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Re: USB wireless keyboard in stretch



On 22/08/17 04:11, Darac Marjal wrote:
> Don't forget your TEMPEST-approved faraday cage (I mean, what's the wire
> between the keyboard and the computer if not a nice aerial?)

No. USB uses twisted pair, which is designed specifically to be a bad
antenna. Also, the relatively low frequency of USB 1.0 and 2.0 does not
lend itself well to RF emission by small radiators.

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