9-21
IM 701450-01E
9
Waveform Computation
Setting the Following Items Used in the User-Defined Equation
• FFT
Set the number of computed points and the time window when computing LS- to CH-
in the table of operators given on pages 9-24 and 9-25.
• Digital Filter
Set the filter type, filter frequency bandwidth, and cutoff frequency when performing
computation of the FILT1 or FILT2 operators.
• Constant
Eight constants, K1 to K8, can be defined. You can use constants in the user-defined
equation.
• Threshold Level
Set the threshold level for binary computation when computing BIN and FV to PWXX
in the table of operators given on page 9-24.
Entering the Page 2 Menu
11. Press the Next (1/2) soft key. The page 2 menu appears.
Setting the Number of Points for the FFT and the Time Window
12. Press the FFT soft key. The FFT Setup dialog box opens.
13. Use jog shuttle & SELECT to set the number of computed points and the time
window.
14. Press ESC. The FFT Setup dialog box closes.
Select the number of
computed points.
Select the time window.
Setting the Filter Operator, Filter Type, Filter Frequency Bandwidth, and Cutoff
Frequency of the Digital Filter
15. Press the Filter soft key. The Filter dialog box opens.
16. Use the jog shuttle and SELECT to set the filter operator, filter type, filter
frequency bandwidth, and cutoff frequency.
17. Press ESC. The Filter dialog box closes.
Select the operator corresponding to the filter you wish to set.
Set the filter type.
Select the filter frequency bandwidth.
Set the cutoff frequency.
9.9 Performing User-Defined Computation (Optional)
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