Next, please open a monitor for FIRFIL(U_1W), which executes 7days moving
average.
![](fft6.gif)
This is frequency response of 7days moving average. This filter removes
frequencies higher than 0.1Hz.
![](fft7.gif)
Please open a monitor for another FFTMON(F_1W).
![](fft8.gif)
The spectrum says the peak around 0.1428Hz has disappeared.
![](fft9.gif)
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