common mode current
 

"The current which flows on the outer surface of the shield is called common
mode current. In other words, it is the unbalanced current not returned
within the coaxial cable.
This leads to a very important question. If the current isn't returned in
the cable, where does it go? The answer is, it radiates! In fact, the amount
of radiation from the coax cable is directly proportional to the common-mode
current on that cable." From: http://www.k0bg.com/common.html

"In fact, the amount of radiation from the coax cable is directly
proportional to the common-mode current on that cable."

The currents consists of electrons.

Does it means that the electrons jump off from the end of the radiator?

In Faraday time no such meters but Faraday had know that electrons (nuclei)
jump off from the end of the open circuit.

Also L. Lorenz known that the light is the oscillatory flow of electrons.

S*

common mode current
 

Szczepan Bialek wrote:
"The current which flows on the outer surface of the shield is called common
mode current. In other words, it is the unbalanced current not returned
within the coaxial cable.
This leads to a very important question. If the current isn't returned in
the cable, where does it go? The answer is, it radiates! In fact, the amount
of radiation from the coax cable is directly proportional to the common-mode
current on that cable." From: http://www.k0bg.com/common.html

"In fact, the amount of radiation from the coax cable is directly
proportional to the common-mode current on that cable."

The currents consists of electrons.

Does it means that the electrons jump off from the end of the radiator?

No, it does not mean that.

There are no jumping electrons involved in radiation and you are an ineducable
idiot.


In Faraday time no such meters but Faraday had know that electrons (nuclei)
jump off from the end of the open circuit.

No, Faraday did NOT know that as it doesn't happen that way and you are
an ineducable idiot.

Also L. Lorenz known that the light is the oscillatory flow of electrons.

No, Lorenz did NOT know that as it doesn't happen that way and you are
an ineducable idiot.

common mode current
 

On 7/10/2012 1:05 PM, wrote:
Szczepan Bialek wrote:
"The current which flows on the outer surface of the shield is called common
mode current. In other words, it is the unbalanced current not returned
within the coaxial cable.
This leads to a very important question. If the current isn't returned in
the cable, where does it go? The answer is, it radiates! In fact, the amount
of radiation from the coax cable is directly proportional to the common-mode
current on that cable." From: http://www.k0bg.com/common.html

"In fact, the amount of radiation from the coax cable is directly
proportional to the common-mode current on that cable."

The currents consists of electrons.

Does it means that the electrons jump off from the end of the radiator?

No, it does not mean that.

There are no jumping electrons involved in radiation and you are an ineducable
idiot.


In Faraday time no such meters but Faraday had know that electrons (nuclei)
jump off from the end of the open circuit.

No, Faraday did NOT know that as it doesn't happen that way and you are
an ineducable idiot.

Also L. Lorenz known that the light is the oscillatory flow of electrons.

No, Lorenz did NOT know that as it doesn't happen that way and you are
an ineducable idiot.




I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do I saw falling. Anyway, something was coming down from my antenna.

Michael

common mode current
 

"Boomer" wrote in message
...
I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do do
I saw falling. Anyway, something was coming down from my antenna.

Michael

Hello Michael.

The do do has been extinct for centuries. Have I misunderstood your email?

73, Ian.

common mode current
 

Boomer wrote:

I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do I saw falling. Anyway, something was coming down from my antenna.

Me too but I know what it is; the insulation from the cheap Home Depot house
wire I used to make the antenna.

The damn insulation is hard to strip off when it is new but falls off all
by itself after a couple of years in the sun.

common mode current
 

common mode current
 

On Tuesday, July 10, 2012 11:49:52 AM UTC-5, Szczepan Bialek wrote:
The currents consists of electrons.

Sorry, electrons cannot move fast enough to support RF current which cannot flow inside a wire. The RF EM wave flow is supported by photons moving at the speed of light in a cloud surrounding the wire.

Does it means that the electrons jump off from the end of the radiator?

Electrons are known to "jump off from the end of the radiator". It's called corona and it is visible at night. Fortunately, it happens only under special conditions because that energy is not coherently radiated, i.e. not useful for anything except melting the ends of an antenna.

In Faraday time no such meters but Faraday had know that electrons (nuclei)
jump off from the end of the open circuit.

