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Comment Re:There's a reason books can't be updated (Score 2) 249

Sure, if you're towing an antenna capable of sending a buttload of power with a wavelength measured between 10 and 100 kilometers...

Those high frequency emissions that any consumer digital device would emit (even when being tortured with a car battery) aren't going to make it very far with any appreciable strength.

You'd be better off trying to detect the sub by looking for magnetic flux disturbances (eg large conductive object moving within the earth's magnetic field) - they mount them to helicopters.

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