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Re:Practical SDR: Getting started with software-defined radio by roelschroeven on Friday May 30, 2025 @09:20AM (#44135981)
I could be wrong but I think that only works for AM, not for FM.
Re:Practical SDR: Getting started with software-defined radio by cowboylowrez on Friday May 30, 2025 @05:58PM (#44140238)
supposedly you can demodulate FM with "slope detection", off tuning slightly so as the signal varies in and out of the resonance of the tuned circuit you can get an audio signal. Its gonna be mono lol. The "Q" of the tuned circuit needs to be pretty good and its interesting to see that they use copper tubing as the coil wire or more technically in the linked page, a resonator.

https://electronbunker.ca/eb/FMCrystalSet.html