Yes, arcing is a common occurrence. Unfortunately, nowadays it is useless (and illegal) for RF communications. BTW, nuclei is plural for nucleus and there are no electrons in the nucleus.
--
73, Cecil, w5dxp.com

common mode current
 

"Rob" napisa³ w wiadomo¶ci
...
wrote:
Boomer wrote:

I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do I saw falling. Anyway, something was coming down from my antenna.

Me too but I know what it is; the insulation from the cheap Home Depot
house
wire I used to make the antenna.

The damn insulation is hard to strip off when it is new but falls off all
by itself after a couple of years in the sun.

Maybe the insulation is falling off because of all the electrons that
have tried to jump off the wire when you were transmitting, and became
trapped inside the insulation?

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.
S*

common mode current
 

Szczepan Bialek wrote:

"Rob" napisa³ w wiadomo¶ci
...
wrote:
Boomer wrote:

I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do I saw falling. Anyway, something was coming down from my antenna.

Me too but I know what it is; the insulation from the cheap Home Depot
house
wire I used to make the antenna.

The damn insulation is hard to strip off when it is new but falls off all
by itself after a couple of years in the sun.

Maybe the insulation is falling off because of all the electrons that
have tried to jump off the wire when you were transmitting, and became
trapped inside the insulation?

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.

From experience we all know that there is no difference between te
behaviour of insulated or blank wires when used as an antenna. We use
what is convenient.
This sort of contradicts your claim that electrons jump off the wire,
as this would not work as well with an insulated wire as with a blank
wire.

common mode current
 

"Szczepan Bialek" wrote in message
.. .

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.
S*

Hello Szczepan.
"Diwire"? What's that?
"From the radiating wire the electrons jump off and penetrate into the
counterpoise wire."
Sounds like a rather short circuit. Not much chance of a QSO.

Regards, Ian.

common mode current
 

"W5DXP" napisal w wiadomosci
...
On Tuesday, July 10, 2012 11:49:52 AM UTC-5, Szczepan Bialek wrote:
The currents consists of electrons.

Sorry, electrons cannot move fast enough to support RF current which cannot
flow inside a wire. The RF EM wave flow is supported by photons moving at
the speed of light in a cloud surrounding the wire.

Photons are the energy portions. Like the tons in sound.

Does it means that the electrons jump off from the end of the radiator?

Electrons are known to "jump off from the end of the radiator". It's called
corona and it is visible at night. Fortunately, it happens only under
special conditions because that energy is not coherently radiated, i.e. not
useful for anything except melting the ends of an antenna.

Before melting the end is lighting. Before shine it is hot. In the all
stadiums the electrons jump off (from transmitting antennas).

In Faraday time no such meters but Faraday had know that electrons
(nuclei)
jump off from the end of the open circuit.

Yes, arcing is a common occurrence. Unfortunately, nowadays it is useless
(and illegal) for RF communications. BTW, nuclei is plural for nucleus and
there are no electrons in the nucleus.

In Faraday time no nucleus. Now the Faradays nuclei have name electrons.
Maxwell name is "electric particles".
All of them are in space. The last names are "Dirac electron sea" and the
"rare plasma".
S*

common mode current
 

"Szczepan Bialek" wrote in message
...
In Faraday time no nucleus. Now the Faradays nuclei have name electrons.
Maxwell name is "electric particles".
All of them are in space. The last names are "Dirac electron sea" and the
"rare plasma".
S*
Hello Szczepan.
I am a tad concerned that atoms in Mr Faraday's time didn't have the
nucleus. I wonder when the nucleus was added to the atom, who added it and
how much power was needed for this nuclear (fusion?) work.

I think we may be wearing out Mr Bialek's circuits. A lack of electrons,
perhaps? Didn't he have problems with insulators which didn't insulate.

May I suggest a new newsgroup for these postings? Something along the line
of rec.radio.amateur.humour ?

73, Ian.

common mode current
 

Szczepan Bialek wrote:

"Rob" napisa? w wiadomo?ci
...
wrote:
Boomer wrote:

I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do I saw falling. Anyway, something was coming down from my antenna.

Me too but I know what it is; the insulation from the cheap Home Depot
house
wire I used to make the antenna.

The damn insulation is hard to strip off when it is new but falls off all
by itself after a couple of years in the sun.

