GNU Radio

My own attempt at completing homework exercises from BAA GNU Radio Group Meeting 29/11/2025: Create an electronic keyboard which plays multiple music chords, and create an AM radio player

By Admin

My GNU Radio Companion GRC file that plays multiple music chords:

https://www.astronomy.me.uk/wp-content/uploads/2025/12/BAA-GNU-Radio-Meeting-Exercise-Chord-Selector-201225_GRC.zip

Video showing the above GRC in action:

My AM radio player (users can select from recorded IQ file or play music through an RTL-SDR dongle):

https://www.astronomy.me.uk/wp-content/uploads/2025/12/BAA-GNU-Radio-Meeting-Exercise-AM-Radio-201225.zip

By Admin

Related post

GNU Radio

In GNU Radio there is an AM demod block. If this wasn’t there what processes would be required to achieve same function?

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How do switch blocks and selector blocks in GNU Radio work?

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I am looking for a GNU Radio flowgraph on Github or elsewhere that shows me how to incorporate ability to choose between SDRs whilst running the program.

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