ooo interesting. that explains that!
well, right off the bat, i can say that relying upon my ears, the frequencies on are too low by a factor of ~2 when played back through my speakers if you compare the information society song to the page's output.
(indeed - i just checked the bell 103 spec, and the information society song is encoded at 2225/2025 hz)
Alda Vigdís (npub1eqw…v8ju)'s page is encoded at 1270/1070.
what i don't understand is the distinction that bell makes between the "originating station" (encoded at 1270) and the "answering station" encoded at 2225.
https://en.wikipedia.org/wiki/Bell_103