Uzytkownik "tom" napisal w wiadomosci
et...
On 2/8/2011 2:37 AM, Szczepan Bialek wrote:


Being ignorant is not so shameful as being unwilling to learn.

Yes and no. I am an ignorant but I am here to learn.

It seems to me that Faraday model fits to todays radio. Why not?
S*

You seem to be resisting learning from those who know much better than
you. I would suggest you stop resisting, start listening and begin
learning.

I hate to be pessimistic, but I doubt you will do even 1 of the 3
suggestions.

Asking questions is not resisting. Two years ago Richard C. wrote:

"Actually you have mixed up two different characteristics. Polarity
and polarization are NOT the same thing. With RF radiation, the wave
is constantly changing polarity (that is why the source of RF is
called alternating current), but within the "line of sight" of the
antenna, the polarization for a dipole is defined by its angle to the
earth as viewed by the observer.

If you see an horizontal dipole, it produces alternating polarities of
waves with horizontal polarization. If you see a vertical dipole, it
produces alternating polarities of waves with vertical polarization.

RF energy is ALWAYS changing polarity."

Can a monopole produce "polarisation"?
S*

On Thu, 10 Feb 2011 10:39:17 +0100, "Szczepan Bialek"
wrote:

Can a monopole produce "polarisation"?

PolariZation.

A vertical monopole is vertically polarized when viewed in isolation
of other reflectors at a distance of many, many wavelengths.

73's
Richard Clark, KB7QHC

On 10/02/2011 18:13, Richard Clark wrote:
On Thu, 10 Feb 2011 10:39:17 +0100, "Szczepan Bialek"
wrote:

Can a monopole produce "polarisation"?

PolariZation.

A vertical monopole is vertically polarized when viewed in isolation
of other reflectors at a distance of many, many wavelengths.

73's
Richard Clark, KB7QHC

"polarisation" is a perfectly acceptable spelling of the word (except
perhaps in the US).

Jeff

Uzytkownik "Richard Clark" napisal w wiadomosci
...
On Thu, 10 Feb 2011 10:39:17 +0100, "Szczepan Bialek"
wrote:

Can a monopole produce "polarisation"?

PolariZation.

A vertical monopole is vertically polarized when viewed in isolation
of other reflectors at a distance of many, many wavelengths.

To be polarized must be the two poles (nodes). Long wire antennas have many
nodes and the directional pattern.
Is it right?
S*

Hi everyone,

better be prudent when challenging a Polish on mathematical issues!

http://www.codesandciphers.org.uk/vi...oles/poles.htm

Tony I0JX
Rome, Italy

On Feb 11, 4:38*pm, "Antonio Vernucci" wrote:
Hi everyone,

better be prudent when challenging a Polish on mathematical issues!

http://www.codesandciphers.org.uk/vi...oles/poles.htm

Tony I0JX
Rome, Italy

somehow i don't think mr.b is in that class.

On Fri, 11 Feb 2011 09:33:34 +0100, "Szczepan Bialek"
wrote:

To be polarized must be the two poles (nodes)

The tip of a monopole and its base are its two nodes. A monopole is
polarized.

This is a very simple lesson to learn.

73's
Richard Clark, KB7QHC

On Feb 11, 8:04*pm, Richard Clark wrote:
On Fri, 11 Feb 2011 09:33:34 +0100, "Szczepan Bialek"

wrote:
To be polarized must be the two poles (nodes)

The tip of a monopole and its base are its two nodes. *A monopole is
polarized.

This is a very simple lesson to learn.

73's
Richard Clark, KB7QHC

but, but, but, the base is a voltage minimum, not the opposite peak
voltage of the top!!! how can that form two nodes to make the
electrons jump opposite directions? this just can't be true! this
must only be half polarity polarisation.

wrote:
To be polarized must be the two poles (nodes)

The tip of a monopole and its base are its two nodes. *A monopole is
polarized.

This is a very simple lesson to learn.

but, but, but, the base is a voltage minimum, not the opposite peak
voltage of the top!!! how can that form two nodes to make the
electrons jump opposite directions? this just can't be true! this
must only be half polarity polarisation.

What? Is this Oliver Twist in reverse polish notation?

"Please, sir, can I have another node?"

Yes, you have fully anticipated an objection in its juvenile form.
This can be countered (after asking for a hand to be held out for
switching):
Pick any potential reference point along the
length of the quarter wave monopole;
every point above it will have the opposite polarity
of any point below it - ergo, two nodes are described
each on either side of the reference.

I hope I don't have to explain that using batteries and resistors (it
may present a challenge in introducing advanced electronic concepts).

73's
Richard Clark, KB7QHC

Uzytkownik "K1TTT" napisal w wiadomosci
...
On Feb 11, 8:04 pm, Richard Clark wrote:
On Fri, 11 Feb 2011 09:33:34 +0100, "Szczepan Bialek"

wrote:
To be polarized must be the two poles (nodes)

The tip of a monopole and its base are its two nodes. A monopole is
polarized.

This is a very simple lesson to learn.


but, but, but, the base is a voltage minimum, not the opposite peak
voltage of the top!!! how can that form two nodes to make the
electrons jump opposite directions? this just can't be true! this
must only be half polarity polarisation.

Half polarity = no polarity.

The field emission take place where the voltage exists. But at the end the
voltage is doubled (standing wave). So the strong radiation is only from the
nodes.
S*