Use it to fix this problem.
Band WidthLimiter is an advanced utility for Spectrum Analyzer and Audio Spectrum Analyzer.
Band Width Limiter is designed to assist you with trouble-free monitoring under many unfavorable conditions, such as: signal to noise (SNR), fading and sounds with or without a tonal quality.
The spectrum analyser does not satisfy this task.
Another way of approaching this problem is to increase the resolution of the spectrum analyzer.
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