Comment on pump up the jamz

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dsilverz@thelemmy.club ⁨2⁩ ⁨weeks⁩ ago

I once saw a video of a person touching a grounded sausage to the metallic structure of an AM radio tower, the transmission was audible as the sausage was being zapped. If there’s a merely conductible thing grounded near the tower, I guess it’ll sort of “coil whine” (a well-known phenomenon when electrical components physically vibrate due to the passage of current), converting to sound whatever it’s being transmitted at the moment. This includes the tower structure itself, if the electrical grounding isn’t properly done or if there’s some grounding leak. Otherwise, a grounded thing touching the tower would suffice to convert the transmission into sound, if those radio-telescopes use AM modulation (I’d guess they do, because AM modulation is known for reaching longer distances than FM).

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