Maybe the insulation is falling off because of all the electrons that
have tried to jump off the wire when you were transmitting, and became
trapped inside the insulation?

Your antennas are the diwire.

What do you mean by "Your antennas"?

An antenna is an antenna, there is no yours, mine, and theirs.

What is "diwire"; there is no such word in English?

If you are trying to babble about the construction material of and anteena,
the material used only effects the ohmic losses of the antenna.

From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.

There are no electrons jumping anywhere.

You are an ignorant, babbling, ineducable, idiot.

It would be interesting to know if is any difference in behavior of the
different wires.

It would be interesting to know if you will EVER be able to understand
anything.

How many antennas have you built in your lifetime?

Why do you refuse to answer the question?

Is it because you have built zero antennas and you are trying to say all
the people that have successfully built hundreds that they are all wrong?

common mode current
 

Szczepan Bialek wrote:
In Faraday time no nucleus. Now the Faradays nuclei have name electrons.
Maxwell name is "electric particles".
All of them are in space. The last names are "Dirac electron sea" and the
"rare plasma".
S*

And today we have the Higgs bosons. How do they fit in?

common mode current
 

U¿ytkownik "Ian" napisa³ w wiadomo¶ci
...
"Szczepan Bialek" wrote in message
.. .

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.
S*

Hello Szczepan.
"Diwire"? What's that?

In English the Ham dipole is the same as the two wires where one is
connected to the live conductor and the second to the bride.
In Polish the Ham dipole consist of the radiator and counterpoise.
So the correct name for such aerial is "diwire".


"From the radiating wire the electrons jump off and penetrate into the
counterpoise wire."
Sounds like a rather short circuit. Not much chance of a QSO.

From Maxwell time all circuits are closed (displacemment current).
See at that: http://educypedia.karadimov.info/lib...entstehung.gif

The short circuit would be if the radiator and the counterpoise are close to
itself.
They are in such cofiguration in the transmitting line.
Have you QSO with the line alone?
S*

common mode current
 

"Rob" napisa³ w wiadomo¶ci
...
Szczepan Bialek wrote:

"Rob" napisa3 w wiadomo?ci
...
wrote:
Boomer wrote:

I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird
do
do I saw falling. Anyway, something was coming down from my antenna.

Me too but I know what it is; the insulation from the cheap Home Depot
house
wire I used to make the antenna.

The damn insulation is hard to strip off when it is new but falls off
all
by itself after a couple of years in the sun.

Maybe the insulation is falling off because of all the electrons that
have tried to jump off the wire when you were transmitting, and became
trapped inside the insulation?

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.

From experience we all know that there is no difference between te
behaviour of insulated or blank wires when used as an antenna. We use
what is convenient.
This sort of contradicts your claim that electrons jump off the wire,
as this would not work as well with an insulated wire as with a blank
wire.

As you know the insulators do not stop the "oscillatory flow of electrons"
(radio waves) at your frequency.

But you can order in NASA proper insulator.
S*

common mode current
 

napisa³ w wiadomo¶ci
...
Szczepan Bialek wrote:


How many antennas have you built in your lifetime?

Why do you refuse to answer the question?

I was writting many times that a radio was/is/and will be the black box.

Is it because you have built zero antennas and you are trying to say all
the people that have successfully built hundreds that they are all wrong?

Each area has their own language.
Simply same of you do not know that "dipole" is a radiator and counterpoise.

So you are right that the "dipole" do not need the ground.
Do not need, because the ground (counterpoise) is the integral part of the
"dipole".

In summary Marconi is right.
S*

common mode current
 

"Rob" napisa³ w wiadomo¶ci
...
Szczepan Bialek wrote:
In Faraday time no nucleus. Now the Faradays nuclei have name electrons.
Maxwell name is "electric particles".
All of them are in space. The last names are "Dirac electron sea" and the
"rare plasma".
S*

And today we have the Higgs bosons. How do they fit in?

The whole knowledge on waves are now the top secret.
In place of the knowledge are the Heavisde's equations.

But the fundamentals are now on line.
In XIX century scientists were sure that everything on electricity and waves
are explained.
Now the microphysics is a top secret.
S*

common mode current
 

"Szczepan Bialek" wrote in message
...


