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It targets miniaturized radio transmitters commonly planted in outlets, fixtures, and furniture, which capture nearby conversations and relay them to a location. The article outlines conventional radio-receiver detection methods and explains how this broad-band unit uses only three controls plus verification circuitry to quickly identify and locate intrusions. Copyright details are included.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/instrument-locates-electronic-eavesdroppers-issue-2-1973/440378/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/instrument-locates-electronic-eavesdroppers-issue-2-1973/440378.png","ImageObject",300,407,{"name":92,"@type":93},"Alexandar","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-17","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the “De-Bug” Model 37 intended to do?","Question",{"text":112,"@type":113},"It is designed to detect and locate electronic eavesdroppers, commonly called “bugs,” when someone suspects their secrets are being spied on.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How do common bugs work according to the article?",{"text":117,"@type":113},"Typical bugs use miniaturized radio transmitters that can be “planted” in many household locations. Their microphones pick up nearby conversations and transmit them to a nearby location.",{"name":119,"@type":110,"acceptedAnswer":120},"What makes 0-Lite’s detection approach simpler than conventional methods?",{"text":121,"@type":113},"Instead of scanning many frequencies with a sensitive radio receiver and then applying direction-finding, the unit is broad-band tuned and detects a bug immediately. A verification circuit helps confirm the transmitter is not a faulty device or nearby radio station and supports faster location.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},440378,1791030462,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},962090768658,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","August 1973Volume 92,Number 2  \n# INSTRUMENT LOCATES ELECTRONIC EAVESDROPPERS\n\nAn electronic device developed by 0-Lite Co.,Greenwich,Conn.,is designed to detect and locate eavedroppers or \"bugs.\"I dentified as \"De-Bug\"Model 37,the device is intendedfor use by individuals who have reason to suspect thattheir business or personal secrets are being spied upon.  \nThe most common type of \"bug\"in use today is the miniaturizedradio transmitter.Such devices are easily\"planted\"inelectrical outlets,lighting fixtures,and al1 type offurniture.Then their sensitive microphones pick up al1conversations in the vicinity,and these are transmittedto the eavesdropper at a nearby safe location.Althoughthese devices are illega1,they are very easy to obtainand practically impossible to detect by distant governmentmonitoring stations.No practical protection can be offeredby the law.  \nConventional bug detection methods employed by enforcementand detective agencies involve the use of an instrumentthat is essentially a very sensitive radio receiver.Thetechnique is to tune the receiver through al1 frequenciesused by bugs until a nearby signal is heard,and then touse directiona1 location techniques to find it.  \n0-Lite's unit eliminates these involved and time-consumingcomplexities.Having only three controls,it is as simpleto operate as a transistor radio.It is broad-band tunedso that it listens in simultaneously to the entirespread of bug frequencies.The presence of a bug isdetected immediately.In addition,a verification circuitproves that the detected transmitter is not a faultyelectrical device or a nearby radio station,and alsohelps locate the intrusion device quickly.  \nCopyright 1973 by Industrial Research Inc.,222 S.RiversidePlaza,Chicago,I11.60606.Reproduction prohibited withoutpermission.  \n# LASER BEAM SCANNER TAKES HIGH-RESOLUTION PICTURES\n\nEmploying a newly developed,simple,highly efficientacousto-optic deflector,RCA scientists have built a laserbeam scanner that operates at TV rates,but projects apicture with three to four times the detail of conventionalTV.  \nThe laser scanner—constructed as part of on-going electro-optic research at RCA Laboratories,Princeton,N.J.—canbe used for taking pictures as wel1 as projecting them,according to Dr.George D.Cody,director of the RCAPhysical Electronics Laboratory.  \nThus,it could be the forerunner of an advanced,highresolution facsimile system that,in effect,photographsat the sending terminal the picture it reproduces ct thereceiving terminal.Conventional facsimile systems requirea photograph,rather than the object itself,in transmittingpicture copies to receiving terminals,he explained.  \nThe RCA system's pickup tube \"photographs\"spot-by-spotand line-by-line,the reflection of the laser beam as itsweeps over a three-dimensional object.The signal fromthe pickup tube is electronically processed and thensent to the receiving terminal for conventional facsimilereproduction.  \nLaser scanners have many other potential applications.These include,Cody states,scanned optical radar,computerprint-out,and optical memories,and image storage.  \nThe scanner has two deflectors—vertical and horizontal.Since TV vertica1 deflection is relatively slow,aconventional oscillating galvanometer driven mirror isemployed to direct the beam vertically.The fast movinghorizontal deflector,however,is an anisotropic Braggdevice,constructed out of paratellurite(Te⁰2).It iscapable of scanning up to 15,750 lines/sec.  \nIn developing these high efficiency deflectors,the RCAscientists found it necessary to devise a cold press bondingtechnique for attaching RF transducers to the Te⁰2.crystals.They also developed a capability for producing high puritycrystals at RCA labs.  \nIn addition to its high efficiency,the paratelluritedeflector has the advantage of simple fabrication,as itdoes not require the beam-steering mechanism of comparabledeflectors.Furthermore,1,000 TV line limiting resolutioncan be achieved with a deflector having a usefu1 ","cbCaijK4MOn3i1Ct","https://ap.wps.com/l/cbCaijK4MOn3i1Ct","pdf",2838083,"English","# INSTRUMENT LOCATES ELECTRONIC EAVESDROPPERS\n# LASER BEAM SCANNER TAKES HIGH-RESOLUTION PICTURES\n# ADVANCED METHOD FOR PROCESSING LINEAR FM SIGNALS","[{\"question\":\"What is the “De-Bug” Model 37 intended to do?\",\"answer\":\"It is designed to detect and locate electronic eavesdroppers, commonly called “bugs,” when someone suspects their secrets are being spied on.\"},{\"question\":\"How do common bugs work according to the article?\",\"answer\":\"Typical bugs use miniaturized radio transmitters that can be “planted” in many household locations. Their microphones pick up nearby conversations and transmit them to a nearby location.\"},{\"question\":\"What makes 0-Lite’s detection approach simpler than conventional methods?\",\"answer\":\"Instead of scanning many frequencies with a sensitive radio receiver and then applying direction-finding, the unit is broad-band tuned and detects a bug immediately. A verification circuit helps confirm the transmitter is not a faulty device or nearby radio station and supports faster location.\"}]","Instrument Locates Electronic Eavesdroppers - Issue 2 - 1973 | PDF",1790692014,23]