I don't think that's possible at all. Radio waves have very long
wavelengths, unless you have a really huge "camera sensor" (the size of a
building or something) you'll never be able to form an actual image.
On Mon, May 18, 2015 at 11:06 PM, David Thomson <
tcbuilder@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> Ray,
>
> I am loosely quoting FCC bands, but I'm also using it just as a generic
> term to signify a range of frequencies used by a particular Tesla coil.
> Since Tesla coils are basically radio transmitters that can be tuned to any
> frequency there really is not a specific output frequency range to focus
> on.
>
> The idea of using CCD cameras that operate in the frequency range of the
> coil output seems like a good place to start. I can imagine a camera and
> processor that converts radio waves into visible frequencies for display on
> a monitor. The system could allow for color assignment to be "tunable" and
> "compressable" within the limits of the CCD. By compressable I mean having
> the ability to assign the visible spectrum to an adjustable bandwidth. By
> tunable I mean having the ability to assign the red spectrum to any
> specific radio frequency (within the limits of the CCD).
>
> Although I can imagine Hertz and others wanting to be able to visualize
> radio waves, I am not aware of any progress on this from 100 or more years
> ago. If you know of something, I would like to read about it.
>
> I imagine that if radio waves of a Tesla coil were observed, the Tesla coil
> itself would look like a light bulb with brightness and colors emanating
> from different parts. We would still need a "white" screen or other
> reflective surfaces in the background to see the effects of the light.
> After all, light is not actually visible, it just illuminates opaque
> objects. It would be similar to an x-ray machine or a flashlight.
>
> Dave
>
>
> On Mon, May 18, 2015 at 4:41 PM, R. E. von Postel <vonpostel@xxxxxxxxxxx>
> wrote:
>
> > Dave:
> > To save confusion please define what you mean by a "band". Are you
> > referring to the the bands allocated by international treaty and
> > administered by the FCC or "bands" which might be defined by other
> > authority?
> >
> > I would imagine that work along the lines you suggest, for "radio
> > frequencies", is available dating from the "spark and arc" days or
> > preceding it. Resurrecting it would make an interesting project. Did
> Hertz
> > write a paper on the subject?
> > Ray
> >
> >
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