In English the Ham dipole is the same as the two wires where one is
connected to the live conductor and the second to the bride.
In Polish the Ham dipole consist of the radiator and counterpoise.
So the correct name for such aerial is "diwire".


"Szczepan Bialek" wrote in message
...

In summary Marconi is right.
S*

Hello Szczepan.
Oh dear! A dipole is a dipole regardless of the country in which it is used,
be it the UK, the USA or Poland. Seems that you still do not understand a
dipole.

If you want to believe that radio hasn't progressed since the days of
Marconi then that is fine by me. You'll be wrong but I can live with that.

Regards, Ian.

common mode current
 

Szczepan Bialek wrote:

As you know the insulators do not stop the "oscillatory flow of electrons"
(radio waves) at your frequency.

Radio waves are NOT "oscillatory flow of electrons", you babbling, ignorant,
ineducable, idiot.

But you can order in NASA proper insulator.

NASA is not a store and you can not order anything from NASA, you babbling,
ignorant, ineducable, idiot.

How many antennas have you built in your lifetime?

common mode current
 

Szczepan Bialek wrote:

U?ytkownik "Ian" napisa? w wiadomo?ci
...
"Szczepan Bialek" wrote in message
.. .

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.
S*

Hello Szczepan.
"Diwire"? What's that?

In English the Ham dipole is the same as the two wires where one is
connected to the live conductor and the second to the bride.

There is no "Ham dipole", there are only dipoles.

There is no "live conductor" and there is no "bridge".

In Polish the Ham dipole consist of the radiator and counterpoise.

There is no "Ham dipole", there are only dipoles.

A dipole does not have a counterpoise.


So the correct name for such aerial is "diwire".

Pure babble.


"From the radiating wire the electrons jump off and penetrate into the
counterpoise wire."
Sounds like a rather short circuit. Not much chance of a QSO.

From Maxwell time all circuits are closed (displacemment current).
See at that: http://educypedia.karadimov.info/lib...entstehung.gif

This picture has nothing to do with what is being discussed.

The short circuit would be if the radiator and the counterpoise are close to
itself.

Pure babble.

They are in such cofiguration in the transmitting line.

Pure babble.

Have you QSO with the line alone?
S*

How many antennas have you built in your lifetime that you continue to argue
with and ignore people that have build hundreds of antennas?

common mode current
 

Szczepan Bialek wrote:

napisa? w wiadomo?ci
...
Szczepan Bialek wrote:


How many antennas have you built in your lifetime?

Why do you refuse to answer the question?

I was writting many times that a radio was/is/and will be the black box.

Babble; why do you refuse to answer the question?

Is it because you have built zero antennas and you are trying to say all
the people that have successfully built hundreds that they are all wrong?

Each area has their own language.

So what?

Why do you refuse to answer the question?

Simply same of you do not know that "dipole" is a radiator and counterpoise.

A dipole does NOT have a counterpoise.

So you are right that the "dipole" do not need the ground.
Do not need, because the ground (counterpoise) is the integral part of the
"dipole".

Pure babble.

In summary Marconi is right.

Marconi was wrong.

How many antennas have you built in your lifetime?

Why do you refuse to answer the question?

Is it because you have built zero antennas and you are trying to say all
the people that have successfully built hundreds that they are all wrong
and you don't want to admit you are an ignorant, inducable, idiot?

common mode current
 

Szczepan Bialek wrote:

"W5DXP" napisal w wiadomosci
...
On Tuesday, July 10, 2012 11:49:52 AM UTC-5, Szczepan Bialek wrote:
The currents consists of electrons.

Sorry, electrons cannot move fast enough to support RF current which cannot
flow inside a wire. The RF EM wave flow is supported by photons moving at
the speed of light in a cloud surrounding the wire.

Photons are the energy portions. Like the tons in sound.

Does it means that the electrons jump off from the end of the radiator?

Electrons are known to "jump off from the end of the radiator". It's called
corona and it is visible at night. Fortunately, it happens only under
special conditions because that energy is not coherently radiated, i.e. not
useful for anything except melting the ends of an antenna.

Before melting the end is lighting. Before shine it is hot. In the all
stadiums the electrons jump off (from transmitting antennas).

In Faraday time no such meters but Faraday had know that electrons
(nuclei)
jump off from the end of the open circuit.

