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-   -   Dipole-2 different wire sizes? (https://www.radiobanter.com/antenna/186570-dipole-2-different-wire-sizes.html)

tom July 6th 12 02:18 AM

Dipole-2 different wire sizes?
 
On 7/5/2012 11:39 AM, Szczepan Bialek wrote:

So: " It means that a dipole fed from a coax is the monopole (a quarter
wave) with the counterpoise." is right.
Do you agree?
S*


No.

tom
K0TAR

tom July 6th 12 02:20 AM

Dipole-2 different wire sizes?
 
On 7/5/2012 11:53 AM, Szczepan Bialek wrote:
The number of buried radials or that above ground (counterpoise) is power
dependent.
S*


Most perfectly incorrect. The power level has no relation whatsoever.

The number of radials is related to the efficiency.

tom
K0TAR

Szczepan Bialek July 6th 12 09:46 AM

Dipole-2 different wire sizes?
 

"tom" napisal w wiadomosci
. net...
On 7/4/2012 11:15 AM, Szczepan Bialek wrote:

Joel dipole has the two legs.
One of them is the antenna and the second the counterpoise.


Tell us which is which. Without your usual nonsense.


The red one: http://en.wikipedia.org/wiki/File:Dipolefeedrad.png

I know I'm asking the impossible here, but maybe just this once you could
answer a question clearly and directly.


I assume that Joel dipole is feed with a coax. Because: "Many people have
had success in feeding a dipole directly with a coaxial cable feed rather
than a ladder-line. "

Is it the Joel case?

Do you agree that such "dipole" is the monopole?
S*




Szczepan Bialek July 6th 12 09:52 AM

Dipole-2 different wire sizes?
 

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


Those that are connected with coax usually have device between the coax
and the dipole to convert from unbalance to balanced.


But the only one leg is red:
http://en.wikipedia.org/wiki/File:Di...ebandbalun.png

Again you show you know nothing about antennas or the real world.


I am here to learn.
S*



Ian[_5_] July 6th 12 09:56 AM

Dipole-2 different wire sizes?
 
"Szczepan Bialek" wrote in message
...


The red one: http://en.wikipedia.org/wiki/File:Dipolefeedrad.png

I know I'm asking the impossible here, but maybe just this once you could
answer a question clearly and directly.


I assume that Joel dipole is feed with a coax. Because: "Many people have
had success in feeding a dipole directly with a coaxial cable feed rather
than a ladder-line. "

Is it the Joel case?

Do you agree that such "dipole" is the monopole?
S*


Good morning Szczepan . Dipoles and monopoles are two different aerials. If
you do not understand the difference then you need to try harder to
understand what you are being told rather than disregarding it.

Regards, Ian.



Szczepan Bialek July 6th 12 09:58 AM

Dipole-2 different wire sizes?
 

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

So you think the electron emission from your transmitter antenna is
something not in the textbooks but still happening in reality?


In reality the electrons escape from all charged bodies.

Because a dipole does not need a ground, it is a symmetric antenna which
is not driven relative to ground.


Do you mean the antenna with the two legs where the one leg is connected
to
the shield of a coax?


That is not a correct way to feed a dipole!
There must be a balun between the coax and the dipole.


The balun only improve the monopole . The only one leg is red (radiate):
http://en.wikipedia.org/wiki/File:Di...ebandbalun.png
S*



Ian[_5_] July 6th 12 10:11 AM

Dipole-2 different wire sizes?
 
"Szczepan Bialek" wrote in message
...


The balun only improve the monopole . The only one leg is red (radiate):
http://en.wikipedia.org/wiki/File:Di...ebandbalun.png
S*

Good morning again Szczepan. The caption to that diagram is "Coax and
antenna both acting as radiators instead of only the antenna."
Note carefully - coax AND antenna BOTH acting as radiators. Directly below
that illustration is another one showing the usual operation of a dipole.

Regards, Ian.



Rob[_8_] July 6th 12 10:35 AM

Dipole-2 different wire sizes?
 
Szczepan Bialek wrote:

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

So you think the electron emission from your transmitter antenna is
something not in the textbooks but still happening in reality?


In reality the electrons escape from all charged bodies.


So you do know that it is not related to transmitting a signal, after all?

Because a dipole does not need a ground, it is a symmetric antenna which
is not driven relative to ground.

Do you mean the antenna with the two legs where the one leg is connected
to
the shield of a coax?


That is not a correct way to feed a dipole!
There must be a balun between the coax and the dipole.


The balun only improve the monopole . The only one leg is red (radiate):
http://en.wikipedia.org/wiki/File:Di...ebandbalun.png
S*


The color someone used in an illustrative diagram has no significance
in the operation of the antenna.

Both the halves of the dipole are involved in the radiation.

[email protected] July 6th 12 05:57 PM

Dipole-2 different wire sizes?
 
Szczepan Bialek wrote:

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

So you think the electron emission from your transmitter antenna is
something not in the textbooks but still happening in reality?


In reality the electrons escape from all charged bodies.

Because a dipole does not need a ground, it is a symmetric antenna which
is not driven relative to ground.

Do you mean the antenna with the two legs where the one leg is connected
to
the shield of a coax?


That is not a correct way to feed a dipole!
There must be a balun between the coax and the dipole.


The balun only improve the monopole . The only one leg is red (radiate):
http://en.wikipedia.org/wiki/File:Di...ebandbalun.png
S*


Once again you totally fail to understand your own link.

BOTH elements radiate equally as shown by theory and by measurement.

You are a babbling idiot.




[email protected] July 6th 12 06:06 PM

Dipole-2 different wire sizes?
 
Szczepan Bialek wrote:

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


Those that are connected with coax usually have device between the coax
and the dipole to convert from unbalance to balanced.


But the only one leg is red:


Which means nothing by taking the image out of context.

If you were to read http://en.wikipedia.org/wiki/Dipole_antenna and actually
understand what it says, you would then understand why one side is shown as
red and one side is shown as blue.

You would also learn that BOTH sides are radiating equally.

http://en.wikipedia.org/wiki/File:Di...ebandbalun.png


Again you show you know nothing about antennas, the real world or the
links you post.

I am here to learn.
S*


An outright lie.

If you were here to learn, you would not be arguing with people who have
spent decades building and using antennas in the real world, people ranging
in education from knowledgable hobbyiests to degreed engineers and scientists.





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