镭射麦克制作指南

《镭射麦克制作指南》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、BuildthelongrangeLaserSpysystemTheLaserSpySystemisconsideredbymanytobetheHolyGrailofhightechspydevicesbecauseitcangivetheusertheabilitytolisteninonconversationsthattakeplaceinadistantbuildingwithouthavingtoinstallabugortransmitteratthelocation.TheLaserSpySystemwassai

2、dtobeinventedintheSovietUnionbyLeonTheremininthelate1940s.Usinganon-laserbasedinfraredlightsource,Theremin'ssystemcoulddetectsoundfromanearbywindowbypickingupthefaintvibrationsontheglasssurface.TheKGBlaterusedthisdevicetospyontheBritish,FrenchandUSembassiesinMoscow.I

3、tisalsointerestingtonotethatLeonTheremininventedtheworld'sfirstelectronicinstrument,awandoperatedsynthesizernamed"TheTheremin"afterhim.TheLaserSpySystemgoesbyseveralnamessuchastheLaserMicrophone,LaserListener,LaserBug,WindowBounceListenerandafewsimilarnames.TheLaserS

4、pycertainlyworkswellunderidealconditions,butithasmanystrengthsandweaknessesthatwillbediscussedinthisplan.BuildingyourownLaserSpyisbyfarthebestwaytoexperimentwiththistechnologyasyoucanadjustthedesigntosuityourneeds,ratherthanforkingoverhundredsorthousandsofdollarsfora

5、nassembledkitthatwilllikelybefarinferiortoonethatyoucanbuildyourself.ManyofthekitsIhaveseenforsaleovertheInternetnotonlyusedatedtechnology,buttheyincorrectlystatethatthesystemusesamodulatedlaserbeamtoconvertwindowvibrationsintosound,whichissimplynotthecase.Let'sputth

6、emysteriestorestonceandforallandbuildaworkingLaserSpySystemfromthegroundupandexplorethefunctionalityofeachsubsystemthatmakesaworkingunit.WewillbestartingwithanultrabasicproofofconcepttestsystemthatwillshowyouhowtheLaserSpyconvertsvibrationintosoundandhowcarefulalignm

7、entofboththelaserandreceiverarerequiredforoptimalperformance.Ironically,themostbasicconfigurationmayprovetobethemostuseful,andthe$20youspendinpartscouldcreateasystemthatworksaswell(orbetter)thansomeoftheonesthatareforsaleontheinternetforthousandsofdollars.Asyouwillfi

8、ndout,thekeytospyingwithalaserbeamisinthealignmentandreceptionofthebeam,notsomemagicalblackboxfulloffancyfiltersandopticalcomponent