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Fun with gdb and sbitx #sBitx


 

On Thu, Nov 16, 2023 at 12:43 PM, Rafael Diniz wrote:
Btw, with regards to samplerate, with the current sBitx, where I can see signal up to 30-something kHz, and a passband around 25 kHz (in a soundcard operating at 96 kHz in the sbitx), for "direct passtru", it is just not possible to keep the whole bandwidth with just 48 kHz samplerate.

I have constructed the following attached flowgraphs hoping they illustrate what I'm trying to say.? The 'Note' blocks explain what they are doing.

You should be able to run them under gnuradio-companion with your simple_radio program running in another window to produce the needed stream.

If they don't load, chances are because I am using gnuradio 3.10.x which is new, let me know what version you are running and I can try to make ones that work with your version.

Again, I'm no expert, just an enthusiast, so feel free to correct me.

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Regards,
Dave, N1AI