what do digital radiosignals REALLY look and sound like ??

Greetings to all,


A technical issue in this group for a change:


Ever wondered what digital radiosignals (at least on shortwave) really
look and sound like?

(receiver located in the Netherlands).
http://websdr.ewi.utwente.nl:8901/


Let's make a small quiz about this: who can find the most interesting
radio-signal and explain it?



(trick: click on a waterwall and turn the scroll-wheel of your mouse up
to zoom in).



Cheerio! Kr. Bonne.
.

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