http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=16722

I don't know why? But, I seem to remember you asking or something about
windom baluns ... or, maybe I just have to worry about being a maroon
idiot with an imagination!

Darn, I just hate that reference to "purplish" though ... purple is a
homosexual symbol here, at least in California, bad association yanno'?
.... straight face

Regards,
JS

On 6 sep, 04:05, John Smith wrote:
http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=16722

I don't know why? *But, I seem to remember you asking or something about
windom baluns ... or, maybe I just have to worry about being a maroon
idiot with an imagination!

Darn, I just hate that reference to "purplish" though ... purple is a
homosexual symbol here, at least in California, bad association yanno'?
... straight face

Regards,
JS

Hello John,

For me this is just a Guanella balun, 1:4 impedance transformation
with common mode suppression. I didn't do the math to see whether
common mode impedance is sufficient for OCF dipoles (to avoid feed
line radiation).

Regarding color use (purple/pink), that isn't limited to California
only.

Best regards,


Wim
PA3DJS
www.tetech.nl
without abc, PM will reach me very likely

On 9/6/2010 1:16 AM, Wimpie wrote:

...
Hello John,

For me this is just a Guanella balun, 1:4 impedance transformation
with common mode suppression. I didn't do the math to see whether
common mode impedance is sufficient for OCF dipoles (to avoid feed
line radiation).


At this point, I can't even remember why the reference of "balun to
windom to Cecil" holds a relationship in my mind ... I didn't pay any
attention to the core material/turns/etc. of the baluns which I posted
either ... just seeing if it related to what has stuck in my mind and
tossed it at Cecil to see.

Regarding color use (purple/pink), that isn't limited to California
only.


I had wondered about that! P*ssed me off when I had to give up wearing
purple ... I had always let the wife "wear the pink" in the family. lol

Best regards,


Wim
PA3DJS
www.tetech.nl
without abc, PM will reach me very likely

Regards,
JS

On Sep 5, 9:05*pm, John Smith wrote:
I don't know why? *But, I seem to remember you asking or something about
windom baluns ...

The one I remember was about the Carolina Windom 4:1 voltage balun at
the feedpoint and the 1:1 choke-isolator 20' down the coax. The
original Windom was fed, Marconi style, against ground.
--
73, Cecil, w5dxp.com

On 9/6/2010 5:08 AM, Cecil Moore wrote:

...
The one I remember was about the Carolina Windom 4:1 voltage balun at
the feedpoint and the 1:1 choke-isolator 20' down the coax. The
original Windom was fed, Marconi style, against ground.
--
73, Cecil, w5dxp.com

I have a "weird thing" about windoms ... I just don't trust an antenna
which "manipulates" RF on the feedline in "beneficial" ways and has a
religious cult following ... insane quirk of mine, really. lol Now I
don't have the room ... moved again.

If the wife had her way, we would move to Montana next to a favorite
sister and brother ... there we would have the room! lol

Regards,
JS

"John Smith" wrote in message
...
On 9/6/2010 5:08 AM, Cecil Moore wrote:

...
The one I remember was about the Carolina Windom 4:1 voltage balun at
the feedpoint and the 1:1 choke-isolator 20' down the coax. The
original Windom was fed, Marconi style, against ground.
--
73, Cecil, w5dxp.com

I have a "weird thing" about windoms ... I just don't trust an antenna
which "manipulates" RF on the feedline in "beneficial" ways and has a
religious cult following ... insane quirk of mine, really. lol Now I
don't have the room ... moved again.

If the wife had her way, we would move to Montana next to a favorite
sister and brother ... there we would have the room! lol

Regards,
JS

Just throwing in my comments on the so called Carolina Windom like Cecil
described.
I have one up like that and also an 80 meter dipole and triband beam up to
compare signals with.
Not all cases, but many times the Windom is as good or better than the other
antennas. The beam does beat the Windom by about double the microvolt
signals on the very long signal path.

The balun I am using is suppose to be able to handle the power I am running,
but around 1 kw to the antenna the 4:1 balun overheats after about 5 minuets
and the swr starts going up. There is some current coming down the feedline
as the choke balun 20 feet down the coax is getting warm. It does not do
that with about 1200 watts going into it while connected to a dummy load.


Like most any simple antenna, you throw RF at it and hope the signal goes in
a direction that lets you make contacts. The antenna can be set so that it
is most favorable in one or two directions, but when making contacts all
around, it is difficult to change the direction of the dipole.

On 6 sep, 14:30, John Smith wrote:
On 9/6/2010 5:08 AM, Cecil Moore wrote:

...
The one I remember was about the Carolina Windom 4:1 voltage balun at
the feedpoint and the 1:1 choke-isolator 20' down the coax. The
original Windom was fed, Marconi style, against ground.
--
73, Cecil, w5dxp.com

I have a "weird thing" about windoms ... I just don't trust an antenna
which "manipulates" RF on the feedline in "beneficial" ways and has a
religious cult following ... insane quirk of mine, really. lol *Now I
don't have the room ... moved again.

