ANG-2200 is an acoustic noise generator made to protect your privacy and conversations from various unwanted listening devices in walls, ceiling, windows or similar. 

Whether it's wired microphones inside walls, audio transmitters in AC outlets, contact microphones, or laser/microwave reflections from windows, the ANG-2200 effectively shields your room from eavesdropping attempts by producing a protective perimeter of sound that disrupts any possible voice leakage.

No matter if you are conducting a high-stakes business negotiations or discussing classified governmental matters, this device ensures your conversations stay within the intended perimeters.

ANG–2200 Acoustic Noise Generator works by generating true random noise. This type of noise is unpredictable and natural, making it impossible for eavesdroppers to anticipate the pattern and extract your conversation. The noise is injected into the chosen area perimeter, but not the area itself, so you will still be able to talk freely within the room. 

There are a number of accessories that are used to customize the system to fit a specific environment. These include the TRN-2000 Transducer for injecting acoustic noise into various structures, the OMS-2000 Omni Directional Speaker for projecting masking noise into open air spaces, and the WMT-2000 Transducer Window Mount for secure mounting on window surfaces. The ASA-2000 Acoustic Spectrum Analysis Software and Acoustic Leakage Probe further enhance your setup, helping you understand how sound is being absorbed in your environment and enabling you to set ideal noise masking levels, without being too loud or disruptive.

The device also includes a feature called tailored voice masking. The ANG-2200 is engineered to emit noise in the frequency range that carries most of our speech - from 300Hz to 3000Hz. This makes the masking noise very efficient at protecting speech, while also ensuring a comfortable noise level in the room.

The dual-channel control allows each noise channel to be adjusted based on the material of the surface it is applied to. For example, one transducer could be set to create noise for a glass window, while another could be set for a wooden wall. This ensures that the masking noise is always effective, regardless of the room's structure.

For quick and easy setup, there's also the ANG-2000 Rapid Deployment Kit. This kit includes all the accessories needed to set up the ANG-2200 system in a medium-sized area like a conference room. The whole system is stored in a rugged carrying case for easy transport and storage.

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ANG–2200 Accessories:

• TRN-2000 Transducer: Injects acoustic noise into walls, ceilings, windows, plumbing, air ducts, and other structures vulnerable to acoustic leakage.
• OMS-2000 Omni Directional Speaker: Projects masking noise into drop ceiling air spaces, closets, crawl spaces, and other vulnerable open air spaces.
• WMT-2000 Transducer Window Mount: Used for securely mounting the TRN-2000 transducer to window surfaces.
• ASA-2000 Acoustic Spectrum Analysis Software: Allows you to understand how much sound the structures in your environment are absorbing. You can then use this information to correctly set the noise masking levels. This software comes with the Acoustic Leakage Probe.
• Acoustic Leakage Probe: Optimized for voice use with a low noise high output element and used with the ASA-2000 software to evaluate the extent of structure-bound audio leakage.

ANG–2200 Main Features:

• Protects from any eavesdropping devices within a room
• Generates true random noise, naturally generated and completely unpredictable
• Dual channel control for use on different structures (wood, window, plumbing, etc)
• Masking system generates noise for the perimeter, not directly into the area allowing normal conversation within the room
• Acoustic Spectrum Analysis Software for adjusting noise to your needs
• Flexible system configuration and customizable to the area

ANG-2000 Rapid Deployment Kit:

The Rapid Deployment Kit is designed for a quick and easy setup of the ANG-2200 system in a medium sized area (eg.conference room). All the accessories are stored in a durable carrying case for convenient transport and secure storage. 

It includes:

• 2x ANG-2200 Acoustic Noise Generator, 
• 24x TRN-2000 Transducers 
• 2x OMS-2000 Omni Directional Speakers, 
• 24x WMT-2000 Transducer Window Mount, 
• ASA-2000 Acoustic Spectrum Analysis Software, 
• Multimeter with cables, 
• Wire stripper,
• Screwdriver,
• Needle nose pliers,
• 1/4” socket bit,
• 2 Spools 500 ft (152 m) wire, and 
• Portable case with casters

ANG–2200 Specifications: 

CHANNEL
Independent random noise source
Output voltage: 12 Vp-p @ 6 Ω (2 Ω min load)
Frequency range: 125 Hz - 4 kHz
Equalizer: LF 180 Hz ± 12 dB, HF 3 kHz ± 12 dB

POWER
15 VDC @ 1 A (AC adaptor supplied for 120 or 240 VAC)

MECHANICAL
Unit dimensions: 1.6 x 5.5 x 8 in  (4.1 x 14.0 x 20.3 cm)
Unit weight:  1.3 lb. (590 g)

TRN-2000 Transducer
With wall mounting and connecting hardware
Size: 2.875 in x 1.25 in (7.3 cm x 3.2 cm)
Weight: 0.9 lbs (408 g)
Impedance: 6 Ω
Max Transducers per Channel:
3 @ full level (parallel) 
12 @ 1/2 level (six groups of two) 
27 @ 1/3 level (six groups of three)

OMS-2000 Omni Directional Speaker
Size: 5 in x 53/4 in (12.7 cm x 14.6 cm)
Weight: 2.0 lbs (907 g)
Impedance: 24 Ω
Max Speakers per Channel:
 12 @ full level

Acoustic Leakage Probe
Frequency Response: 50 Hz to 10 kHz 
(Surface Dependant)
FET Preamp Bias: 3 to 9 VDC
Sensitivity: Optimized for voice use/low 
noise high output element
Impedance: 2 kΩ

Rapid Depleyment Kit:
Weight Packed: 75 lbs (34 kg)
Exterior Dimensions:
(LxWxD) 25 in x 20 in x 12 in 
(63 cm x 50 cm x 30.2 cm

ANG–2200 Acoustic Noise Generator Feature Focus: 

True Random Noise

Unlike conventional noise generators that produce pseudo-random noise (predictable noise patterns created from a mathematical formula or pre-calculated list), the ANG-2200 produces truly random noise generator. This generator produces noise that is naturally created and completely unpredictable. The unpredictability protects against sophisticated eavesdropping techniques that may be able to decode predictable noise patterns, therefore enhancing the security of your conversations.

