CF-5200 Frequently Asked Questions

Please refer to sections 2 and 10 and the chapter on the calibration of the sound level meter.

The overall is the sum of the products of the power spectrum (Y-axis values) of each frequency analyzed by FFT. It is averaged over the time axis.
Since a low-pass filter (anti-aliasing filter) is applied, components above the frequency range are cut off.

Chapter of the relevant instruction manual

3.5 Anti-aliasing filter
3.6 Setting the length of analysis data and resolution