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by nellwolfe on February 18th, 2004

nellwolfe

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Are there any GPDs (global positioning devices) that are small enough to be inserted undetectably into say, a wristwatch? Or a tooth filling?

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Answers. 2 helpful answers below.

  • by Anonymous on July 4th, 2006

    Anonymous

    That seems to be the basic idea behind this product:

    http://www.forgetmenotpanties.com/

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  • by idontthinkso on December 8th, 2004

    idontthinkso

    GPS receivers are getting smaller and smaller. Casio makes a wristwatch with GPS on-board, but I wouldn't call it undetectable. It is a rather large watch. Some cell phones are now arriving on the market with receivers in them. The electronics that are sold to consumers aren't nearly small enough to go into a tooth filling. And even if they were, you still have to have an antenna that is about the size of a postage stamp positioned somewhere with a clear view of the sky for it to pick up any GPS signals.

    Of course, GPS isn't the only way to track someone. A simple radio transmitter could be made that small, and could be used to track a person, but the range would be very limited. A few hundred feet at most I would guess from a tooth sized transmitter. Maybe a mile or two from a wristwatch sized device. Nowhere near global.

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