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Arthur T Knackerbracket has found the following story:
Amelia Earhart's final moments may have been broadcast around the world days after her plane disappeared in 1937, according to a group that analyzed radio distress calls.
The International Group for Historic Aircraft Recovery (TIGHAR) believes the aviation pioneer waded out to her crashed Lockheed Electra on the reef at the then-uninhabited Gardner Island to call for help, it wrote in a research paper.
[...] The Electra's radio could only communicate within a few hundred miles, but the transmitter also put out harmonics that allowed the signal to reach beyond that.
"High harmonic frequencies 'skip' off the ionosphere and can carry great distances, but clear reception is unpredictable," the paper says.
As a result, the signal was heard by people using shortwave radios at home in locations like Texas, Kentucky, Wyoming, Florida and Toronto.
In St. Petersburg, Florida, a teenage girl transcribed phrases like: "waters high," "water's knee deep -- let me out" and "help us quick," the Washington Post notes.
-- submitted from IRC
(Score: 2, Interesting) by Ethanol-fueled on Sunday July 29 2018, @03:56PM (2 children)
Exactly. When I was studying for my FCC GROL we learned about all kinds of things such as tropospheric scatter, and other methods which would extend the range of comms. The article and linked articles need to provide details.
(Score: 0) by Anonymous Coward on Sunday July 29 2018, @04:32PM (1 child)
Being sober doesn't make you smart. You're just as stupid as 40oz of Kentucky piss can make you, but sober.
(Score: 0, Troll) by Ethanol-fueled on Sunday July 29 2018, @07:33PM
I may not be from Kentucky, but I can drink Kentucky piss with the best of them. I still think Scots Whisky sucks assholes, by the way.