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More lessons and articles on the website: http://www.master-skills.ru/ All video courses by the author: http://www.ms-files.ru/ This video lesson explains the purpose of a spectrum analyzer. A spectrum analyzer is a measuring device that shows the frequency response of a signal. This device is used as an auxiliary tool for eliminating inaudible components of the spectrum, frequency conflicts, and for precise correction of the frequency response of a signal. In this video lesson, the author will show how to use a spectrum analyzer and give some advice on its practical application.