199
────────────────────────────────────────────────────
9.12 8938 FFT ANALOG UNIT
────────────────────────────────────────────────────
Flashing cursor
Function
display
Meaning
:
Anti-aliasing filter is disabled.
:
Anti-aliasing filter is enabled.
NOTE
9.12 8938 FFT ANALOG UNIT
The 8938 FFT ANALOG UNIT contains an internal anti-aliasing filter
required for FFT analysis. Enable the anti-aliasing filter when doing FFT
analysis.
Procedure
Screen: CHANNEL,Waveform display
Set the antialiasing filter.
1. Display the CHANNEL or Waveform display screen.
2. Press the CH.SET key to display the channel screen to
be set.
3. Move the flashing cursor to the position shown in the
figure on the left.
4. Use the function keys to select.
・We recommend using an input unit equipped with an anti-aliasing filter that
can be enabled to minimize sampling distortions during FFT analysis.
・Refer to Appendix 3.10, "FFT Function" for more information about aliasing
distortion and anti-aliasing filters.
・If the anti-aliasing filter is on, "A" is printed at the end of the filter settings
page during list printing. Refer to Section 13.5, "Example of Printer Output".
・Refer to Section 8.3.3, "Setting the Frequency Range" for details about the
relationship between the anti-aliasing filter cutoff frequency and the
frequency range and time axis range.
To Next Page
Loading...
