Rain Static ?
 

Denny wrote:
That dry wind will cause high voltage charging -and arcing- of
insulated antennas and static noise, especially on long wires - that
this is mostly friction charging, a similar mechanism to rubbing silk
on glass, though charged body impact of dust may be relevant...

One wonders if only nitrogen and oxygen molecules
rubbing on copper can cause that effect.
--
73, Cecil http://www.w5dxp.com

Rain Static ?
 

On 11 Dec 2006 04:37:01 -0800, "Denny" wrote:

Anyone who says you can't revive a dead horse with a good, firm beating
has not met this group :)

Hi Denny,

.... and then you proceed to whip the asphalt through its stripped rib
cage. Bored?

antenna is a "convertor"
You are robbing Art's rice bowl.

73's
Richard Clark, KB7QHC

Rain Static ?
 

John Smith wrote:
Indeed, the worst experience I have ever had is crossing nylon carpets
on very dry days in well insulated footwear.

In Odessa, TX, I once went potty after doing exactly
that and drew a two inch arc from the water in the
john. OUCH!!!

However, I have heard
horror stories of purplish cornea discharges from antennas which are a
sight to behold.

One of the strangest cases of corona that I ever
saw was a ham driving down CA Highway 1 near Monterrey
in the fog. It looked for all the world like he had
a reddish light on top of his whip. The CA highway
patrol even stopped him for it. I don't know if
he got a ticket or not.
--
73, Cecil http://www.w5dxp.com

Rain Static ?
 

Cecil Moore wrote:

The way I reduced the problem with open-ended antennas is
to use heavily insulated wire. Bare conductors transfer
all charges. 600 volt insulation blocks charge transfer. In
my experience, 1000v insulation blocks most charge transfer.

Your radio doesn't actually hear clear down to DC, does it? :-)

The effect is heard as a result of the charge striking the antenna,
thus changing the charge on the antenna. As you know, for a given
capacitance, a 600 volt dielectric couples charge just as well as a
1000 volt dielectric. In such a case the 'pop' is capacitively
coupled broadband noise. But whether the antenna is insulated or not,
looped or not, the static noise is due to a rapid (albeit small)
change in charge on the antenna being coupled by some means into the
receiver.

I use something called "Quietflex" that has 1000v insulation.
Most of the precipitation static doesn't transfer to
the antenna wire while RF waves/photons flow right
through the insulation with little attenuation. I suspect
plastic encased antennas are quieter than bare antennas.

Maybe. It would make sense that the amount of static noise coupled
from the environment would be proportional to the coupling
capacitance. Knowing that charge tends to gather on a surface, the
thicker the 'dielectric', the lower the capacitance. A small series
capacitor in most circuits would tend to differentiate an impulse,
producing a signal which is proportional to the slope of the impulse.
With larger values of capacitance the coupled signals tend to follow
the input. So although it's not likely that insulation would reduce
the number of noise 'events', it is possible that it would narrow the
resulting broadband power spectrum. This could be helpful, as long as
it narrows it in the part of the spectrum you happen to be using. ;-)

73, ac6xg

Rain Static ?
 

Richard, we get bored at some of your comments on this group
but we have learned to live with it
When you want to get "bored" you go to San Francisco


Richard Clark wrote:
On 11 Dec 2006 04:37:01 -0800, "Denny" wrote:

Anyone who says you can't revive a dead horse with a good, firm beating
has not met this group :)

Hi Denny,

... and then you proceed to whip the asphalt through its stripped rib
cage. Bored?

antenna is a "convertor"
You are robbing Art's rice bowl.

73's
Richard Clark, KB7QHC

Rain Static ?
 

art wrote:
Richard, we get bored at some of your comments on this group
but we have learned to live with it
When you want to get "bored" you go to San Francisco


Richard Clark wrote:

On 11 Dec 2006 04:37:01 -0800, "Denny" wrote:


Anyone who says you can't revive a dead horse with a good, firm beating
has not met this group :)

Hi Denny,

... and then you proceed to whip the asphalt through its stripped rib
cage. Bored?


antenna is a "convertor"

You are robbing Art's rice bowl.

73's
Richard Clark, KB7QHC



Just what is that remark supposed to mean, Art?
73,
Tom Donaly, KA6RUH

Rain Static ?
 

Tom Donaly wrote:
...
When you want to get "bored" you go to San Francisco
...

Tom:

I don't know about you, but I take the above as a warning! Well
intentioned, and one best respected!

STAY OUT OF FRISCO!

Regards,
JS

Rain Static ?
 

John Smith wrote:
Tom Donaly wrote:

...

When you want to get "bored" you go to San Francisco

...

Tom:

I don't know about you, but I take the above as a warning! Well
intentioned, and one best respected!

STAY OUT OF FRISCO!

Regards,
JS

John, I live just a few miles south of San Francisco. I've been living
here since the early '70's. My wife and I go up there on a regular
basis to go shopping and visit her relatives, who live there. Art was
being an invidious pig and I called him on it. Now, Art, just what
did you mean by that?
73,
Tom Donaly, KA6RUH

Rain Static ?
 

.. Art was
being an invidious pig and I called him on it.

snip and I was responding to an invidious pig
When he stops these snide attacks on me then things
like this wouldn't happen Richard declined my hand on
all this because he says he enjoyes it
So as somebody said I am not here to be a lump on a log
that people feel they must take a hack at. Tom you have
been around this group for a long time and know how Richard is
and I am determined not to be trashed into oblivion like CHIP
in the face of attacks from him , Roy and others.
You only have to go back a few posts to see
examples of his trash towards me and I will retaliate, anyway
I can until he stops..... His choice
73,
Tom Donaly, KA6RUH

Rain Static ?
 

art wrote:
. Art was
being an invidious pig and I called him on it.
...

Art:

Lighten up. If this fails to be a fun diversion, hobby, pursuit for
you, take up another hobby man!

When you cite richard for taxing your patience, do you ever think you
might tax others?

If you are going to give some fencing instructions, expect to take some
.... perhaps this game is best suited for gentlemen?

Regards,
JS