The FFT plot displays the following
statistics:
- Input Channels
selected
- Fundamental frequency
- Fundamental power
- Noise floor
- SNR or signal-to-noise
ratio
- SFDR or spurious-free
dynamic range
- THD or total harmonic
distortion
- SINAD or signal-to-noise
and distortion
- ENOB or effective number
of bits
- Harmonics
The
FFT plot is rather meaningless for dc input voltages. However, a
low-frequency ac signal can be analyzed and the
FFT plot displayed.