On 1/26/2014 11:12 AM, Jeff wrote:
On 26/01/2014 15:50, Jerry Stuckle wrote:
On 1/26/2014 5:09 AM, Jeff wrote:

Rubbish, they tell you nothing more than the impedance at the point
that you wish to plot it. They tell you nothing about how well an
antenna may, or may, not radiate. A 50 ohm resistor will be purely
resistive (parasitic elements neglected) but won't radiate well.
Also an
antenna does not have to resonant to radiate well or have high
efficiency.

Jeff

Keep thinking that, Jeff, while those who know how to use Smith Charts
continue to design antennas.

Your ignorance is underwhelming.


Well Jerry, please help me increase my knowledge. Please tell me now to
show what "goes on *inside* a bit of coax" on a Smith chart, or how to
show the efficiency of an antenna from a Smith chart.

Jeff

I'll tell you what, troll. You go to college. Get a EE degree. Learn
the math and the theory. Them maybe you can understand basics and we
can discuss the subject intelligently (although I doubt it).


Been there done that, and spend 30+ designing and specifying radio
equipment, and using Smith charts.


Yea, right.

I'll take it as a "no I can't" then. Which of course is true you can't
how what "goes on *inside* a bit of coax" on a Smith chart, or how to
show the efficiency of an antenna from a Smith chart.


Nope, I'm not even going to try to teach the pig to sing, especially in
a newsgroup. But trolls don't understand that.

Try reading Mr Smith's excellent book on his Smith Chart and you might
find out what it can and can't do!!!

Jeff

Try getting your EE degree along with the math, physics and electrical
theory. Then maybe we can discuss this intelligently.

--
==================
Remove the "x" from my email address
Jerry Stuckle

==================

On 1/27/2014 2:40 AM, Jeff wrote:
Jeff

Try getting your EE degree along with the math, physics and electrical
theory. Then maybe we can discuss this intelligently.


I am offering to discuss this intelligently by asking you to explain and
enlighten me as to how a Smith chart shows what "goes on inside a bit of
coax" on a Smith chart, or how to show the efficiency of an antenna from
a Smith chart, but you are the one coming back with (incorrect) personal
insults!!

Jeff

When you get the sufficient background in electronics, math and physics,
we can discuss this intelligently. Until then, it's like teaching a pig
to sing.

--
==================
Remove the "x" from my email address
Jerry Stuckle

==================

On 1/27/2014 12:31 PM, Jeff wrote:
On 27/01/2014 13:37, Jerry Stuckle wrote:
On 1/27/2014 2:40 AM, Jeff wrote:
Jeff

Try getting your EE degree along with the math, physics and electrical
theory. Then maybe we can discuss this intelligently.


I am offering to discuss this intelligently by asking you to explain and
enlighten me as to how a Smith chart shows what "goes on inside a bit of
coax" on a Smith chart, or how to show the efficiency of an antenna from
a Smith chart, but you are the one coming back with (incorrect) personal
insults!!

Jeff

When you get the sufficient background in electronics, math and physics,
we can discuss this intelligently. Until then, it's like teaching a pig
to sing.


You really are a very rude person.

Jeff

Oh, because I won't give you a the equivalent of a four-year degree for
free on usenet?

You really are a troll.

--
==================
Remove the "x" from my email address
Jerry, AI0K

==================

On 1/28/2014 2:38 AM, Jeff wrote:

When you get the sufficient background in electronics, math and
physics,
we can discuss this intelligently. Until then, it's like teaching a
pig
to sing.


You really are a very rude person.

Jeff

Oh, because I won't give you a the equivalent of a four-year degree for
free on usenet?

You really are a troll.


No, because when challenged to prove the assertions that you made you
evade answering by using rude personal remarks.

Jeff

Yes, because I'm not going to give you the equivalent of a four-year
degree for free on usenet.

You get sufficient background to discuss this intelligently and we can
continue, troll.

--
==================
Remove the "x" from my email address
Jerry Stuckle

==================

On 1/28/2014 11:26 AM, Jeff wrote:

No, because when challenged to prove the assertions that you made you
evade answering by using rude personal remarks.

Jeff

Yes, because I'm not going to give you the equivalent of a four-year
degree for free on usenet.

You get sufficient background to discuss this intelligently and we can
continue, troll.


No need for a degree course just simple explanations from you as to how
a Smith Chart can show the efficiency of an antenna, and how one can
show what goes on *inside* a piece of coax, which is what you maintained.

Bur of course you won't/can't so I will expect more rude comments from you.

Jeff

When you get the necessary background to understand how it works, then
we can discuss it intelligently.

But you even think a smith chart can't be used for antennas. So much
for your knowledge.

And also please point out exactly where I said a smith chart could be
used to show the efficiency of an antenna, or what goes on inside a
piece of coax. But you can't - trolls are good at twisting words and
coming up with unsubstantiated claims.

--
==================
Remove the "x" from my email address
Jerry Stuckle

==================

On 1/28/2014 2:25 PM, Jeff wrote:

Bur of course you won't/can't so I will expect more rude comments from
you.

Jeff

When you get the necessary background to understand how it works, then
we can discuss it intelligently.

But you even think a smith chart can't be used for antennas. So much
for your knowledge.

And also please point out exactly where I said a smith chart could be
used to show the efficiency of an antenna, or what goes on inside a
piece of coax. But you can't - trolls are good at twisting words and
coming up with unsubstantiated claims.


AS I expected more rude personal comments and no real response. It would
appear that anyone who disagrees with you is a troll. I think that you
have show yourself for what you are in this and other threads, and are
incapable of rational discussion. It is you who are the troll. I have
nothing more to say as you do not wish to justify your arguments.

Jeff

If you understood ANYTHING about Smith Charts, you would understand they
are the graphical representation of the results of mathematical
forumulae. And you obviously don't have the background to understand
the math, so any intelligent discussion is not possible.

And just like a troll, you don't respond to my comments. They were REAL
responses - but ones you can't answer.

--
==================
Remove the "x" from my email address
Jerry, AI0K

==================

Jerry Stuckle wrote:
On 1/28/2014 2:25 PM, Jeff wrote:

Bur of course you won't/can't so I will expect more rude comments from
you.

Jeff

When you get the necessary background to understand how it works, then
we can discuss it intelligently.

But you even think a smith chart can't be used for antennas. So much
for your knowledge.

And also please point out exactly where I said a smith chart could be
used to show the efficiency of an antenna, or what goes on inside a
piece of coax. But you can't - trolls are good at twisting words and
coming up with unsubstantiated claims.


AS I expected more rude personal comments and no real response. It would
appear that anyone who disagrees with you is a troll. I think that you
have show yourself for what you are in this and other threads, and are
incapable of rational discussion. It is you who are the troll. I have
nothing more to say as you do not wish to justify your arguments.

Jeff

If you understood ANYTHING about Smith Charts, you would understand they
are the graphical representation of the results of mathematical
forumulae. And you obviously don't have the background to understand
the math, so any intelligent discussion is not possible.

Not quite; a Smith chart is a nomgraph of complex impedance usually
noralized to one.

The data could come from "mathematical forumulae" but usually comes
from measured data in which case the "mathematical forumulae" amounts
to normalizing the impedance to one.

From a Smith chart, one can obtain impedances, admittances, reflection
coefficients, scattering parameters, noise figure circles, constant gain
contours and regions for unconditional stability.



--
Jim Pennino