Yes, arcing is a common occurrence. Unfortunately, nowadays it is useless
(and illegal) for RF communications. BTW, nuclei is plural for nucleus and
there are no electrons in the nucleus.

In Faraday time no nucleus. Now the Faradays nuclei have name electrons.
Maxwell name is "electric particles".
All of them are in space. The last names are "Dirac electron sea" and the
"rare plasma".
S*

All of this is pure, babbling, nonsense.

How many antennas have you built in your lifetime?

Why do you refuse to answer the question?

Is it because you have built zero antennas and you are trying to say all
the people that have successfully built hundreds that they are all wrong
and you don't want to admit you are an ignorant, inducable, idiot?

common mode current
 

common mode current
 

Szczepan Bialek wrote:

"Rob" napisa? w wiadomo?ci
...
Szczepan Bialek wrote:
In Faraday time no nucleus. Now the Faradays nuclei have name electrons.
Maxwell name is "electric particles".
All of them are in space. The last names are "Dirac electron sea" and the
"rare plasma".
S*

And today we have the Higgs bosons. How do they fit in?

The whole knowledge on waves are now the top secret.

Yeah, to you and to you alone.

All the rest of us know what is going on.

snip babbling nonsense


How many antennas have you built in your lifetime?

Why do you refuse to answer the question?

Is it because you have built zero antennas and you are trying to say all
the people that have successfully built hundreds that they are all wrong
and you don't want to admit you are an ignorant, inducable, idiot?

common mode current
 

Rob wrote:
wrote:
But you can order in NASA proper insulator.

NASA is not a store and you can not order anything from NASA, you babbling,
ignorant, ineducable, idiot.

I remember well that in the past the domain nasa.com was in use by
some mail order store. I don't know if that store still exists, it
seems difficult to find any details about it. The nasa.com domain
now appears to be in the hands of a cybersquatter.

(of course the domain for the National Aeronautics and Space Administration
is nasa.gov, but I doubt you can order insulators there)

As a general rule, US government agencies are forbidden by law from selling
"stuff" and particularly fobidden from selling anything commercially
available.

common mode current
 

wrote in message
...
Szczepan Bialek wrote:


But you can order in NASA proper insulator.

NASA is not a store and you can not order anything from NASA, you
babbling,
ignorant, ineducable, idiot.

Hello chaps.
Szczepan thinks that "NASA" is a store, like Radio Shack. He may be the sort
of person who thinks that the Bank Of England is an ordinary commercial bank
(I get spam purporting to be from the Bank Of England and asking me to
verify my account).
I also suspect that Szczepan is happy to sit at a keyboard, type some
nonsense and watch how we respond.
I'll happily help anyone who is willing to listen/read and learn but
Szczepan clearly is not capable of, or does not wish to learn. I could also
take his odd views as being indicative of someone "not quite with it". There
are other things which can be inferred ... but not on a public newsgroup.

73, Ian.

common mode current
 

common mode current
 

In message ,
writes
Szczepan Bialek wrote:





Simply same of you do not know that "dipole" is a radiator and counterpoise.

A dipole does NOT have a counterpoise.

As I keep saying, I'm convinced that Szczepan is thinking of a situation
where a dipole fed directly with coax. He may have seen diagrams which
show this, and they have become fixed in his mind.

Then, because the coax is (usually) grounded at the TX end, he believes
that the leg of the dipole, which is connected to the coax screen, is
also grounded - and therefore it serves the function of a counterpoise -
like you might use in a situation where the antenna is a directly-fed
end-fed wire situations, and it is not possible to get a good ground
connection.

In a way, Szczepan is sort of right. Consider the situation where a
dipole (no balun) is connected to the TX via essentially zero length
coax, and the TX chassis is not well grounded. [For example, possibly
there is a physical safety ground connection, but it is too long to be
effective at RF.] The 'ground' side of the of the dipole would indeed
function as a counterpoise, which might - or might not - radiate
effectively (depending on its height, its physical relationship relative
to the 'live' leg etc).

Now increase the length of the coax. At some stage, we would no longer
consider the 'ground' leg as a counterpoise, and think of it simply as
the other leg of the (directly connected) dipole.

