HackerTube

am radio tower power

AaronCited 7× on HN, 2020–2023
YouTube
demo · general · evergreen · 2020–2023 on HN

A one-minute clip where an AM radio station can be heard through the arcing of a high-power transmitter tower.

Shared as a curiosity showing that with enough power almost anything can demodulate AM radio.

Electronics & circuit designEveryday physics & science demos#amradio#transmittertower#rectification#arcing

7 comments from Hacker News

@jjoonathan2023-09 · in “A scientific curiosity that happened to me”

Slope conversion is the hard part, once it's AM just about any energy conversion will do. abs(x) and |x|^2 are plenty nonlinear. ▶ this video

Cites View on HN
@blincoln2023-08 · in “Radio frequency hearing in humans and its effects (2003)”

I grew up in a house that was next door to a radio rebroadcasting facility, and we could definitely hear the radio station coming from the walls of our house sometimes, e.g. even their station identification so there was no ambiguity. I assumed it was the house wiring (mostly knob and tube) acting as an antenna. I'm reasonably sure that was AM, though. Was the sound you heard like either of these? ▶ this video link

Cites View on HN
@ngcc_hk2022-04 · in “How is portable AM radio possible?”

▶ this video link Do not understand the explanation. Just put a space will get the hn act. And copy is just right click or touch-hold. Am I missing something ?

Cites View on HN
@1970-01-012022-03 · in “How is portable AM radio possible?”

Fun link time: With enough power, literally anything can become an AM radio. No tuning or filtering is required. ▶ this video link

Cites View on HN
@PoachedSausage2020-06 · in “40 uses for Germanium Diodes (1950) [pdf]”

I'm not entirely sure what process is converting to sound, but the metal fence makes a great antenna and we are talking about 10's of feet from the antenna with 500 kW AM at 200 kHz going into it. It could actually have been arcing: ▶ this video

Cites View on HN

Up next