Jim Kelley wrote:
Exactly. Thank you, Cecil. There are many physical mechanisms for
generating natural electrical noise. Ask any radio astronomer.

But I suspect the died-in-the-wool corona-ites would
argue that all EM noise is caused by corona even if
it originally occurred on another heavenly body.
Speaking of which, do you think Miss America's
aura is caused by corona?
--
73, Cecil http://www.w5dxp.com