And next, please open a monitor for FIRFIL(U_3M), which executes 90days moving average.
![](fft14.gif)
This is frequency response of 90days moving average. This filter removes
frequencies higher than 0.005Hz.
![](fft15.gif)
Please open a monitor for another FFTMON(F_3M).
![](fft16.gif)
The spectrum says the peak around 0.0111Hz has disappeared.
![](fft17.gif)
|