Hal

It surprises me to read that you consider the Smith Chart difficult to
use. I'd bet that you could figure out how to use one to your benefit
within 20 minutes of asking questions of someone who uses them.

Jerry

Jerry,
You're probably right. I could probably lean how in an afternoon.
I sat down with one I printed out once, and thought I had it figured out.
Then when I needed to use it again, I would need to be retrained.
I remember how to use an MFJ259 from use to use, though. :-)

I just don't have the patience - it just doesn't grab my attention like a
gizmo does.

Hal:

I too am lazy... I think we found one thing we agree on... a beer in a
hammock with a programmable calculator is to be preferred to a table,
straightedge and smith chart... besides, I scribble on 'em.... frown

Warmest regards,
John

"Hal Rosser" wrote in message
news
Hal

It surprises me to read that you consider the Smith Chart difficult
to
use. I'd bet that you could figure out how to use one to your
benefit
within 20 minutes of asking questions of someone who uses them.

Jerry

Jerry,
You're probably right. I could probably lean how in an afternoon.
I sat down with one I printed out once, and thought I had it figured
out.
Then when I needed to use it again, I would need to be retrained.
I remember how to use an MFJ259 from use to use, though. :-)

I just don't have the patience - it just doesn't grab my attention
like a
gizmo does.

"John Smith" wrote in message
...
Hal:

I too am lazy... I think we found one thing we agree on... a beer in a
hammock with a programmable calculator is to be preferred to a table,
straightedge and smith chart... besides, I scribble on 'em.... frown

Warmest regards,
John

Scribbble on 'em??
That implies you have occasionally used the old-fashioned "pencil".
Lets narrow it down to the beer and hammock for now. ;-)
not partial to calculators, phones, or loud music.

I should point out, everyone should at least know about a smith and have
used it... kinda gives you a "feel" for the way all the variables work
together... it is a good thing...

Warmest regards,
John

"John Smith" wrote in message
...
Hal:

I too am lazy... I think we found one thing we agree on... a beer in
a hammock with a programmable calculator is to be preferred to a
table, straightedge and smith chart... besides, I scribble on 'em....
frown

Warmest regards,
John

"Hal Rosser" wrote in message
news
Hal

It surprises me to read that you consider the Smith Chart
difficult to
use. I'd bet that you could figure out how to use one to your
benefit
within 20 minutes of asking questions of someone who uses them.

Jerry

Jerry,
You're probably right. I could probably lean how in an afternoon.
I sat down with one I printed out once, and thought I had it figured
out.
Then when I needed to use it again, I would need to be retrained.
I remember how to use an MFJ259 from use to use, though. :-)

I just don't have the patience - it just doesn't grab my attention
like a
gizmo does.

I agree - like I said - I have nothing but respect for those who figure them
out.

Hal:

Ok, but that was not pointed towards you... just a general, "Aye!" for
the smith chart... I can't imagine every ham without one on the wall
they just look kewl too, with the world map--and I am quite serious
about that... ... many visitors to a station appreciate it if you
generate a bit of atmosphere for 'em.... nod-and-a-wink

Regards,
John

"Hal Rosser" wrote in message
.. .
I agree - like I said - I have nothing but respect for those who figure
them
out.

John Smith wrote:
I should point out, everyone should at least know about a smith and have
used it... kinda gives you a "feel" for the way all the variables work
together... it is a good thing...

For me, the biggest advantage of the Smith Chart is that I can
carry it around in my head. It is a graphical math model of
a transmission line. A picture is worth a thousand calculators.
--
73, Cecil http://www.qsl.net/w5dxp

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Cecil:

I wasn't being cynical, and although I cannot "carry it in my head", it
is good for the example chart, I agree, a picture is worth a thousand
words--I was not poking fun... but hey, it does look kewl.... I am not
above cheap tricks to impress my company... perhaps I admit my failing
here to be poked fun at--but the first time I seen one--was pretty damn
impressed!!! (still am actually)

Warmest regards,
John

"Cecil Moore" wrote in message
...
John Smith wrote:
I should point out, everyone should at least know about a smith and
have used it... kinda gives you a "feel" for the way all the
variables work together... it is a good thing...

For me, the biggest advantage of the Smith Chart is that I can
carry it around in my head. It is a graphical math model of
a transmission line. A picture is worth a thousand calculators.
--
73, Cecil http://www.qsl.net/w5dxp

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120,000+ Newsgroups
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On Wed, 01 Jun 2005 23:20:15 -0500, Cecil Moore
wrote:

John Smith wrote:
I should point out, everyone should at least know about a smith and have
used it... kinda gives you a "feel" for the way all the variables work
together... it is a good thing...

For me, the biggest advantage of the Smith Chart is that I can
carry it around in my head. It is a graphical math model of
a transmission line. A picture is worth a thousand calculators.

Old sayings:

A picture is worth a thousand words.

A word is worth a thousand pictures ... if it's the right word.

"Hal Rosser" wrote in message
news
Hal

It surprises me to read that you consider the Smith Chart difficult to
use. I'd bet that you could figure out how to use one to your benefit
within 20 minutes of asking questions of someone who uses them.

Jerry

Jerry,
You're probably right. I could probably lean how in an afternoon.
I sat down with one I printed out once, and thought I had it figured out.
Then when I needed to use it again, I would need to be retrained.
I remember how to use an MFJ259 from use to use, though. :-)

I just don't have the patience - it just doesn't grab my attention like a
gizmo does.


Hal

First off -- I realize that you are eperienced enough with antenna
analysis to know what is needed for matching them. And, if you did want to
use a Smith Chart, you'd have done it by now. I wont embarrass myself by
telling you anything I know about them. But, they sure can help identify
what kind of impedance is needed for a matching network.
Any impedance with a real resistive value can be plotted on the chart.
Then, its location immediately identifies what reactance will move the
unmatched impedance toward a matched location. I think you already knew
that. I also think you could teach me how to look at matching devices from
a more practical perspective.

Jerry