Dave Shrader wrote:
My first Novice 80 CW antenna was a true Windom. W1GID, Ralph Tedford,
one of my early Elmers, installed it for me. I ran an ARC 5 transmitter
into it. Funny thing though, I kept getting tingling sensations off the
key until I lengthened the feed line about 25 feet :-)

I also ran an ARC 5 into an OCF when I was in college. Used 300 ohm
twinlead and a Heathkit air-core balun. Worked well enough for WAS-2.

Deacon Dave, W1MCE for 50 years
--
73, Cecil, W5DXP for longer than that. :-)




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Cecil Moore wrote:

SNIP

I also ran an ARC 5 into an OCF when I was in college. Used 300 ohm
twinlead and a Heathkit air-core balun. Worked well enough for WAS-2.

SNIP

--
73, Cecil, W5DXP for longer than that. :-)


I threw away a B&W 250 watt air-core balun, 4:1 or 1:1 selectable, when
we changed QTH from Massachusetts to NH.

Wish I had kept it!!

Cecil, I know we are close in age and close in our university careers.
When were you licensed? My W1MCE is first re-issue in the mid 1950s and
predates the 'K' series of calls by a year or more.

Deacon Dave

Cecil Moore wrote:

Dave Shrader wrote:

I believe that today's "Windoms" are not true Windoms!!


My 1956 ARRL Handbook says that a Windom is fed with a
single vertical wire. If an antenna with Windom dimensions
is fed with a transmission line rather than a single vertical
wire, in the 1956 ARRL Handbook, it is called an "Off Center
Fed" dipole.

Does the OCF dipole feedline radiate by design?

- Mike KB3EIA -

Mike Coslo wrote:
Does the OCF dipole feedline radiate by design?

The Windom single-wire feedline radiates by design.
It would be extremely difficult to keep the OCF
feedline from radiating but a 50:300 current balun
at the feedpoint might help.
--
73, Cecil, W5DXP



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In article ,
Cecil Moore wrote:

Mike Coslo wrote:
Does the OCF dipole feedline radiate by design?

The Windom single-wire feedline radiates by design.
It would be extremely difficult to keep the OCF
feedline from radiating but a 50:300 current balun
at the feedpoint might help.

Here's a relatively simple way to keep an off-center fed "Windom"
antenna feedline from radiating: Install another Windom antenna of
identical dimensions at an acute or right angle to the existing one. Tie
the long side of the second Windom to the short side of the first one,
and vice versa. Feed the thing with a balanced line, or with coax
through a balun. I don't have EZNEC (it won't run on Macs) so I don't
know what the pattern would be like, but if everything was symmetrical
the feedline ought not radiate.

David, ex W8EZE

--
David Ryeburn

To send e-mail, use "ca" instead of "caz".

Hello,

I use a home made (low $$$) OCFD type antenna for 80-10m + WARC of the
Fritzel FD4 2kW version's length; fed with 300 Ohms twin lead and a 1/6
current balun out of the shack. It needs only minimal AT tuning for 20m and
the WARC bands, 15m is no problem due to a second shorter OCFD cut for 21
MHz at a common feed point.

For 160-10m operation a 2X20m Levy antenna with Levy tuner and 15-20m
300ohms twin lead would be a better choice.

73 de F8BOE Olivier ...-.-


"JJ" a écrit dans le message de
...
I am thinking of putting up a windom antenna (see
http://www.hfantennas.com/Products.htm )and would like comments from
anyone who is using or has used one about the performance. Primay band
of interest will be 40 meters.

Thanks

I am thinking of putting up a windom antenna (see
http://www.hfantennas.com/Products.htm )and would like comments from
anyone who is using or has used one about the performance. Primay band
of interest will be 40 meters.

Hello JJ ...... I am using a Carolina Windom which is really on OCF dipole
from what I gather. How does it work ??? Well I much prefer my old inverted
vees but it does get me on the air on multiple bands with one feed. I am
sure that the marginal height of my system is a negative (about 25-30 feet
or so). Again it does get me on the air and the K-2 tuner handles things
well enough although the thing is supposed to function well without a tuner.

God Bless JJ ...catch you on the air one of these days ..... 73 Tom
Popovic KI3R Belle Vernon Pa.

garigue wrote:
I am thinking of putting up a windom antenna (see
http://www.hfantennas.com/Products.htm )and would like comments from
anyone who is using or has used one about the performance. Primay band
of interest will be 40 meters.


Hello JJ ...... I am using a Carolina Windom which is really on OCF dipole
from what I gather. How does it work ??? Well I much prefer my old inverted
vees but it does get me on the air on multiple bands with one feed. I am
sure that the marginal height of my system is a negative (about 25-30 feet
or so). Again it does get me on the air and the K-2 tuner handles things
well enough although the thing is supposed to function well without a tuner.

God Bless JJ ...catch you on the air one of these days ..... 73 Tom
Popovic KI3R Belle Vernon Pa.


Thanks for the comments Tom. I just need something for now to get back
on the air.

73 - JJ

"garigue" wrote in message news:Nz%bc.75735$JO3.40076@attbi_s04...
I am thinking of putting up a windom antenna (see
http://www.hfantennas.com/Products.htm )and would like comments from
anyone who is using or has used one about the performance. Primay band
of interest will be 40 meters.

Hello JJ ...... I am using a Carolina Windom which is really on OCF dipole
from what I gather. How does it work ??? Well I much prefer my old inverted
vees

Don't tell them this...This will ruin my plan for less work and more
sleep on field day night...:/ MK

I'm not a technical expert like many on this group, but I have used a
Antennas & More TNT-Windom (OCF dipole) for a few years now both in an
inverted-vee dipole and "windom half-square" configuration up 35'
(33V'-66H'-33V') set up N-S. This TNT model has a choke balun near the
feedpoint that helps with RF on the coax.

The best set-up was the half-square which had low angle broadside gain E-W
on 40M and on some higher bands. Good 80M coverage given the height too and
excellent DX above 40M. Good matches everywhere (17M & 12M too, more
difficult on 30M, 15M and 10M) but my built-in tuner on the TS450SAT did it
all regardless. I even used an external tuner for 160M tuning - poor
performance, but okay for 400 miles around - for extra multis in contests.

I think this model is better than the Carolina Windom because the Carolina
vertical element needs to be 15' from any metal - according to a phone call
to the manufacturer. I hang from a TV tower now so the tower proximity
would interact much more the Carolina model.

This was my 2nd commercial purchase to replace a hurting G5RV and I feel it
works MUCH better than the G5RV it replaced. I still use it for 80M-40M
portable contest work.

...... va3kai





"JJ" wrote in message
...
I am thinking of putting up a windom antenna (see
http://www.hfantennas.com/Products.htm )and would like comments from
anyone who is using or has used one about the performance. Primay band
of interest will be 40 meters.

Thanks