The ANG-2200 is designed to create a
perimeter of noise around a target area that defeats wired microphones inside
walls, contact microphones, audio transmitters located in AC outlets, and
laser/microwave reflections from windows. Most sound masking systems inject
noise into an otherwise benign environment. In this environment, the occupants
must raise their voices above the noise level to communicate, which invariably,
eliminates the benefit of noise masking. The PNG-200 masking system injects
noise into the environment perimeter and not directly into the environment.
This approach allows normal conversation while defeating eavesdropping devices
that rely on acoustic leakage. Features The ANG-2200 offers two channels
each with a truly random noise source. Both channels have a separate high and
low frequency control in order to compensate for loses found in the
environment's material composition.ANG-2200 Features: 2 separate
channels, Truly random noise sources, High Frequency and Low Frequency
Controls, Overload Protection. Weight: 1.2 lb. (.5 Kg) Output Max: 10 V p-p @ 6
ohms Min. Load: 2 ohms Frequency: 125 Hz 4 kHz Power: 12Vdc, 1A Transducer used
to inject acoustic noise into walls, ceilings, windows, plumbing, and air
ducts. Omnidirectional Speaker used to project acoustic noise into drop ceiling
air spaces, closets, crawl spaces, and air ducts. Transducer Window Mount
provides a safe method of attaching the TRN-2000 to a glass surface.