Re: Seibt: Visualizing Standing Waves on a Resonator by Corona

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Original poster: dwp <davep@xxxxxxxx>


>     Has anyone ever put enough power into a RF transmission line to
> actually see corona?
        not personally
        its been done many times, by accident and design,
        described in antenna texts.

>  That would represent a lot of peak power.  VHF radar transmitter maybe.
        Doesn't take much, actually.  100W or so and an unterminated
        line

>     I once tried to do something similar by placing a wave guide in a
> vacuum jar and back filling with neon.  Thought it might be possible to
> see standing waves and waveguide moding, but the impedance of the
> ionized gas was so low as to render the experiment unworkable.  A better
> experiment design might have worked.
        By allo accounts it would.
        compare to 'neon TR Switch' from earlt radar days...

        best

                dwp