However, while Szczepan may have a point if he is thinking of a
directly-connected dipole, he is obviously talking total nonsense if he
is referring to a dipole fed via a balun, or from a balanced tuner via
twin feeder. I fear that he is incapable of taking a rational, lateral
view of things, and therefore will continue to repeat his essentially
incorrect mantra.
--
Ian

common mode current
 

On 7/10/2012 4:27 PM, Ian wrote:
"Boomer" wrote in message
...
I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do do
I saw falling. Anyway, something was coming down from my antenna.

Michael

Hello Michael.

The do do has been extinct for centuries. Have I misunderstood your email?

73, Ian.



There was a bird on my antenna wire. I think he may have crapped about
the time I was looking. It was either that or a huge bunch of electrons
all fell off at once.

Michael

common mode current
 

"Boomer" wrote in message
...
On 7/10/2012 4:27 PM, Ian wrote:
"Boomer" wrote in message
...
I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do
I saw falling. Anyway, something was coming down from my antenna.

Michael

Hello Michael.

The do do has been extinct for centuries. Have I misunderstood your
email?

73, Ian.



There was a bird on my antenna wire. I think he may have crapped about the
time I was looking. It was either that or a huge bunch of electrons all
fell off at once.

Michael

I prefer to think of the do-do. Keeping birds off aerials could be a
rewarding topic. I think the pigeons that perch on my HF beam nibble at the
trap end caps. Not good news.

73 Ian.

common mode current
 

On 7/11/2012 12:33 PM, wrote:
Szczepan Bialek wrote:

U?ytkownik "Ian" napisa? w wiadomo?ci
...
"Szczepan Bialek" wrote in message
.. .

Your antennas are the diwire.
From the radiating wire the electrons jump off and penetrate into the
counterpoise wire.
It would be interesting to know if is any difference in behavior of the
different wires.
S*

Hello Szczepan.
"Diwire"? What's that?

In English the Ham dipole is the same as the two wires where one is
connected to the live conductor and the second to the bride.

There is no "Ham dipole", there are only dipoles.

There is no "live conductor" and there is no "bridge".

In Polish the Ham dipole consist of the radiator and counterpoise.

There is no "Ham dipole", there are only dipoles.

A dipole does not have a counterpoise.


So the correct name for such aerial is "diwire".

Pure babble.


"From the radiating wire the electrons jump off and penetrate into the
counterpoise wire."
Sounds like a rather short circuit. Not much chance of a QSO.

From Maxwell time all circuits are closed (displacemment current).
See at that: http://educypedia.karadimov.info/lib...entstehung.gif

This picture has nothing to do with what is being discussed.

The short circuit would be if the radiator and the counterpoise are close to
itself.

Pure babble.

They are in such cofiguration in the transmitting line.

Pure babble.

Have you QSO with the line alone?
S*

How many antennas have you built in your lifetime that you continue to argue
with and ignore people that have build hundreds of antennas?




Hey it is not all babble. I had my bride hold one end of my dipole once
for a quick check of SWR. It sounds as if I would get out a lot better
if I had her up there holding one end all the time. The bad news is that
she said she was not going to help me any more with climbing trees and
fastening my antennas. She has done this for me for 50 years and now
suddenly she gets cold feet at going up in a little 90 foot fir tree.
What they say is true, "nothing good lasts forever".

She helps with antenna construction but will not climb a tree. I don't
know if this is legal grounds for divorce in Michigan. If it is, I could
show her the statute and ask her again about that 90 foot tree I want
her to climb. She started climbing trees for my antennas when she was 11
years old. How could she stop now????

Michael

common mode current
 

"Boomer" wrote in message
...
Hey it is not all babble. I had my bride hold one end of my dipole once
for a quick check of SWR. It sounds as if I would get out a lot better if
I had her up there holding one end all the time. The bad news is that she
said she was not going to help me any more with climbing trees and
fastening my antennas. She has done this for me for 50 years and now
suddenly she gets cold feet at going up in a little 90 foot fir tree. What
they say is true, "nothing good lasts forever".

She helps with antenna construction but will not climb a tree. I don't
know if this is legal grounds for divorce in Michigan. If it is, I could
show her the statute and ask her again about that 90 foot tree I want her
to climb. She started climbing trees for my antennas when she was 11 years
old. How could she stop now????

