Protect Private Conversations
The ANG-2200 Acoustic Noise Generator creates a perimeter of noise that defeats acoustic leakage eavesdropping devices including wired microphones inside walls, contact microphones, audio transmitters located in AC outlets, and laser/microwave reflections from windows.
Efficiency: offers two channels, each with high and low frequency control to compensate for material composition, with truly random noise sources
Usability: masking system injects noise into the environment perimeter and not directly into the environment—allowing normal conversation while defeating eavesdropping devices
Portability: optional accessories (transducer, omnidirectional speaker, window mounts) can be purchased to tailor the ANG-2200 to the environment of concern
The ANG-2200 injects tuned masking noise into perimeter structures to mask structure-bound audio. Acoustic Spectrum Analysis Software (ASA-2000) ensures the masking noise is properly adjusted to provide adequate masking without being too loud or disruptive. • True random noise source with no statistical repeatability • Independently controlled dual channels for use on different structures • “Tunable” masking noise for specific environmental requirements • Provides an eavesdropping defense against devices that may not be detected by conventional methods System configuration should be tailored to the environment.
Features
- Two separate channels
- Truly random noise sources
- High and low frequency controls
- Overload protection
Applications
- Technical Surveillance Countermeasures (TSCM)
- Counter Surveillance
- Audio Masking
- Noise Generation
- Eavesdropping Prevention
- Intelligence Protection
- Executive Protection
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) |
Accessories - Sold Individually
TRN-2000 Transducer injects acoustic noise into walls, ceilings, windows, plumbing, air ducts, and other vulnerable structures.
WMT-2000 Transducer Window Mount
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 projects masking noise into drop ceiling air spaces, closets, crawl spaces, and other vulnerable air spaces. NOTE: Speaker wire not included, common 18 gauge speaker wire is recommended.
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
ASA-2000 Acoustic Spectrum Analysis Software Allows the user to evaluate structure-bound audio leakage for analysis and proper adjustment of the ANG-2200 to provide adequate masking without being too loud and/or disruptive.
Allows the user to evaluate structure-bound audio leakage for analysis and proper adjustment of the ANG-2200 to provide adequate masking without being too loud and/or disruptive. 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
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