Szczepan Bialek wrote:

"W5DXP" napisal w wiadomosci
...
On Friday, April 26, 2013 10:52:18 AM UTC-5, Szczepan Bialek wrote:
The dipole with grounded one leg is quite different from the "symmetrical
dipole".

According to the official IEEE definition of a "dipole", it is any antenna
with approximately the same radiation pattern as a dipole.

Of course: "Dipoles have a radiation pattern, shaped like a toroid
(doughnut) symmetrical about the axis of the dipole. The radiation is
maximum at right angles to the dipole, dropping off to zero on the antenna's
axis. The theoretical maximum gain of a Hertzian dipole is 10 log 1.5 or
1.76 dBi. The maximum theoretical gain of a ?/2-dipole is 10 log 1.64 or
2.15 dBi."

True.

The antenna like this:
http://en.wikipedia.org/wiki/File:Di..._in_meters.png

". However, coax is not symmetrical and thus not a balanced feeder. It is
unbalanced because the outer shield is connected to earth potential at the
other end. When a balanced antenna such as a dipole is fed with an
unbalanced feeder, common mode currents can cause the coax line to radiate
in addition to the antenna itself,[5] and the radiation pattern may be
asymmetrically distorted"

True to a point.

The outer shield may or may not be connected to earth potenial anywhere.

Such antenna is MECHANICALY symmetrical.
But electrically is rather like the Marconi monopole:
http://en.wikipedia.org/wiki/File:A6-3EN.jpg

Confused babble.

The antenna is the antenna and the feedline is the feedline.

Whether or not the feedline radiates is totally irrelevant to what the
antenna does.

This is something you are totally incapable of understanding.

Remember: The grounded leg is the radial.

Remeber: This is puerile, ignorant, nonsense.



--
Jim Pennino

Szczepan Bialek wrote:

"Irv Finkleman" napisa? w wiadomo?ci
...
Yes -- I must admit now that I look forward to his
inputs which are amusing if nothing else.
Entertainment -- YES! Information -- NOT!.

Your opinion is about Wiki: My inputs are From:
http://en.wikipedia.org/wiki/Dipole_antenna
S*

Your quotes are from Wiki.

Your interpretation of the quotes is from a very damaged brain.



--
Jim Pennino

Szczepan Bialek wrote:

Each radial, grounded or not (but connected to the shield of the coax), is
the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

All gibberish, as usual.

Monopole is not directional.

Wrong; a monopole can be directional, all you have to to is tilt it slightly.



--
Jim Pennino

"Szczepan Bialek" wrote in message
.. .


Uzytkownik "Wayne" napisal w wiadomosci
...


wrote in message
...

On Friday, April 26, 2013 12:38:06 PM UTC-5, Irv Finkleman wrote:
snip

Maybe SB can explain the difference between a monopole with a single
ungrounded radial, and a dipole.

Each radial, grounded or not (but connected to the shield of the coax), is
the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

What if the single ungrounded quarter wave radial is in line with the
quarter wave radiator?
Is it still a monopole?

Monopole is not directional.

Does this assume the monopole is vertical?
What if it is horizontal? Is it still non-directional?

Dipole is directional.
S*

"Wayne" napisal w wiadomosci
...


"Szczepan Bialek" wrote in message
.. .


Uzytkownik "Wayne" napisal w wiadomosci
...


wrote in message
...

On Friday, April 26, 2013 12:38:06 PM UTC-5, Irv Finkleman wrote:
snip

Maybe SB can explain the difference between a monopole with a single
ungrounded radial, and a dipole.

Each radial, grounded or not (but connected to the shield of the coax), is
the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

What if the single ungrounded quarter wave radial is in line with the
quarter wave radiator?
Is it still a monopole?

Of course.

Monopole is not directional.

Does this assume the monopole is vertical?

In the space no the directions.
The monopole radiate from the end part of the wire. So the one mast is
enough.
But you can make the two masts.

What if it is horizontal? Is it still non-directional?

Of course.
To have the directional antenna you must have the antenna array:
"An antenna array is a group of radiators whose currents are of different
amplitudes and phases. They use electromagnetic wave interference phenomena
to enhance the radiative signal in the desired direction and diminish it in
the non-desired direction". From:
http://en.wikipedia.org/wiki/Antenna...lectromagnetic)

The electrically symmetrical dipole is the antenna array.
The whip antenna is always non-directional. But in mountains it work better
if it is horizontal.

