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AutoBahned
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I think everything has active devices now. Way way back the Brits had big passive listening devices...
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Registered
Join Date: Jul 2005
Location: France
Posts: 4,596
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You are basicly correct. But the signal to be recieved must be amplified and converted. All this messing with electrons produces RF signals that can be detected.
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Who Dares, Wins! |
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Registered
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Anyone use those scanners that detect the repeater in the patrol car's radio? Simply knowing that a patrol car was within a mile of you would be useful on the highway.
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Banned
Join Date: Sep 2006
Location: South of Heaven
Posts: 21,159
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Quote:
Sounds like a really good idea. |
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