Jim Lux wrote:
Most likely, it's glow discharge off small water droplets shed from the
surface from which is charged. Basically the process is like an
electrostatic sprayer..

One very foggy night on Hwy 1 between Carmel and Santa Cruz,
I came up behind a mobile radio in operation. The glow
off the end of the antenna was bright orange. An oncoming
CHP officer stopped the vehicle for having a "red light"
visible from the front of the vehicle. When I left the
scene, the two were arguing whether it was really a "red
light" and whether the operator deserved a ticket or not.
I don't know what radio service was involved.
--
73, Cecil http://www.w5dxp.com
"Government 'help' to business is just as disastrous as
government persecution..." Ayn Rand