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Old May 5th 09, 03:40 AM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

"dave" wrote

A BalUn would help a lot.


For what? If the antenna system is balanced (as are dipoles, inherently), I
seriously doubt a balun would be good for anything.


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Old May 5th 09, 04:06 AM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Howard Lester wrote:
"dave" wrote

A BalUn would help a lot.


For what? If the antenna system is balanced (as are dipoles, inherently), I
seriously doubt a balun would be good for anything.



He's feeding it with coax, so it's not just a good idea, it's required.

The antenna is balanced, the feedline is not. He stated the feedline is
RG-8X.

tom
K0TAR
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Old May 5th 09, 02:00 PM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

"Tom Ring" wrote

He's feeding it with coax, so it's not just a good idea, it's required.

The antenna is balanced, the feedline is not. He stated the feedline is
RG-8X.


I know that, and just because it's balanced to unbalanced, it's not
*required.* The antenna system can work just fine without one. In some
cases, at least according to the late Lew McCoy, it can do more harm than
good. If the antenna system is inherently unbalanced due to one leg being,
say, in greater proximity to metal and other objects, then I would consider
using some kind of balun or choke system.


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Old May 5th 09, 03:06 PM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Howard Lester wrote:
"Tom Ring" wrote

He's feeding it with coax, so it's not just a good idea, it's required.

The antenna is balanced, the feedline is not. He stated the feedline is
RG-8X.


I know that, and just because it's balanced to unbalanced, it's not
*required.* The antenna system can work just fine without one. In some
cases, at least according to the late Lew McCoy, it can do more harm than
good. If the antenna system is inherently unbalanced due to one leg being,
say, in greater proximity to metal and other objects, then I would consider
using some kind of balun or choke system.



http://www.bunkerofdoom.com/lit/bal_...baltransys.pdf
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Old May 6th 09, 03:29 AM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Howard Lester wrote:
"Tom Ring" wrote

He's feeding it with coax, so it's not just a good idea, it's required.

The antenna is balanced, the feedline is not. He stated the feedline is
RG-8X.


I know that, and just because it's balanced to unbalanced, it's not
*required.* The antenna system can work just fine without one. In some
cases, at least according to the late Lew McCoy, it can do more harm than
good. If the antenna system is inherently unbalanced due to one leg being,
say, in greater proximity to metal and other objects, then I would consider
using some kind of balun or choke system.



Well, I'm not going to argue with someone who thinks that placing a
balun between an unbalanced feed and a balanced load could ever possibly
do more harm than good.

It would be a utter waste of time.

tom
K0TAR


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Old May 6th 09, 04:53 AM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Some of the participants here might find
http://eznec.com/Amateur/Articles/Baluns.pdf interesting.

Roy Lewallen, W7EL
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Old May 6th 09, 01:10 PM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Roy Lewallen wrote:
Some of the participants here might find
http://eznec.com/Amateur/Articles/Baluns.pdf interesting.

Roy Lewallen, W7EL


Thanks Roy. Read it a while ago, but good to get a refresher.

tom
K0TAR
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Old May 6th 09, 08:09 AM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Tom Ring wrote:

Well, I'm not going to argue with someone who thinks that placing a
balun between an unbalanced feed and a balanced load could ever possibly
do more harm than good.


That's because you are calling it a dipole and assuming it is a balanced
antenna. In reality, it's a quarter wave sideways vertical wire antenna, with
a single quarter wave radial at the feed point.

See, now it all makes sense. :-)

Or a quarter wave end fed horizontal antenna with a single tuned feed
point radial.

Not only that, I wonder if I can patent them, and sell them via a web site
for big bucks.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
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Old May 6th 09, 01:16 PM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Geoffrey S. Mendelson wrote:

That's because you are calling it a dipole and assuming it is a balanced
antenna. In reality, it's a quarter wave sideways vertical wire antenna, with
a single quarter wave radial at the feed point.

See, now it all makes sense. :-)

Or a quarter wave end fed horizontal antenna with a single tuned feed
point radial.

Not only that, I wonder if I can patent them, and sell them via a web site
for big bucks.

Geoff.


You need to have a chat with Billy Mays. If he hasn't made it to
networks in that part of the world, you're lucky.

HI I'M BILLY MAYS FOR THE HYPER-Q ANTENNA!!!!

THIS PATENTED DESIGN OUTPERFORMS EVEN A DIPOLE!!!! ....
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Old May 6th 09, 03:54 AM posted to rec.radio.amateur.antenna
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Howard Lester wrote:
"Tom Ring" wrote

He's feeding it with coax, so it's not just a good idea, it's required.

The antenna is balanced, the feedline is not. He stated the feedline is
RG-8X.


I know that, and just because it's balanced to unbalanced, it's not
*required.* The antenna system can work just fine without one. In some
cases, at least according to the late Lew McCoy, it can do more harm than
good. If the antenna system is inherently unbalanced due to one leg being,
say, in greater proximity to metal and other objects, then I would consider
using some kind of balun or choke system.



Sorry, I forgot to add

PLONK!

tom
K0TAR


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