38 lines
1.7 KiB
Markdown
38 lines
1.7 KiB
Markdown
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# mcHF Gnuradio Simulation
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This is a simplified simulation of the mcHF signal paths.
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Currently only the RX Path is implemented, and even this is not complete.
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## Contributing
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Feel free to add more elements to the mchf Simulation. Please try to be as close as possible
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to the real implementation, since the purpose is to be able to simulate the mcHF not to build a
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new SDR in gnuradio. Of course experiments and propose changes can be demonstrated using the simulation.
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## Running it
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You will need a recent gnuradio-companion installed (gnuradio 3.7)
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You will need to install the hierarchical blocks in the subblocks folder.
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This can be done by opening them in the gnuradio-companion and pressing
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the "Generate" button (the one left to the "Run" button in the toolbar)
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Since the blocks have dependencies, you may have to generated other blocks
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restart gnuradio-companion before they will generate without error.
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You may also use the commandline grcc utility, which you just need to run with the filename as parameter.
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Same rule applies, generation will fail if the dependencies have not been generated before.
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Once that is done, you can open mchf_main.grc
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You will have to adjust the file paths in
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The simulation expects 48Khz IQ sounddata as input. This can be produced by the mcHF itself
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using the DIQ mode and a simple audio recorder. Of course any other IQ Recording of 16bit IQ data
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such as one made with HDSDR will work too. The output is saved in a wav file too. The default file paths are
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IQ Input: /tmp/mchfiq.wav
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Audio Output: /tmp/mchfaudio.wav
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The input file name is locate in mchf_rf_frontend.grc. Remember to regenerate after changing the filename.
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The output file name is in the mchf_main.grc file.
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