Re: There Is No Such Thing as Interference

"For negligible additional manufacturing cost you can make bands as arbitrarily narrow as you like, or even do away with bands altogether..."

You can do away with bands, which is not the same
as badnwidth. Narrow bandwidth, that is the range
of frequencies which the device will accept,
limits the data rate. Narrow bandwidth = low
speed data. Now tell me Nyquist and Shannon are
all wet.

In fact radio waves do interfere with themselves,
an example would be the frensel zone effects on
propagation.

A third item (there are many) is the mixing of
frequencies and their products. This can happen
in any non-linear system, even the ionosphere
(see Luxembourg Effect.) I hope I spelled that
correctly.

I think what you are getting at is spread spectrum
and UWB commuications systems. These are nothing
new. I saw UWB stuff in the mid-70's and it was
first proposed in the mid-50s'. Both of these
raise the noise floor as signals are added. This
eventually causes system failure. So in fact they
DO interfere with each other but not in the strict
sense of the word.

Your post is pretty much wrong on all counts.