Boeing working to provide tracking abilities sans GPS signals

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titus.jon @ Apr 21st 2007 12:33PM

This is a good idea, as it allows radio towers that you find all over the place in cities to be able to help you find your position. The main flaw of GPS is that the signals cannot be found in cities, where the tall buildings block the signals. If the signals can be delivered from within the cities themselves, then you would be able to know where you are without having to use GPS.

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