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The Superheterodyne Radio: No really, that's its name

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Further reading 1

What becomes visible when you change representation? →An average, a spectrum and a geometric diagram each foreground a different structure. Before asking which view is intuitive, ask which comparison you need it to support.This video helps answer · Hold the filter still and move the signal

Caption notes

A superheterodyne receiver varies a local oscillator as it tunes, moving the signal of interest to a fixed intermediate frequency. Watson uses the frequency difference to explain why the selective filter can work in one range.

Archived captions (transcription method unspecified) ↗
Original passages · 2
the difference between the two frequencies.
The Superheterodyne Radio: No really, that's its name · ▶ 2:31–2:35
the filter more precise because it is set to a fixed frequency
The Superheterodyne Radio: No really, that's its name · ▶ 6:10–6:14

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