G S Osler wrote on 2003-03-04 13:23 UTC: > The question is how feasible is it for an average electronics engineer > to install the basics needed. Slashdot Nov 99: > > "New Scientist has an interesting article about a new toy we will all > want. It's a card that plugs in one of your PCI slots and allows you to > scan the EMF spectrum and read your neighbours terminal. In about 5 > years you might be able to get one for just under �1000. (Modern Tempest > Hardware costs about �30000) " > http://slashdot.org/yro/99/11/08/093250.shtml
Slashdot is not very good in quoting, otherwise you would have noticed that your interlocutor made that quick remark when a New Scientist reporter rang him up sometimes in November 1999. But we are actually getting there, with Analog Devices now shipping an 8-bit 1.5 Gsample/s ADC for under 500 USD and companies such as Echotek starting to produce first affordable data-acquisition boards where that chip is surrounded by a couple of high-end FPGAs to do the interpolating and periodic averaging necessary to lift the compromising emanations out of the noise. Combine that with a decent analog RF preselector front-end and a set of broadband antennas, and you too could be in the Tempest business. Tedious in practice, but not unfeasible. > For myself the paranoia set in when I began to use my computer for a > �30,000+ legal claim. I probabaly wouldn't start to worry much about compromising emanations of a single device unless >> �1e6 were involved. Burglary risks might be a far more important concern (as a friend of mine learned painfully recently, when he finally realized the difference between a realdog and a robodog after burglars took his Aibo). Markus -- Markus Kuhn, Computer Lab, Univ of Cambridge, GB http://www.cl.cam.ac.uk/~mgk25/ | __oo_O..O_oo__ _______________________________________________ Fonts mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/fonts
