Laurence Payne wrote:

On Sat, 03 Jul 2004 06:33:26 GMT, Logan Shaw
wrote:

So why is it you think that RF can't exist at audible frequencies?

What's the definition of "RF" on your planet? :-)

Here's one possible definition:

http://en.wikipedia.org/wiki/Radio_frequency

From the text: "The ELF, SLF, ULF, and VLF bands overlap the AF (audio
frequency) spectrum, which is approximately 20–20,000 Hz".

Also, there's a nice chart of how (basically) the entire spectrum is
allocated at http://www.ntia.doc.gov/osmhome/allochrt.html . We used
to have a poster of this on the wall at one place I worked. It's a
pretty cool chart. Anyway, the chart shows allocated frequencies
down to 9 kHz, just as the FCC's Table of Frequency Allocations does.
You can find the latter at http://www.fcc.gov/oet/spectrum/ .

Of course, even if these frequencies weren't allocated, this would
not mean that the phenomenon known as "radio" can't happen at those
frequencies. And you can also argue (and I'll agree) that they aren't
the most useful frequencies of the spectrum. But the point is that
RF can exist at audible frequencies.

- Logan