HP/Agilent 8903B Audio Analyzer

The HP 8903B audio analyzer is a multifunctional instrument designed for precise audio signal measurements in the frequency range from 20 Hz to 100 kHz. It combines the functions of a low-frequency generator, distortion analyzer, frequency counter, and AC/DC voltage meters. Thanks to microprocessor control, the HP 8903B can automatically perform complex measurements such as signal-to-noise ratio analysis and distortion scanning without the need for additional equipment.

Main Features:

• Frequency Range: 20 Hz – 100 kHz
• Low Residual Distortion: Less than 0.01% (–80 dB) in the range from 20 Hz to 20 kHz
• Measurement Functions: Distortion measurement, SINAD, signal-to-noise ratio, true RMS AC voltage, DC voltage, and frequency
• Built-in Low-Frequency Generator: Output voltage range from 0.6 mV to 6 V and output impedance of 600 ohms or 50 ohms
• Analyzer Input Impedance: 100 kΩ, balanced input
• Built-in Filters: 30 kHz and 80 kHz low-pass filters, as well as additional filter options such as 400 Hz high-pass filter, CCITT, CCIR, C-MESSAGE, CCIR/ARM, and "A" weighting filters