Article 40468 of alt.security: All TSCM people have heard about AID devices, but few know the actual freq they use, or what they look like. The devices are VERY popular with the law enforcement crowd, private investigators and corporate security types. The equipment is VERY overpriced, and the fairly easy to detect. AID bills itself as "The World's Largest Manufacturer of Electronic Intelligence Equipment and Specialized Protective Systems" AID was founded in 1970, and was sold in 92/93 to Westinghouse (Westinghouse is currently selling TONS of equipment to the DEA and State dept) _____________________________________________________________________________ AID - Westinghouse/Audio Intelligence Devices, Inc. Bug Freqs 150 mhz - 174 mhz Standard/Primary Band (Most Popular Band) 135 mhz - 150 mhz Special Order/Secondary Band 216 mhz - 220 mhz Special Order 400 mhz - 470 mhz UHF Repeaters 36 mhz - 39 mhz Very Low Power WFM (.5mw - 50mw) 80 khz - 200 khz "Line Carrier" Miscrophone Systems 1700mhz - 1900mhz 25-250mw Video and audio bugs 2450mhz - 2484mhz 25-250mw Video and audio bugs _____________________________________________________________________________ If the signal is "scrambled" it is nothing more than simple voice inversion, a circuit to "de-scramble" costs around $20. Note: AID devices are often re-tuned for outband channels... so be careful. The area of spectrum from 35mhz to 500mhz is the primary threat, 500mhz to 3ghz is the secondary threat, a "line carrier" threat is from 30khz to 750khz. If the person planting the bug suspects that a TSCM may be conducted then AID suggests a frequency between 30mhz to 50mhz, sensitivity of rcvr should be better than .18uv/-122dbm. Also, keep in mind that AID devices are frequently used for illegal buggings, so be familiar with what their realistic specs are, expect power outputs under 50mw, and expect to see the AC power circuits being used as the antennae. Faster than you can say "Silkwood a brake line" -jma =============================================================== Train, Observe, Detect, Protect, Defend, Repel =============================================================== James M. Atkinson Granite Island Group - TSCM.COM 127 Eastern Avenue #291 http://www.tscm.com/ Gloucester, MA 01931-8008 jmatk@tscm.com =============================================================== The First, The Largest, The Most Popular, and the Most Complete TSCM Counterintelligence Site on the Internet ===============================================================