[bars] Fwd: [yccc] Interesting OT: 500 Kw AM radio

[Kenneth Weinbeck]

-------- Original Message --------
 Subject: [yccc] Interesting OT: 500 Kw AM radio
 From: "Kermit Lehman via groups.io" <ktfrog007=aol.com at groups.io>
 Sent: Wednesday, January 26, 2022, 12:13 PM
 To: yccc at groups.io
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Something from Quora I found interesting. Here's a good link for further info:

https://www.neh.gov/humanities/2015/mayjune/feature/in-the-1930s-radio-station-wlw-in-ohio-was-americas-one-and-only-sup


73,
Ken, AB1J

Bert Willke  Ph.D. in Physics (1963), Massachusetts Institute of Technology  
What happens if a low frequency wave (1km wavelength) has a super high amplitude? Meaning a ton of energy despite its low energy per photon. How does it interact with matter?That's almost half the frequency of the most powerful AM station ever: WLW at 700 kHz ran 500,000 watts from 1934 to 1939. You could pick it up over half the US in the day and of course anywhere at night. Station engineers had to specially rewire some nearby houses because the lights wouldn't go off. Some continued to pick up the station in their innerspring mattresses. In some cases their gutters were pulled loose. Nearby farmers picked up the station on their barbed wire fences. It came out of loudspeakers whether the radio was on or off. Nonmetals were not significantly affected. Amazingly, no fires were reported. In 1939 the FCC limited clear channel stations to 50,000 watts, and other stations to much lower wattage. 50,000 watt stations are strong enough to be heard almost everywhere at night. Through WW2, the station was kept operable in case of national emergency. By the end of the war it was improved to the point it could transmit at 1 million watts to reach the entire country in national emergencies. Fortunately, it never came to that.


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