Anarchist Cookbook William Powell by William Powell

Author:William Powell
Format: epub
Tags: Book of mass destruction

70 / THE ANARCHIST COOKBOOK to determine if the wire is tapped, and, if so, where it is located. Unfortunately this device (called “the Private Sentry”) costs $250. Electronic jamming Most of the devices written about so far in this chapter are legal, with regulations placed on their application, but the very possession of certain jamming devices is illegal. These jamming devices basically destroy the effectiveness of a bug rather than locate it. The reason the Federal Communications Commission has put strict regulations on these is the effect they have on other means of communications, such as completely destroying AM radio reception, rendering TV sets useless, making communications on police band radios impossible, and even to some degree interfering with aircraft communications. To be truly effective as anti-bugging devices they must cover the whole spectrum of radio frequencies, which in turn will cause interference to other outside receivers and transmitters. For this reason control is of the essence. When determining what exactly you wish to jam, you must also determine the frequency to be used, so as not to interfere with other signals. If you decide to use a jamming device for an illegal purpose, you must at all costs maintain mobility. (Jamming from the back of a moving truck has been proven effective.) Mobility is necessary, because the FCC also employs detecting and locating devices for use against underground radio stations and unregulated jamming devices. There are basically two types of jamming devices, the first of which is not manufactured commercially and would have to be built by the individual. This type is called “spark-gap device,” and is more powerful than the other, “covering a much greater distance. The second type is referred to as “the white noise device,” and is manufactured by Continental Telephone, Dectron Industries, Inc., and Telsec, with a price range from about $150 to $350, depending on strength. Electronic scramblers Electronic scramblers are devices that simply act as antibug mechanisms by transforming normal speech patterns into unintelligible sounds. The most primitive method, outdated today, is recording a message on a tape recorder, and then transmitting it, either by playing it backward or at a different speed. Although this method may momentarily frustrate the bugger, if he has half a brain, it won’t take him long to decode your message. The basic principle of scramblers, or any coding device, is to render the message useless to anyone except the desired recipient in control of the decoding device. There are several types of electronic scramblers, all effective but all sharing the same disadvantage—price. The most inexpensive one I found in any catalogue ran about $500, but then anyone with a slight knowledge of burglary will not be put off by this obstacle. This most popular type is manufactured by Dectron, and is used as an extension to the telephone. The speech is garbled before it enters the mouthpiece of the phone, and decoded after it has left the receiver. A pair of these run just over $500,

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