gravity wrote:

"Tom Donaly" wrote in message
om...

Dave wrote:

Jim Kelley wrote:



Tom Donaly wrote:



Where's the experimental evidence, Cecil?



Ever heard of Ben Franklin? :-)

73, ac6xg


Every winter here in New England we run numerous experiments, every time
I walk across the living room and touch a metal door knob.

The US military has an ESD specification of 25 KV @ 5 KOhms from a
healthy capacitor as a simulator.

Electro static discharge on antennas has been around for years. It is

real!

Dry Climate and Wind are all that's needed. Now, is the Physics at the
air molecule level [Oxygen, Nitrogen, etc.], ionized Oxygen or Nitrogen
atoms, charged dust particle level [that just begs the issue ... how did
the dust get charged?], Van De Graff level, etc.? Who knows?

But, the antenna ESD is a very REAL effect. You can hypothesize the
cause all day. To solve the problem at the system level, I added an ESD
bleed into my antenna switches.

I'm going to filter this thread to the circular file.


No one said ESD didn't exist. But you hit the nail on the head so far
as wind caused ESD, "Who knows?" I don't, and neither does Cecil,
although he thinks he does.
73,
Tom Donaly, KA6RUH


i thought it came from distant thunderstorms?

and if wind blows an ELF system around, it does get noisier. i believe
that's due to physical movement of the antenna system.

Gravity



You could be right, who knows? Certainly not the people who
are afraid to experiment.
73,
Tom Donaly, KA6RUH