| Property | Value |
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| rdfs:label | - Spectrum Analyzer
- Spectrum analyzer
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| rdfs:comment | - A spectrum analyzer are testing devices used in performing output measurement tests and performance verification on audio and telemetry devices. Mostly, these multifaceted devices performs primary measurement of EMC/EMI, Frequency Range, Bandwidth, Average Noise Level, Sweep Time, and Amplitude tests. Lastly, technicians can store, print data, or possibly transfer it to an automated computerized maintainence management system for archival.
- A device that displays how much energy an input waveform has at different wavelengths. The classic spectrum analyzer used a narrow bandpass filter that swept through the audio range, graphing the level of signal that passed through the filter at different frequencies. These devices were accurate but slow; they were not capable of accurately measuring a changing waveform. In the late 1970s, the first “real-time” analyzers were developed, using banks of bandpass filters tuned at specific intervals (typically one octave or 1/3 octave apart) and using an array of indicator lights to display the results in bar-graph style. Most current spectral analyzers use Fast Fourier Transform to perform the analysis.
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| dcterms:subject | |
| abstract | - A spectrum analyzer are testing devices used in performing output measurement tests and performance verification on audio and telemetry devices. Mostly, these multifaceted devices performs primary measurement of EMC/EMI, Frequency Range, Bandwidth, Average Noise Level, Sweep Time, and Amplitude tests. Lastly, technicians can store, print data, or possibly transfer it to an automated computerized maintainence management system for archival.
- A device that displays how much energy an input waveform has at different wavelengths. The classic spectrum analyzer used a narrow bandpass filter that swept through the audio range, graphing the level of signal that passed through the filter at different frequencies. These devices were accurate but slow; they were not capable of accurately measuring a changing waveform. In the late 1970s, the first “real-time” analyzers were developed, using banks of bandpass filters tuned at specific intervals (typically one octave or 1/3 octave apart) and using an array of indicator lights to display the results in bar-graph style. Most current spectral analyzers use Fast Fourier Transform to perform the analysis.
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