Each antenna made of wire radiate from the end piece of the wire. So the
wertical radiate in the all direction but tangent to the Earht surface.
The horizontal radiate in direction of ionsphere. It is usefull in moutains.

The directional antenna has the lobes.
The monopole antenna shorter than 1/4 wave has no lobes.
But a long wire antenna have lobes. There are the many "poles" (nodes) and
the interference take place.
S*

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

Each radial, grounded or not (but connected to the shield of the coax),
is
the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

All gibberish, as usual.

Monopole is not directional.

Wrong; a monopole can be directional, all you have to do is tilt it
slightly.

Read my answer for Wayne.
S*

Szczepan Bialek wrote:

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

Each radial, grounded or not (but connected to the shield of the coax),
is
the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

All gibberish, as usual.

Monopole is not directional.

Wrong; a monopole can be directional, all you have to do is tilt it
slightly.

Read my answer for Wayne.

All of your "answers" are ignorant babble.



--
Jim Pennino

Szczepan Bialek wrote:

In the space no the directions.
The monopole radiate from the end part of the wire. So the one mast is
enough.
But you can make the two masts.

Pure gibberish.

To have the directional antenna you must have the antenna array:
"An antenna array is a group of radiators whose currents are of different
amplitudes and phases. They use electromagnetic wave interference phenomena
to enhance the radiative signal in the desired direction and diminish it in
the non-desired direction". From:
http://en.wikipedia.org/wiki/Antenna...lectromagnetic)

Wiki may be correct, but your interpretation is nonsense.

The electrically symmetrical dipole is the antenna array.

A dipole is a dipole and is not concidered an array by anyone but you.

The whip antenna is always non-directional. But in mountains it work better
if it is horizontal.

Wrong and wrong.

Each antenna made of wire radiate from the end piece of the wire. So the
wertical radiate in the all direction but tangent to the Earht surface.
The horizontal radiate in direction of ionsphere. It is usefull in moutains.

Gibberish.

The directional antenna has the lobes.
The monopole antenna shorter than 1/4 wave has no lobes.

Wrong.

You are still a babbling idiot.


--
Jim Pennino

"Szczepan Bialek" wrote in message
...


"Wayne" napisal w wiadomosci
...


"Szczepan Bialek" wrote in message
.. .


Uzytkownik "Wayne" napisal w wiadomosci
...


wrote in message
...

On Friday, April 26, 2013 12:38:06 PM UTC-5, Irv Finkleman wrote:
snip

Maybe SB can explain the difference between a monopole with a single
ungrounded radial, and a dipole.

Each radial, grounded or not (but connected to the shield of the coax), is
the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

What if the single ungrounded quarter wave radial is in line with the
quarter wave radiator?
Is it still a monopole?

# Of course.

Wow...you gave a lot to digest.

Just to understand the discussion, let's address the monopole with one
radial.

Assuming the monopole is 1/4 wave long, and has a 1/4 wave long radial.
The radial is in line with the monopole. Everything is ungrounded.

How does that configuration of a monopole with one radial differ from a
dipole?

"Wayne" napisal w wiadomosci
...


"Szczepan Bialek" wrote in message
...


On Friday, April 26, 2013 12:38:06 PM UTC-5, Irv Finkleman wrote:
snip

Maybe SB can explain the difference between a monopole with a single
ungrounded radial, and a dipole.

Each radial, grounded or not (but connected to the shield of the coax),
is the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

What if the single ungrounded quarter wave radial is in line with the
quarter wave radiator?
Is it still a monopole?

# Of course.

Wow...you gave a lot to digest.

Just to understand the discussion, let's address the monopole with one
radial.

Assuming the monopole is 1/4 wave long, and has a 1/4 wave long radial.
The radial is in line with the monopole. Everything is ungrounded.

The radial connected with the shield of the coax is the ground.

How does that configuration of a monopole with one radial differ from a
dipole?

The first dipole was the Hertz dipole. The both legs were fed with the same
frequency but not in phase. The both ends radiate with the same intensity.
The Marconi antenna has only one radiated leg. It is almost in the free
space (masts are high).

The horizontal dipole radiate in one horizontal direction only. The vertical
in all horizontal directions. But the mast must be very high.
The horizontal, vertical or tilted monopole radiate in all directions. Your
cell phone has the monopole.
S*