Keysight Technologies FieldFox B Series User Manual page 614

AM/FM Metrics (SA Only and Option 355)
SINAD and THD Calculations
SINAD and THD Calculations
— FieldFox converts the audio waveform to the audio frequency spectrum
— The FFT waveform is used to calculate SINAD and THD distortion metrics
— The fundamental signal, harmonics, and noise from 0 Hz to 24 kHz are
— For more on calculations, refer to
— See also,
Figure 26-4 Audio Waveform with FFT Calculations
614
using an FFT (i.e., The FFT result is not displayed). Refer to
page 614.
applied to the formulas. Refer to
page 607.
https://www.keysight.com/us/en/assets/7018-04493/application-notes/
5991-4913.pdf.
Figure 26-5 on page 615.
"Overview of Measurement Types" on
Keysight N9938-90006 User's Guide
Figure 26-4 on