Gene Fuller wrote:
"The term precipitation static denotes a type of interference frequently
observed in an airplane passing through snow or rain. Under such
circumstances, the airplane may become electrically charged to such a
high potential with respect to the surrounding space that a corona
discharge breaks out at some sharp point on the plane. The interference
that this corona discharge produces with radio reception, termed
precipitation static, is particularly serious at short-wave and lower
frequencies."

Corona causes RF noise for sure. But RF noise also occurs in
the complete absence of corona. RF noise in the complete absence
of corona is what we have been discussing. *Nobody* is arguing that
corona doesn't cause RF noise. We are arguing that RF noise can be
caused by something other than corona.
--
73, Cecil http://www.qsl.net/w5dxp