Heterodyne is a signal processing technique, and superheterodyne is an application of that for radio tuning. This video is a great explainer (and I also highly

Heterodyne is a signal processing technique, and superheterodyne is an application of that for radio tuning. This video is a great explainer (and I also highly recommend every other video on the channel): https://www.youtube.com/watch?v=hz_mMLhUinw https://www.youtube.com/watch?v=hz_mMLhUinw