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"Return
Back To The Maximum Security Section Main Start Page "
And Check Out The Rest Of Our Security Data To Keep You Safe!
James M. Atkinson
jmatk@tscm.com
Granite Island Group - TSCM.COM
127 Eastern Avenue #291
Gloucester, MA 01931-8008
http://www.tscm.com/
0.902 - 0.928 ghz - Popular Commercial FH/DS Devices
1.710 - 1.755 ghz - DEA Audio/Video Bugs (over 1400 bugs purchased in 1995)
1.710 - 1.755 ghz - DOJ Audio/Video Bugs (.25 to .50 watts)
1.710 - 1.850 ghz - Treasury Video Surveillance Systems
2.400 - 2.484 ghz - Popular Commercial FH/DS Devices
4.635 - 4.660 ghz - Treasury Video Surveillance Systems
Most recently purchased government microwave surveillance gear seems to be running between 900mhz to 5ghz, with a few systems operating on the 7/8 ghz bands.
Also, keep in mind that the pros love to use ultra low power devices which use the power lines as the transmission medium/antenna (9khz to 300 mhz). Devices typically operate below 10mw, often below 1mw. The devices typically use Wide FM and use voice inversion encryption... VERY easy to demodulate.
Note: According to a recently obtained DOJ surveillance training manual:
"The typical range for the 28 ghz devices is six miles, the typical range of the 2.4 ghz is thirty miles, and the typical range for the 1.7ghz is 44 miles.""... frequency modulated applications should operate below 3 ghz to take advantage of the favorable frequency propagation characteristics of that part of the spectrum."
"...Frequency Hopping and Direct Sequence Devices spread spectrum devices should operate above 1.5 ghz, this will prevent the emissions from being detected by electronic countermeasures."
The most popular surveillance receiver used covers 9khz (for CC/VLF) up to 9ghz, so be sure to cover AT LEAST those bands.
AID
All TSCM people have heard about AID devices, but few know the actual frequency 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 over-priced, 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 Department).
AID - Westinghouse/Audio Intelligence Devices, Inc. Bug Frequencies:
135 MHz - 150 MHz Special Order/Secondary Band
150 MHz - 174 MHz Standard/Primary Band (Most Popular)
216 MHz - 220 MHz Special Order
400 MHz - 470 MHz UHF Repeaters
21 MHz - 80 MHz Very Low Power WFM (.5mw - 10mw) Special Order Only
36 MHz - 39 MHz Very Low Power WFM (.5mw - 50mw) - Very Dangerous
80 kHz - 200 kHz "Line Carrier" Microphone Systems - Very Dangerous
30 kHz - 700 kHz Spread Spectrum Current Carrier Devices
1700MHz - 1900MHz 25-250mw Video and audio bugs (Mostly DEA/DOJ stuff)
2400MHz - 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 15MHz 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 inspection may be conducted then AID suggests a frequency between 30MHz to 50MHz, sensitivity of receiver should be better than .18uv/-122dbm. The mode is usually wideband FM.
Also, keep in mind that AID devices are frequently used for illegal buggings, so be familiar with their realistic specs, expect power outputs well under 50mw, and expect to see the AC power circuits being used as the antenna.
Note: Mike Langley at NIA advises that AID/NIA/Westinghouse is totally shutting down all TSCM training, in that they have cancelled the production of all TSCM products effective 1 Jan 97.
Several devices were recently found at a DOE facility on Long Island, details are a bit sketchy, but initial information indicates that a defecting middle-eastern FIS agent provided a list of locations within several DOE facilities that were being targeted. TSCM inspection (not performed by DOE) located several devices. Facility/lab working on designs for triggering mechanisms... very interesting incident.
HDS - Household Data Services
50.000 - 750.000 kHz Carrier Current Audio System
120.000 - 400.000 kHz Carrier Current Audio System
138.000 - 174.000 MHz Wireless microphone/Body Wires (8KR Series .1 to 30 mw)
150.000 - 174.000 MHz Wireless microphone/Body Wires (ATX Series .1 to 30 mw)
174.000 - 230.000 MHz Wireless microphone/Body Wires
350.000 - 440.000 MHz Audio/Video Transmitters (360-440 popular)
470.000 - 608.000 MHz Audio/Video Transmitters
570.000 - 928.000 MHz Audio/Video Transmitters (Spread Spectrum Popular)
1,000 - 1,500 MHz Low Power Audio/Video Transmitter (10-100mw max)
1,425 - 1,450 MHz Low Power Audio/Video Transmitter (10-100mw max)
1,700 - 2,700 MHz Audio/Video Transmitters 2.4-2.5 hot (10-100mw max)
1,710 - 1,900 MHz Audio/Video Transmitters (10-100mw max) HOT
6,425 - 7,125 MHz Low Power Audio/Video Transmitter (10-100mw max)
8,100 - 8,700 MHz Audio/Video Transmitter, 8.2/8.5 popular (10-100mw max)
10,200 - 10,700 MHz Audio/Video Transmitter, 10.5 popular (10-100mw max)
17,700 - 19,700 MHz Low Power Audio/Video Transmitter (10-100mw max)
20,000 - 24,600 MHz Low Power Audio/Video Transmitter (10-100mw max)
Sony - Wireless Microphones and Body Wires
470.000 - 489.000 MHz 2.5mw - 20mw, WFM (110kHz), Ultra low power
770.000 - 782.000 MHz 2.5mw - 10mw, Ultra low power - Chnl 64
782.000 - 794.000 MHz 2.5mw - 10mw, Ultra low power - Chnl 66
794.000 - 806.000 MHz 2.5mw - 10mw, Ultra low power - Chnl 68
770.000 - 810.000 MHz 2.5mw - 20mw, WFM (110kHz), Ultra low power
902.000 - 928.000 MHz 2.5mw - 20mw, WFM (110kHz), Ultra low power
947.000 - 954.000 MHz 2.5mw - 20mw, WFM (110kHz), Ultra low power
60.000 - 970.000 MHz 2.5mw - 10mw, WFM (300kHz) Audio Transmitter
Note: These little low power devices have an adjustable frequency deviation which can be adjusted to as high as +/- 225khz... System also uses a matched receiver. Entire system transmitter and receiver sell for under $2500.
Imagine a 3mw transmitter operating at 782mhz (snuggled up to the audio of the local TV transmitter) using a 100khz cue channel subcarrier. Life expectancy at least 350 hours (using lithium cells). Reasonable range at least 1500 feet indoors.
From http://www.websitetoolbox.com/tool/post/whosarat/vpost?id=320075