shenzhen baichuan electronics
Model-8121C uses a logic circuit to generate “Pseudo-Random Noise”, it is the newest and the most advanced design to generate audio white noise. It has a much flatter frequency response than using a diode. Model-8121C has (1) a White noise source. (2)Weighting filters. (3)Built-in power amplifier.(4)” TRUE RMS ” voltage meter circuit. It can generate five different kinds of noise spectrum, including White Noise, Pink Noise, and three kinds of “Weighted Noise”, that conform to the following nation’s standards:(1) JIS C5531, IEEE 219, CNS 4785 (2) EIA 426B(3) DIN 45573
| Noise Type :
1. White Noise: -3dB Bandwidth: 20Hz～100kHz Roll-off: -24dB / Oct. Flatness: ±1dB 2. Pink Noise: -3dB Bandwidth: 20Hz～20 kHz Roll-off: -24dB / Oct. Crest factor: 4 ( IEEE 219 ) 3. Weighted Noise Ⅰ: Complies IEEE 219, CNS 4785, JIS C5531. 4. Weighted Noise Ⅱ: Complies EIA 426B, 5. Weighted Noise Ⅲ : Complies DIN 45573.
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Voltmeter :
True rms response with Hi / Lo two ranges:
Accuracy: ＜ ± ( 1% rdg. ＋ 1% F.S. ) Amplifier : 1. 100W output is defined at an unclipped maximum output of sine wave. 2.Frequency response : 20 Hz ～ 20 kHz ±0.2dB 20 kHz ～ 100kHz ±1dB 3. Output: With permanent short circuit protection. Load Impedance: ≧3.2Ω |