Radio Design Labs ST-NG1 White and Pink Noise Generator, Mic and/or Line Level Noise Signals, Masking Noise Sources, Random Noise Source, 20 Hz to 20 kHz Noise Band, 24VDC at 30mA, PSU Not Included The ST-NG1 is the ideal choice where random white or pink noise is needed. It is suitable either as a reference noise source for audio measurements or as a masking noise source in engineered sound applications. Amplitude limiting circuitry in the ST-NG1 controls extreme peak excursions while preserving random variations of at least 20 dB. The noise generating circuitry in the ST-NG1 is truly random analog noise occupying the full bandwidth from 20 Hz to 20 kHz. This makes the ST-NG1 ideal in masking environments where secure, random noise is required. Unlike the typical digitally generated pseudo-random noise generators which can be decoded and removed by effective intelligence equipment, the ST-NG1 produces no repetitive frequency or amplitude pattern Key Features: - Random Noise Source - Masking Noise Sources - Pink Noise - White Noise - Mic and/or Line Level Noise Signals - Power Supply NOT included Specifications: - Outputs (each source): +4 dBu balanced line-level, -45 dBu balanced mic-level - Output Level: OFF to +8 dBu (line-level output adjustable), Off to -40 dBu (mic-level output) - Spectral Distribution: White and Pink - Noise Band: 20 Hz to 20 kHz - Power Requirement: Ground-referenced 24 Vdc @ 30 mA - Ambient Operating Environment: 0 C to 55 C - Overall Dimensions (HxWxD): 1.55 x 3 x 0.65 inches - Weight: 0.15 pounds