Michael

Hello Michael. Over here, in the old country, we attach the wire to a
sapling and we wait. We're good at waiting. As the sapling grows we pay out
a little more wire. Eventually, we have our wire at the height we want.
Caution - if your bride offers to climb a tree for you, do not let her carry
anything heavy.
Stay away from the tree. Wear a hard hat. Tell her that your life insurance
does not pay out for injury or death due to falling objects (for falling
objects are due to gravity and that's an act of nature).

73, Ian.
ps. It has been unduly sunny over here to-day. The sun affects we Brits as
we don't see it very often. In fact, it's probably easier here in Britain to
see an electron shoot past than to see the sun.
73 agn.

common mode current
 

"Boomer" wrote in message
...
Hey it is not all babble. I had my bride hold one end of my dipole once
for a quick check of SWR. It sounds as if I would get out a lot better if
I had her up there holding one end all the time. The bad news is that she
said she was not going to help me any more with climbing trees and
fastening my antennas. She has done this for me for 50 years and now
suddenly she gets cold feet at going up in a little 90 foot fir tree. What
they say is true, "nothing good lasts forever".

She helps with antenna construction but will not climb a tree. I don't
know if this is legal grounds for divorce in Michigan. If it is, I could
show her the statute and ask her again about that 90 foot tree I want her
to climb. She started climbing trees for my antennas when she was 11 years
old. How could she stop now????

Michael

Hello Michael. Over here, in the old country, we attach the wire to a
sapling and we wait. We're good at waiting. As the sapling grows we pay out
a little more wire. Eventually, we have our wire at the height we want.
Caution - if your bride offers to climb a tree for you, do not let her carry
anything heavy. Stay away from the tree. Wear a hard hat. Tell her that your
life insurance
does not pay out for injury or death due to falling objects (for falling
objects are due to gravity and that's an act of nature).

73, Ian.
ps. It has been unduly sunny over here to-day. The sun affects we Brits as
we don't see it very often. In fact, it's probably easier here in Britain to
see an electron shoot past than to see the sun.
73 agn.

common mode current
 

On 7/11/2012 2:45 PM, Ian wrote:
"Boomer" wrote in message
...
On 7/10/2012 4:27 PM, Ian wrote:
"Boomer" wrote in message
...
I looked at my antenna the other day while I was talking. I saw some
jumping off. Szczepan has been right all along. Or maybe it was bird do
do
I saw falling. Anyway, something was coming down from my antenna.

Michael

Hello Michael.

The do do has been extinct for centuries. Have I misunderstood your
email?

73, Ian.



There was a bird on my antenna wire. I think he may have crapped about the
time I was looking. It was either that or a huge bunch of electrons all
fell off at once.

Michael

I prefer to think of the do-do. Keeping birds off aerials could be a
rewarding topic. I think the pigeons that perch on my HF beam nibble at the
trap end caps. Not good news.

73 Ian.



Ian, I am pretty advanced in years. I am 69. I can remember a comedian
whose name escapes me. He got paid good money for coming on stage and
talking just like Szczepan. I think it would be a gas for him to address
a large gathering of amateur radio operators. He could have us all in
stitches in a few seconds.

I get a fair amount of entertainment value just reading his posts. Some
of them are laugh out loud moments for me. I don't know whether his is
truly that ignorant or is just having fun with us. It doesn't matter. He
is funny.

BTW Szczepan, I have a loop antenna for low band. The electrons go
around in a circle and I recycle them. This saves a huge amount on my
electric bill.

Michael

Michael

common mode current
 

Rob wrote:
wrote:
Rob wrote:
wrote:
But you can order in NASA proper insulator.

NASA is not a store and you can not order anything from NASA, you babbling,
ignorant, ineducable, idiot.

I remember well that in the past the domain nasa.com was in use by
some mail order store. I don't know if that store still exists, it
seems difficult to find any details about it. The nasa.com domain
now appears to be in the hands of a cybersquatter.

(of course the domain for the National Aeronautics and Space Administration
is nasa.gov, but I doubt you can order insulators there)

As a general rule, US government agencies are forbidden by law from selling
"stuff" and particularly fobidden from selling anything commercially
available.

I call bull****. You can order lots of things at the National Aeronautics
and Space Administration. It is primarily promo material.

What part of "general rule" and "commercially available" do I need to
explain to you in minute detail?

