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From: douglas@reed.UUCP (P Douglas Reeder)
Newsgroups: sci.electronics,sci.physics
Subject: Re: Laser eavesdropping
Message-ID: <6073@reed.UUCP>
Date: Tue, 21-Apr-87 21:34:17 EST
Article-I.D.: reed.6073
Posted: Tue Apr 21 21:34:17 1987
Date-Received: Thu, 23-Apr-87 05:14:34 EST
References: <503@sw1e.UUCP> <704@brl-sem.ARPA> <16143@sun.uucp> <2632@phri.UUCP> <3275@burdvax.PRC.Unisys.COM>
Reply-To: douglas@reed.UUCP (P Douglas Reeder)
Organization: Reed College, Portland, OR
Lines: 8
Keywords: modulation , listening , florescent
Xref: mnetor sci.electronics:574 sci.physics:1224


You can listen to florescent lights with a simple photocell.  Photodiodes
are great for light beam transmitters, especially the new superbright diodes.
I've used these myself.  I have heard that the new soviet embassy in
D.C. is on a hill in a great place for snooping on government windows. Anyone
know if laser eavesdropping is really practical from there?
-- 
                 -Doug Reeder,  Reed College