I do not use a choke with my DXCC and it works just fine but every
situation is different.
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Jim Gammon
Sent: Thursday, July 18, 2013 5:48 PM
To: [log in to unmask]
Subject: Re: Windom 6 thru 80 meter antenna
Hi Steve, what is the diameter of the 10 turn coax choke? In my case, I am
not using any power over the 100 watts, am using a DXCC center fed antenna
with no ballon, do you think there is any need for a coax choke with this
kind of set up. My recollection is that there is not, but I am always open
to thoughts on this subject. I just found out that my ground may not be
sufficient so am off to get an eight foot ground rod to pound in by my
shack. Jim WA6EKS
----- Original Message -----
From: Steve Forst <[log in to unmask]
To: [log in to unmask]
Date sent: Thu, 18 Jul 2013 17:44:22 -0400
Subject: Re: Windom 6 thru 80 meter antenna
Fred,
One final thing I'll throw out as a head's up, is that since the off
center fed antenna is unbalanced, there is a bit more of a chance of
RFI then with a center fed dipole. More likely if you run
power.
I had some RFI when running a THP solid state amp on 1 or 2 bands,
which caused the amp to fault. A ten turn coax choke at the
feedpoint
fixed it.
I won't say it is a common problem, but it is something you should be
aware of.
You might want to look at reviews on e-ham to help with your
research.
73,
Steve KW3A
On 7/18/2013 4:51 PM, Fred Adams wrote:
I just got my wife to help me do a little measuring and I
believe I can
just fit the 80 meter windom antenna in. I plan to put a small
station in
my bedroom and I have a small 38 foot roan tower outside my
bedroom so I
think I have the support in the perfect place. It looks more
interesting
all of the time. I am close to the city airport so I can't put
up anything
very high. My base station is about 42 feet at the apex and
does fine for
what I do. On my base station I have a 80 double bazooka and a
DXCC
antenna. Thanks to all of you guys for the info. I will let
you know how
things work out. I think I will give the windom a good try.
Thanks again,
-----Original Message-----
From: For blind ham radio operators
[mailto:[log in to unmask]]
On Behalf Of Steve Forst
Sent: Thursday, July 18, 2013 3:52 PM
To: [log in to unmask]
Subject: Re: Windom 6 thru 80 meter antenna
Ok Fred. If you plan on using a support to hold up the
balun/feedline, figure about 90 feet for the long end of the
antenna and
45 feet for the short end. If you are lucky, you will have an
existing support at the right spot. I didn't use any support
for the
feedpoint, but many people do.
73, Steve KW3A
On 7/18/2013 3:43 PM, Fred Adams wrote:
Steve, thanks much. I plan to do some outside measuring and a
little
further checking on the antenna but I like the sound of the info
that
you provided. Thanks again,
-----Original Message-----
From: For blind ham radio operators
[mailto:[log in to unmask]]
On Behalf Of Steve Forst
Sent: Thursday, July 18, 2013 3:29 PM
To: [log in to unmask]
Subject: Re: Windom 6 thru 80 meter antenna
Fred,
It is basically the same length as a full size 80 meter dipole,
just
that the feedpoint is off center. Depending on what brand you
go with,
it will be somewhere around 133 - 136 feet long and feedpoint
will
be around 2/3 from one end. Baluns will also vary: some use 4:1
and
others use 6:1.
I had one up a few years ago and it worked quite well. It works
harmonically on bands above the lowest band (80 meters), so no
tuner
needed on 40, 20, 10, and even on 12 and 17 meters. It's not
resonant
on 30 and 15 meters although you can use a tuner and make it
work.
There is also a mod to add a parallel dipole to make it resonant
on 30
and 15.
Mine was set up in a slanting configuration, with one end
hanging
down from the highest point. I think it can work in a few
different
configurations, but maybe the flat top or inverted vee are the
most
common.
Good luck, Steve KW3A
On 7/18/2013 3:11 PM, Fred Adams wrote:
Are any of you guys running the 6 thru 80 meter windom antenna?
If
so, I would appreciate some info on this antenna. How long are
the
legs and best height for average use? Any good or bad things
that
you have to say about the antenna. I recently heard a guy
talking on
a windom and he had a very good signal barefooted and this got
me
interested. First, I have to know the length so I can find if I
have
the
space. I will appreciate any info
good or bad. Thanks much,
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