Building an FM radio from $3 radio chip and an 84MHz ARM Arduino

Re:Building an FM radio from $3 radio chip and an 84MHz ARM ... by THENATHE on Sunday October 09, 2022 @09:08PM (#33146817)

In 1930-something, my grandfather built a passive radio to use on his family farmhouse without electricity. He ran a wire all the way from the basement (where he happened to get the best signal and for other reasons) all the way to his attic room, and would stay up late all night listening to the radio with his brother. An aside, but this article made me think of this fun little story.

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Re:Building an FM radio from $3 radio chip and an 84MHz ARM ... by deevious on Monday October 10, 2022 @05:04AM (#33149307)

The wire from the basement was for an earth ground, he probably had another antenna wire either in the attic or going outside. Check out Galena detector radios.

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Re:Building an FM radio from $3 radio chip and an 84MHz ARM ... by bdcravens on Monday October 10, 2022 @10:30AM (#33151865)

Yes, my grandfather did the same thing (a bit earlier, probably late 1910s or early 20s, as he was born in 1908). He used a cyclindrical oatmeal box and wound copper around it to make a tuner. The story was immortalized in a book the Texas Governor's Committee on Again published in the 70s.

https://www.amazon.com/Texas-Sampler-Donna-Bearden-Frucht/dp...

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