User Manual

61
────────────────────────────────────────────────────
4.3 STATUS Settings (FFT)
────────────────────────────────────────────────────
NOTE
FFT analysis mode Y-axis
Time axis
averaging
Frequency
axis
averaging
Peak hold
Storage waveform
(Linear) z z -
Linear spectrum
LIN-REAL
LIN-IMAG
LIN-MAG
LOG-MAG
PHASE
z
z
z
z
z
z
z
z
z
-
-
-
z
z
-
RMS spectrum
LIN-REAL
LIN-IMAG
LIN-MAG
LOG-MAG
PHASE
z
z
z
z
z
z
z
z
z
-
-
-
z
z
-
Power spectrum
LIN-MAG
LOG-MAG
z
z
z
z
z
z
Auto correlation
function
(Linear) z z z
Histogram
(Linear) z - -
Transfer function
LIN-REAL
LIN-IMAG
LIN-MAG
LOG-MAG
PHASE
z
z
z
z
z
-
-
z
z
-
-
-
z
z
-
Cross power spectrum
LIN-REAL
LIN-IMAG
LIN-MAG
LOG-MAG
PHASE
z
z
z
z
z
z
z
z
z
-
-
-
z
z
-
Cross correlation
function
(Linear) z z z
Unit impulse response
(Linear) z z z
Coherence function
(Linear) z z z
Octave analysis
LIN-MAG
LOG-MAG
z
z
z
z
z
z
Frequency axis peak hold
The specified number of samples are captured, and the peak value is held
(stored) for each frequency.
For details on summing averaging and exponential averaging, refer to
Appendix 3.5.
When averaging is used together with the waveform evaluation function,
waveform evaluation is carried out after the specified averaging count is
completed.
After calculating the average, changing the analysis channel does not cause
recalculation.
FFT analysis mode and averaging
z: Setting is valid
- : Setting is invalid (has no effect)
Same for linear spectrum, transfer function, and cross-power spectrum with
Nyquist display.