Fourier Transform Operations > IFT

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Erase Frequency

To apply a notch filter (removes the frequency, or frequencies if compressed, at the cross hair origin), position the cross hair origin at the desired point on the spectrum and:

 

  In the Transform menu click on Erase Frequency.

 

   Choose Transform Erase Frequency (ALT, T, E).

 

The band pass filter is simply a combination of High-pass and Low-pass filters, applied to isolate a band of interest.

 

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