Roberts Electronics 990

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The Roberts Electronics 990 is a high-performance audio test and measurement instrument designed for use in a variety of applications, including audio equipment design and production testing, audio electronics research and development, and audio core system testing. It features advanced digital signal processing, wide dynamic range, high resolution, and accurate phase response. Some of its key features include:1. Frequency Response Analyzer (FRA): The FRA function measures the frequency response of audio signals and components over a wide range of frequencies, allowing engineers to analyze and optimize the performance of audio systems and components. The FRA function supports measurement frequencies from 20 Hz to 20 kHz with a frequency resolution of 0.1 Hz.2. Distortion Analyzer (DIA): The DIA function measures the total harmonic distortion (THD) and intermodulation distortion (IMD) of audio signals and components. It allows engineers to analyze and optimize the harmonic distortion performance of audio systems and components to meet industry standards and customer requirements.3. Delay (DLY) Analyzer: The DLY function measures the delay time and group delay of audio signals and components, providing engineers with insights into the timing characteristics of audio systems and components.4. Voltage (VOL) Analyzer: The VOL function measures the voltage and amplitude of audio signals and components, allowing engineers to set and monitor voltage levels for various applications, such as audio output levels and microphone sensitivity.5. Phase (PHA) Analyzer: The PHA function measures the phase difference between two audio signals, helping engineers to understand and optimize the phase relationships between signals in complex audio systems.In summary, the Roberts Electronics 990 is a versatile, high-performance audio test and measurement instrument that provides accurate and detailed measurement data for a wide range of audio applications. Its advanced features and precise measurement capabilities make it an essential tool for audio engineers, designers, and researchers.