Hi Markus, hi group!

Thank you Marcus for mentioning the "Luxemburg effect".
Yes I had a rough idea that its somekind of cross modulation in the ionosphere, 
when a strong signal is present. 

Now I want to know more. Using a search engine for half an hour, I'm not 
satisfied with the infos. 
How does this interaction, modulation take place, where is the nonlinearity?

Do You know useful links or even a book to read about it?

Thank You!
Have a nice evening
Dennis




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