The Stealth Sound Barrier is a unique system for providing protection for human’s speech. Not all listening devices can be detected by existing methods. Remotely controlled radio microphones, wired microphones, passive resonators, miniature voice recorders – practically all these devices cannot be detected by conventional methods. Even a modern cellular phone may contain a digital voice recorder; this means that any phone lying on the desktop could be used by an adversary to record a conversation or transmitting any acoustic information.

Bearing the above points in mind, it is extremely important to have a reliable device protecting private conversations not depending on their level of importance. The concept of The Stealth Sound Barrier is based on generating audio interference produced simultaneously with a human’s speech. The volume of this interference is higher than of a person’s voice; therefore neither a listening device nor a recorder is able to pick it up the actual human speech.

The generated audio interference cannot be cleared by any noise-clearance methods. At the same time the produced interference does not create any inconvenience to the participants of the negotiation wearing to the special headsets. The Stealth Sound Barrier headset allows users to hear each other with crystal quality.

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The Stealth Navigator Pro is the most advanced TSCM RF Analyzer for detecting and eliminating illegal Wireless Cameras and eavesdropping transmitters.

It can detect not only analog RF A/V signals but also digital signals such as CDMA, GSM, 3G, Wi-Fi and Bluetooth signals use the advanced bugs.

Main Features

·         Detecting RF Audio Signal

-       Detects and demodulates Wide-Band RF signal and outputs it as audio signal like a FM radio.

·         Detecting RF Camera Signal

-       Detects and demodulates Wide-Band RF video signals and displays on LCD.

·         Detecting 2G & 3G Cellular Phone/ Wi-Fi/ Bluetooth Signal

-       Detects WCDMA (European 3G) up to 50 feet

-       CDMA (American 3G), GSM, iDEN, PHS and AMPS up to 70 feet.

·         Doppler and GPS Direction Finder

-       Displays the direction of RF transmitter on Multi-Display (Numeric and 36 LED Pelorus).

-       Connect a external PC (laptop) via RS-232 port and display the location and draw plots on Google Earth screen to search the RF transmitter during by moving its location.

·         Easy and Convenient Detecting Function

-    The customized probe helps to search and remove the RF bugs easily.

·         Centralized Control

-       Connect a PC to have additional control the receiver, scanner, GPS map and Direction Finder.

-       It can be located in a meeting room or temporary event location and monitored at remote location via Network/Internet.

·         Custom build : More functions can be added

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The Stealth SM2020 + TRN600S

Portable Audio Jammer and Speech Protection System

The Stealth SM2020 is the most advanced portable audio jammer andspeech protection system which protects you against listening and recording devices. The Stealth SM2020 creates sound barrier interference which masks your speech and any sound to be extremely difficult or impossible to extract the original content from the noise.

When it is used in the correct manner, The Stealth SM2020 will protect you from;
• Voice recorders(tape and digital)
• Microphones, wireless microphones
• Stethoscopes, laser listening device
• GSM/Buletooth/Wi-Fi transmitters, etc.

Main Functions
1. Sound Masking (Audio Jamming)
The 2 channel chaotic noise ( Distortion + Reverberation) in a random sequence secures your privacy and information from recent hi-tech speech extraction software.
• Main Speaker: 500 mW
This built-in speaker creates sound barrier interference against listening and recording nearby its location.
• Sub-Transducer: 700 mW x 2
This 2 special transducers (TRN600S) can be installed on window, wall, partition, ceiling and hard floor and create chaotic noise with random vibration depending on the output of noise to protect your speech from eavesdropping and listening.

2. RF Detector: 70 MHz ~ 3000 MHz
The Stealth SM2020 has built-in RF detector to detect any active wireless microphone or covert camera and warns with a beep sound or LED.
• Detection distance: up to 3 M (10 feet)
• Sensitivity control capability

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The Stealth AX

Specifications

Low Band

Monitoring RF Audio Signal

- Sweeping Time: Less than 5 seconds

- Frequency Range: 25MHz ~ 1300MHz

- Receiving Mode: WFM, FM, AM

- Option Port: CDMA, WCDMA, GSM, 3G, Wi-Fi,

                          Bluetooth, Jamming

- Remote Function: Remote setting & Monitoring

- On-site confirmation - Listening the demodulated sound

Preventing Laser Eavesdropping

- Noise Generator - 2 Ch Random White Noise

- Transducer line breaking alarm & transmission

The Stealth VX

High Band

Monitoring RF Audio/Video Signal

- Sweeping Time: Less than 30 seconds- Receiving Mode: WFM, FM, AM, NTSC, PAL-SEC

- Remote Function: Remote setting & Monitoring

- On-site confirmation - Watching the demodulated images

Transmission Data

- ID, Frequency, Date/Time

- Sound, Video signal (H.264

* Option: The Stealth CDMA/GSM Catcher

    - Professional 2G/3G Mobile Phone Detector with 24/7 Remote Monitoring Capabilities

     - Detecting Frequency Band: 3G 2100, CDMA800, GSM 850-1800-1900, PDC 1500

                                                                AMPS 800, PHS 1900

     - Detecting Distance: Up to 20 m (65 feet)

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