Re: Irrelevant
Big Boomer offered, "...[130] years ago. Initially these were all low frequency..."
Actually, prof Heinrich Hertz's very first experiments were reportedly in what we now call the UHF band. Like around 450 MHz (or 'million cycles per second' at the time) by some reports. Other reports mention wavelengths (4m) that would be VHF.
In any case, the *very* first RF experiments were much higher frequency than one might assume.
Mentioned only because it's interesting, not because aliens would have noticed it.
Biting the hand that feeds IT
