Ed wrote:
I am only interested in the long term reliability of an aluminum ground
system in comparison to the more common copper system. This is for
lightning suppression only, I am not addressing RF issues. I am wondering
if aluminum can handle the potential surge currents that copper can... and
how well does its ground conductivity work when buried, when compared to
copper.

Ed K7AAT

If you're talking lightning, you're talking RF!

73, Roger

If you're talking lightning, you're talking RF!

73, Roger


Roger, Lightning is DC. How could it be " RF " if it has no
"frequency" ?


Ed




..

"Ed" wrote in message
. 192.196...


If you're talking lightning, you're talking RF!

73, Roger


Roger, Lightning is DC. How could it be " RF " if it has no
"frequency" ?


Ed


A lightning bolt is a transient so its current must be composed of
components having a wide range frequencies. Consequently lightning
conductors need small self-inductance as well as small resistance to work
properly.

Chris

"Ed" wrote in message
. 192.196...


If you're talking lightning, you're talking RF!

73, Roger


Roger, Lightning is DC. How could it be " RF " if it has no
"frequency" ?

lightning has MANY frequencies from DC to many MHz.

Dave wrote:

"Ed" wrote in message
. 192.196...


If you're talking lightning, you're talking RF!

73, Roger


Roger, Lightning is DC. How could it be " RF " if it has no
"frequency" ?

lightning has MANY frequencies from DC to many MHz.


DC to daylight in fact. Well, light at least. 8^)

- 73 de Mike N3LI -

On Fri, 25 Sep 2009 09:28:46 -0400, Michael Coslo
wrote:

lightning has MANY frequencies from DC to many MHz.


DC to daylight in fact. Well, light at least. 8^)

And all this radiation happens because of a severe lack of
equilibrium.

Art can't fool Mother Nature.

73's
Richard Clark, KB7QHC

Richard Clark wrote:
On Fri, 25 Sep 2009 09:28:46 -0400, Michael Coslo
wrote:

lightning has MANY frequencies from DC to many MHz.

DC to daylight in fact. Well, light at least. 8^)

And all this radiation happens because of a severe lack of
equilibrium.

Art can't fool Mother Nature.


I once suffered a severe case of lack of equilibrium, probably related
to an adolescent experiment with ethanol containing liquids. It left a
lasting impression on me and I avoid the state with great prejudice.

But since I have regained my equilibrium, my friends say that I am
positively radiant! Perhaps our friend speaks sooth?

- 73 de Mike N3LI -

On Mon, 28 Sep 2009 14:25:12 -0400, Michael Coslo
wrote:

Perhaps our friend speaks sooth?

All depends if sooth is an adjective or a noun.

The OED (a notably gay English dictionary) offers
"soothing, soft, smooth"

73's
Richard Clark, KB7QHC

Ed wrote:
Lightning is DC. How could it be " RF " if it has no
"frequency" ?

Fourier analysis of pulsed DC?
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com

"Cecil Moore" wrote in message
...
Ed wrote:
Lightning is DC. How could it be " RF " if it has no
"frequency" ?

Fourier analysis of pulsed DC?

Sorry, I swore of that stuff as soon as I passed the final.