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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: $400 million network upgrade for the Pentagon
As I recall and definitely don't quote me on this:) but there are also grids of wires in the walls which release broadspectrum noise electronic noise for jamming small transmitters. But only in certain rooms. It also strikes me that the pentagon is not going to have many interesting conversations in there not nearly as interesting as some other locations I won't list here. Scott On Wed, 14 Aug 2002, Al Rowland wrote: > > "fold back" systems like Bose noise cancelling headsets depend on the > microphones being adjacent to each other. The further apart they are the > more difficult it becomes to "sync" the noise. A digital delay helps but > at some point of source divergence even it won't help. > > Of course these measures are designed for inadvertent release of > information. Anyone with a window shouldn't be discussing things worth > eavesdropping on anyway. But in the real world...hence the air pipes. > > Not that I would know anything about this sort of thing... ;0 > > Best regards, > _________________________ > Alan Rowland > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > Blake Fithen > Sent: Tuesday, August 13, 2002 3:13 PM > To: 'Brad Knowles'; 'gg'; 'Sean Donelan'; [email protected] > Subject: RE: $400 million network upgrade for the Pentagon > > > > > Brad Knowles: > > The Pentagon has windows. It also has an ancient system of air > > pipes aimed at all of the windows... > > <paranoia> > > Is this sensitive info? Couldn't someone (theoretically) aim a > "beam" at an unoccupied office and another at their objective > office then filter out the 'noise'? > > </paranoia> > > Sorry for the O.T. > > -- > blake > > > > > Brad Knowles, <[email protected]> > > > > "They that can give up essential liberty to obtain a little temporary > > safety deserve neither liberty nor safety." > > -Benjamin Franklin, Historical Review of Pennsylvania. > > > > GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E > > W+++(--) N+ !w--- > > O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) > > X++(+++) R+(+++) > > tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- > > r---(+++)* z(+++) > > >
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