How commercially available is promo material for NASA?

Can I get it at Walmart?

common mode current
 

"Boomer" wrote in message
...
Ian, I am pretty advanced in years. I am 69. I can remember a comedian
whose name escapes me. He got paid good money for coming on stage and
talking just like Szczepan. I think it would be a gas for him to address a
large gathering of amateur radio operators. He could have us all in
stitches in a few seconds.

I get a fair amount of entertainment value just reading his posts. Some of
them are laugh out loud moments for me. I don't know whether his is truly
that ignorant or is just having fun with us. It doesn't matter. He is
funny.

BTW Szczepan, I have a loop antenna for low band. The electrons go around
in a circle and I recycle them. This saves a huge amount on my electric
bill.

Michael

Michael

Hello Michael. From where I am sitting, 69 isn't all that old. I have
friends heading for 90 who are definitely not showing their age.
Was the comedian a Brit named Stanley Unwin or an American named Fred ???
73, Ian.

common mode current
 

Boomer wrote:

Hey it is not all babble. I had my bride hold one end of my dipole once
for a quick check of SWR. It sounds as if I would get out a lot better
if I had her up there holding one end all the time. The bad news is that
she said she was not going to help me any more with climbing trees and
fastening my antennas. She has done this for me for 50 years and now
suddenly she gets cold feet at going up in a little 90 foot fir tree.
What they say is true, "nothing good lasts forever".

She helps with antenna construction but will not climb a tree. I don't
know if this is legal grounds for divorce in Michigan. If it is, I could
show her the statute and ask her again about that 90 foot tree I want
her to climb. She started climbing trees for my antennas when she was 11
years old. How could she stop now????

Michael

I think you should be grateful for the free ride you got and leave it at that.

common mode current
 

Ian Jackson wrote:
In message ,
writes
Szczepan Bialek wrote:





Simply same of you do not know that "dipole" is a radiator and counterpoise.

A dipole does NOT have a counterpoise.

As I keep saying, I'm convinced that Szczepan is thinking of a situation
where a dipole fed directly with coax. He may have seen diagrams which
show this, and they have become fixed in his mind.

I think he is totally unable to understand that an antenna and a transmission
line are two different things.

Then, because the coax is (usually) grounded at the TX end, he believes
that the leg of the dipole, which is connected to the coax screen, is
also grounded - and therefore it serves the function of a counterpoise -
like you might use in a situation where the antenna is a directly-fed
end-fed wire situations, and it is not possible to get a good ground
connection.

In a way, Szczepan is sort of right. Consider the situation where a
dipole (no balun) is connected to the TX via essentially zero length
coax, and the TX chassis is not well grounded. [For example, possibly
there is a physical safety ground connection, but it is too long to be
effective at RF.] The 'ground' side of the of the dipole would indeed
function as a counterpoise, which might - or might not - radiate
effectively (depending on its height, its physical relationship relative
to the 'live' leg etc).

That does not change a dipole into anything other than a dipole.

Feeding an antenna with any transmission line ill suited for the antenna
will of course lead to unwanted currents which will radiate to some
degree.

However, the antenna is defined by the geometry of the antenna and the
transmission line does not change the radiation of the antenna unless
you are doing something really stupid like taping the transmission line
to one of the elements of the antenna, which changes the antenna
geometry.

Feeding an unbalanced load such as a ground plane with balanced line
will also lead to unwanted currents which will radiate to some degree,
but the ground plane antenna is still a ground plane antenna.

It appears to me that someone has been reading too many Wikipedia articles - especially the ones that I wrote a long time ago.
Not to mention too many old editions of S9 and CQ magazine.

In the mid 60's - we talked about Tower Lighting - where the energy emitted from the antenna was being asorbed and reflected and radiated by the tower - which technicially was being electrostatically charged.

This was also the reason why HY Gain came up with the little egg beater / colineariator on top of their vertical antenna's such as the Super Magnum 117..

I think someone forgot to give Sheldon his medications today and he has gotten a little out of hand and the other techo geeks on this forum decided to attack.

Would everyone please take a chill pill and just calm down and relax.

I'm sure you can display your Pedant knowledge to someone a little less bright then you, say maybe the check out girl at the grocery store or the guy that pumps your gasoline into your vehicle at the gas station.