The top level receives the multicast streams with the multicast block of Franco K4VZ.

After converting a stream from complex to float, it is send to the WebSDR using a two channel audio sink.

The skip head block is used to keep all buffers empty for a few seconds at startup.

The noise blanker (hierarchical block NB_core_3) is for now inserted on 80m and 40m only.

Overlapping FFT and IFFT is done in the FFT_overlap_NB_3 and IFFT_overlap_NB_3 hierarchical blocks.

For a description of the functionality see page:

https://websdr-maasbree.jouwweb.nl/technical-information-hf-bands/noise-blanker

<via_MC_all.png>

<NB_core_3.png>

<FFT_overlap_NB_3.png>

<IFFT_overlap_NB_3.png>