Digital Modulation Techniques DEFINITION: Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulation can be applied to direct current (mainly by turning it on and off), to alternating current, and to optical signals. One can think of blanket waving as a form of modulation used in smoke signal transmission (the carrier being a steady stream of smoke). Morse code, invented for telegraphy
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Watch this tutorial video, presented by Brian Zubert of the developer relations team at Research in Motion, as he covers advanced GPS. Topics included are: GPS on GSM, GPS on iDEN, GPS on CDMA, best practices, GPS in the browser and integrating with BlackBerry maps.
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