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RTSA Suite PRO Release v2.1

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Spectrum Multi Notch Filter

The Spectrum Multi Notch Filter block allows you to remove or to reduce single or multiple signals from the spectrum:

Spectrum Multi Notch Filter

Left hand side Input:

  • Spectra

Right hand side Output:

  • Spectra (filtered)

 

This block allows a lot of features to remove any unwanted signal from the spectrum:

  • Remove a Single signal
  • Remove Multiple signals
  • Remove Harmonics
  • Remove Intermodulations

 

The settings are quite simple. Select the signal type to remove or to reduce in power (Single, Multiple, Harmonics, Intermodulation) and set the needed parameters:

  • Frequency (the frequency of the signal to remove or the base frequency of the Harmonics/Intermodulation)
  • Power (In dB to be removed from the signal peak)
  • Harmonic Frequency (The frequency step between the Intermodulation's)
  • Notch Frequency (the width/span of the signal to be removed)

 

Notch Filter Setup

 

Attached screenshot shows a 40dB reduction of some intermodulation products.

The Spectrum Multi Notch Filter block includes a real-time preview feature showing the original signal in yellow and the reduced/removed signal in dark blue:

Reducing Harmonics within the Spectrum by 40dB

 

The same setup but now removing all intermodulation's in total:

Removing all Hermonics from the RF Spectrum

 

Some typical missions might look like attached:

Typical Mission to removing Harmonics

 

Even cascading the Spectrum Multi Notch Filter is possible:

Even cascading the Harmonics filter is possible

 

Or how about a comparison between different setups?

Comparing Different Notch Filter Setups