From: Alex Young <alex@...>
Date: 2007-09-04T00:41:27+09:00
Subject: Re: Seeing the source

Phlip wrote:
> Arlen Christian Mart Cuss wrote:
> 
>> I have no idea about masers? :) But I still am a kid, so...
> 
> The data bus on your 'puter generally works in cleartext. Its clock 
> turns it into a tiny little oscillating antenna, with a faint signature. 
> A maser is a focused radar that can read this signature. 
Erm...  no.  A maser is a low-frequency laser; see 
http://en.wikipedia.org/wiki/Maser.  You're thinking of TEMPEST.  Again, 
refer to the http://en.wikipedia.org/wiki/TEMPEST for details.  You 
don't need much focussing to do it - certainly not radar-level synthetic 
aperture, although I'm sure you'd want to do it that way if bulk data 
capture (or particularly long-range operation) was the goal...

-- 
Alex