Tailored Voice Masking

The ANG-2200 has been designed to focus on the frequency range that carries intelligible speech (300Hz to 3000Hz). This means the noise masking is more efficient, providing an extra layer of protection for your speech, while also maintaining a comfortable noise level in the room that doesn't disrupt your normal conversations. 

Flexible Operation

The ANG-2200 uses a mix of transducers and speakers, which are strategically placed around the target area to create a complete noise blanket. Each transducer can be attached to surfaces such as walls, windows, ductwork, and plumbing, and each speaker can inject masking noise into drop ceiling air spaces, closets, crawl spaces, and similar, enabling them to adapt to a wide variety of environments and structural elements.

Dual-Channel Control

With the ANG-2200's dual-channel control, each channel can be tuned according to the material of the surface it's applied to. This means that you can have one transducer generating noise for a glass window and another one for a wooden wall at the same time, each optimized for its surface, ensuring that the noise effectively masks your conversations no matter of the room's structure and materials.

ASA-2000 Acoustic Spectrum Analysis Software 

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ANG–2200 Acoustic Noise Generator FAQs

Can the ANG-2200 be used in any type of room?
Yes, the ANG-2200 can be customized for use in various environments thanks to its flexible system configuration and dual-channel control. It comes with accessories like the TRN-2000 Transducer and OMS-2000 Omni Directional Speaker to adapt to different room structures and materials, ensuring effective noise masking in any setting. This adaptability makes it suitable for a wide range of applications, from business negotiations to classified discussions.


How does the ANG-2200 generate noise?
The ANG-2200 generates true random noise, which is naturally created and completely unpredictable. This type of noise is different from pseudo-random noise as it cannot be anticipated or decoded by eavesdroppers, making it highly effective at masking conversations. The unpredictability of the noise ensures enhanced security against sophisticated listening techniques.


How does the ANG-2200 protect against eavesdropping devices?
The ANG-2200 protects against eavesdropping devices by creating a protective perimeter of sound that masks speech. It generates true random noise that disrupts any potential voice leakage, making it impossible for listening devices to capture intelligible conversations. This ensures that sensitive discussions remain private and secure within the protected area.


How does the ASA-2000 Acoustic Spectrum Analysis Software work with the ANG-2200?
The ASA-2000 software helps users understand how sound is absorbed in their environment and adjust the noise masking levels of the ANG-2200 accordingly. It is used with the Acoustic Leakage Probe to evaluate structure-bound audio leakage, enabling precise adjustment of the noise generator for optimal performance. This software ensures that the device provides the right amount of masking noise, optimized for the specific environment without being too loud or disruptive.


How does the dual-channel control enhance the ANG-2200’s effectiveness?
The dual-channel control allows for the noise output to be adjusted based on the material of the surface it is applied to, such as glass or wood. This ensures that the masking noise is optimized for different structural elements within a room, making the noise masking always effective. By fine-tuning the noise for specific surfaces, the ANG-2200 can provide tailored protection against eavesdropping attempts.


Is the ANG-2200 suitable for government and high-stakes business use?
Yes, the ANG-2200 is suitable for government and high-stakes business use due to its effective protection against eavesdropping devices and its ability to create a secure environment for confidential discussions. Its tailored voice masking and customizable features make it an ideal choice for situations where privacy and security are paramount. The device’s adaptability and effectiveness in various settings ensure that it meets the stringent requirements of these applications.


What accessories are available for the ANG-2200?
Accessories for the ANG-2200 include the TRN-2000 Transducer, OMS-2000 Omni Directional Speaker, WMT-2000 Transducer Window Mount, ASA-2000 Acoustic Spectrum Analysis Software, and the Acoustic Leakage Probe. These accessories allow for customization of the system to fit specific environments and enhance the setup, helping to inject acoustic noise into structures and open air spaces effectively. They are essential for tailoring the system to the user’s specific needs.


What is tailored voice masking in the context of the ANG-2200?
Tailored voice masking refers to the ANG-2200’s ability to emit noise specifically in the frequency range of human speech (300Hz to 3000Hz). This feature ensures that the noise efficiently masks speech without being overly disruptive to normal conversation within the room. It provides an extra layer of protection for your speech while maintaining a comfortable noise level.


What is the ANG-2200 Acoustic Noise Generator designed for?
The ANG-2200 is designed to protect private conversations from eavesdropping devices by generating a perimeter of sound. It effectively shields against listening devices in walls, ceilings, windows, and more, by producing true random noise that disrupts potential voice leakage. This ensures that conversations within the protected area remain confidential and secure.


What is the purpose of the ANG-2000 Rapid Deployment Kit?

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Note:

For more detailed specifications, please carefully study the PDFs available for download below.

 
>>Download detailed specifications (PDF)<<