in a network.
In this time of change, Test & Measurement World is here to help. In our magazine and test reports, we want to cover all the technologies that you will need to manage the move to wireless. Let us know how we're doing and what else you may need.
Contact Richard A. Quinnell at richquinnell@att.net .
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