If the wife had her way, we would move to Montana next to a favorite
sister and brother ... there we would have the room! lol

Regards,
JS

Hello John,

When the feed line goes to a clean environment (for example a ground
provision far from the shack feed line radiation may not be a problem,
but it isn't my favorite. When the feed line goes directly to the
shack (and equipment), I don't want such an antenna.

When you are working NVIS on 75/80m, you don't want the vertical
component as this leads to radiation under low elevation, hence
stronger reception of ground based interference.

In case of DX, the vertical component may help you as this may result
in lower elevation of main lobe; over here we have much soil with
better then average conductivity. If I would like vertical
polarization, I prefer 100% of that, so no windom or OCF dipoles for
me.

Depending on the design, allowing vertically polarized radiation may
result in worse or better VSWR.

Regarding the color, many straight people wear it over here
(especially in summer days), so you can't judge on color only....

Regarding the balun/transformer, you need a very good one with OCF
dipoles as common mode voltage at feed point can be in the 300V range
with 100W input. just some pF stray capacitance in a transformer will
provoke feed line radiation.

Best regards,

Wim
PA3DJS
www.tetech.nl
without abc in the address, PM will reach me.

On 6 sep, 13:14, Wimpie wrote:
On 6 sep, 14:30, John Smith wrote:





On 9/6/2010 5:08 AM, Cecil Moore wrote:

...
The one I remember was about the Carolina Windom 4:1 voltage balun at
the feedpoint and the 1:1 choke-isolator 20' down the coax. The
original Windom was fed, Marconi style, against ground.
--
73, Cecil, w5dxp.com

I have a "weird thing" about windoms ... I just don't trust an antenna
which "manipulates" RF on the feedline in "beneficial" ways and has a
religious cult following ... insane quirk of mine, really. lol *Now I
don't have the room ... moved again.

If the wife had her way, we would move to Montana next to a favorite
sister and brother ... there we would have the room! lol

Regards,
JS

Hello John,

When the feed line goes to a clean environment (for example a ground
provision far from the shack feed line radiation may not be a problem,
but it isn't my favorite. *When the feed line goes directly to the
shack (and equipment), I don't want such an antenna.

When you are working NVIS on 75/80m, you don't want the vertical
component as this leads to radiation under low elevation, hence
stronger reception of ground based interference.

In case of DX, the vertical component may help you as this may result
in lower elevation of main lobe; over here we have much soil with
better then average conductivity. If I would like vertical
polarization, I prefer 100% of that, so no windom or OCF dipoles for
me.

Depending on the design, allowing vertically polarized radiation may
result in worse or better VSWR.

Regarding the color, many straight people wear it over here
(especially in summer days), so you can't judge on color only....

Regarding the balun/transformer, you need a very good one with OCF
dipoles as common mode voltage at feed point can be in the 300V range
with 100W input. just some pF *stray capacitance in a transformer will
provoke feed line radiation.

Best regards,

Wim
PA3DJSwww.tetech.nl
without abc in the address, PM will reach me.- Ocultar texto de la cita -

- Mostrar texto de la cita -

Hello boys, good day for you

Is it Carolina Windom a balanced load to justify the name "balun"? We
could think in a device to transform Z and another device to block
feed line current. What do you think about it?

Miguel

On 9/9/2010 7:26 AM, lu6etj wrote:

...
Hello boys, good day for you

Is it Carolina Windom a balanced load to justify the name "balun"? We
could think in a device to transform Z and another device to block
feed line current. What do you think about it?

Miguel

Yes, I see your point, and agree. I have never ran a windom or
experimented with it, so obviously, others are much more knowledgeable
with them. However, logic tells me they would be one easily justifiable
situation to use a voltage balun ... the CM currents being looked at
separately ... the balun must have a definite and pronounced effect on
pattern with this particular antenna.

Regards,
JS

On 9/9/2010 7:26 AM, lu6etj wrote:

Hello boys, good day for you

Is it Carolina Windom a balanced load to justify the name "balun"? We
could think in a device to transform Z and another device to block
feed line current. What do you think about it?

Miguel

Before beginning a discussion about what constitutes a balanced load and
what doesn't, how about answering these questions?

1. What is "balance"?
2. What defines a "balanced" feedline?
3. What are the properties of a "balanced" load?
4. How can you tell when a line, load, or transmitter is "balanced"?
5. What's the big deal about being "balanced", anyway?

And finally,

How does a balun achieve "balance"?

Roy Lewallen, W7EL