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13 December 2011

Exotic Modulation Surveillance Devices

Subject: [TSCM-L] {5896} Exotic Modulation Surveillance Devices
From: High Frequency <highfrequency_john[at]>
Date: Tue, 13 Dec 2011 06:24:53 -0500
To: "tscm-l2006[at]" <tscm-l2006[at]>

For the past several months I have been diligently, and with Law Enforcement approval, researching several 'exotic modulation' audio surveillance devices that have been seen in Europe and are now in North America.

The devices included high quality Ultrasonic, inductive and light modulated listening devices. Some of the results were stunning, and the standard sweep tools most of us buy in North America simply can't detect them.

For example, there is one modified LED bulb that will send audio over 300 meters, a nasty ultrasonic audio implant that sends room audio via fortuitous audio pathways, and a kit that allows the attacker to modify any color LED light found in a common appliance and turn it into an audio transmitter. 

The last and most important device for those of us who work with high threat levels is the inductive device. It literally goes through anything and it is very scary.

Qualified sweepers can view these new and significant devices at in the government and LEO restricted area.