Well, I don't think of myself as a naysayer, Carl. I do offer thoughts
and
opinions on some posts on this reflector.
Why are personal insults or comments any part of how antennas work?
_
Topband Reflector
On 9/7/2013 11:42 AM, Bruce wrote:
...
Many have tried 5/8 wavelengths on lower bands and experienced poor
long haul results.
Included among the many have been a number of medium wave broadcast
stations, influenced I'm sure by the promise of intense low angle
radiation, which covers the
verticals feasible?
Subject: Re: Topband: Are stacked verticals feasible?
Gee, I wonder if Carl had any idea what a catfight he was going to
start,
when he began this thread?
** Nope but what dissapoints me is that no one has modeled this and one
just
tells past tales of irrelevant attempts
Subject: Re: Topband: Are stacked verticals feasible?
Gee, I wonder if Carl had any idea what a catfight he was going to
start,
when he began this thread?
** Nope but what dissapoints me is that no one has modeled this and one just
tells past tales of irrelevant attempts at doing
...@windstream.net; Tom W8JI; p...@n1bug.com; Bob Kupps; Guy Olinger
K2AV; Bruce
Cc: 'topband'
Subject: Re: Topband: Are stacked verticals feasible?
Subject: Re: Topband: Are stacked verticals feasible?
Gee, I wonder if Carl had any idea what a catfight he was going to
start,
when he began
Isn't this a Vertical dipole? Two quarter wave radiating elements? And
tower behind it will be some kind of reflector/director depending on
height. The radials seem unimportant if thought of this way.
Antennas radiate because of the current flow.
So you would have two current maximums, one
Tom and all,
If I am reading the question correctly, aren't we talking about something that
is done at VHF/UHF with great regularity? Stacked vertical elements, stacked
vertically polarized beams and all manner of stacked vertical anything are
done there all of the time to avoid cross
To: Tom W8JI
Cc: topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Tom and all,
If I am reading the question correctly, aren't we talking about something
that is done at VHF/UHF with great regularity? Stacked vertical elements,
stacked vertically polarized beams and all
: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tom W8JI
Sent: Friday, September 06, 2013 10:01 AM
To: topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
If I am reading the question correctly, aren't we talking about
something that is done at VHF/UHF with great
Tom,
Fully understood. I wasn't referring to the usual collinear antennas sold by
comet or anything of that nature. I am referring to the stacking arrangements
used for ops like moonbounce, etc. As far as the design theory (and practical
application) goes, I have a reasonable amount of
Oh, I didn't address one comment you made, Tom.. 5/8ths are dogs on 160?
Really? That is odd in the extreme to me. I had incredible success with a
ground mounted 5/8 on 20 meters while I was stationed in Hawaii. I was rather
space limited, so I could only go up and a tower mounted beam
Oh Tom, I FULLY agree that it would be VERY difficult and not very practical,
especially considering we are talking 160.. In fact, the price/performance
ratio simply wouldn't be worth it, in my own humble opinion. no doubt about
that.
There are certainly better ways to get ALOT more
Guy, I was right across from the small marina you see. The difference I am
talking about is the difference between a 5/8ths wave vertical and a quarter
wave vertical in the same place. I am not talking about the difference between
a vertical next to the sea as compared to a vertical in
Guy, you aren't reading my emails.. because that question is not
appropriate to the conversation. I am NOT, I repeat NOT talking the difference
between LOCATIONS, but the difference between ANTENNAS AT THE SAME LOCATION! I
am NOT talking about RURAL ANYTHING. That location being on Gannet
Like Tom said earlier, it's all about ground loss. Near the sea, a 1/2 or
5/8 wave vertical may perform very differently than a duplicate antenna a
long way from the sea. The near-field and far-field losses at the lower
angles would be much lower.
73, Mike
www.w0btu.com
On Fri, Sep 6, 2013 at
On two meters, yes indeed. But we are talking about 160. To quote Tom above:
Also, for 160, antennas are near earth. Earth spoils everything. A 160
antenna at 260 feet is like a two meter antenna at 3.25 feet above ground.
... This is 160. The distance ratio for the same behavior on two meters
Mike, you are answering the wrong question. Guy didn't understand the question
at all. I KNOW that sea water is a better ground than dirt.. The
comparison I was ALWAYS talking about had NOTHING AT ALL to do with LOCATION!
NOTHING! The comparison was a quarter wave vertical compared to a
Subject: Re: Topband: Are stacked verticals feasible?
Tom,
Fully understood. I wasn't referring to the usual collinear antennas sold
by comet or anything of that nature. I am referring to the stacking
arrangements used for ops like moonbounce, etc. As far as the design
theory (and practical
of the tower would play a very significant role!
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Mike
Armstrong
Sent: Friday, September 06, 2013 9:46 PM
To: Mike Waters
Cc: topband
Subject: Re: Topband: Are stacked verticals feasible?
Mike
On 09/06/2013 09:26 AM, ZR wrote:
I would think that at 6-12' spacing from the tower it would minimize
interaction on 160 or 80?
I don't know, Carl. I'll leave it to the experts. What I do know is
I have made several attempts to erect a vertical for 80 meters near
my 160 meter tower, using
To: Shoppa, Tim; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Look at it as 2 ground planes with the lower feed point 1/4 wave above
ground along with its elevated radials which should make it pretty much
ground independent according to what has been published
that much height?
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of ZR
Sent: Friday, September 06, 2013 9:26 AM
To: Shoppa, Tim; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Look at it as 2
To: Charlie Cunningham
Cc: ZR; Shoppa, Tim; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Carl and Charlie,
I am not sure it would even be close to practical or even doable, but I
remember seeing an old book on verticals written by a prior Navy Captain, I
believe. He had
To: Mike Armstrong
Cc: Charlie Cunningham; ZR; topband@contesting.com; Shoppa, Tim
Subject: Re: Topband: Are stacked verticals feasible?
Mike,
This is the book.
http://store.cq-amateur-radio.com/Detail.bok?no=26
73, Tony K4QE
On Fri, Sep 6, 2013 at 10:41 PM, Mike Armstrong armst
height?
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of ZR
Sent: Friday, September 06, 2013 9:26 AM
To: Shoppa, Tim; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Look at it as 2 ground planes
, September 06, 2013 10:42 PM
To: Charlie Cunningham
Cc: ZR; Shoppa, Tim; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Carl and Charlie,
I am not sure it would even be close to practical or even doable, but I
remember seeing an old book on verticals written
from the tower??
Charlie, K4OTV
-Original Message-
From: Mike Armstrong [mailto:armst...@aol.com]
Sent: Friday, September 06, 2013 10:42 PM
To: Charlie Cunningham
Cc: ZR; Shoppa, Tim; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Carl
On 09/06/2013 09:26 AM, ZR wrote:
I would think that at 6-12' spacing from the tower it would minimize
interaction on 160 or 80?
I don't know, Carl. I'll leave it to the experts. What I do know is I have
made several attempts to erect a vertical for 80 meters near my 160 meter
tower, using
...@contesting.com] on behalf of Carl
[k...@jeremy.mv.com]
Sent: Thursday, September 05, 2013 9:17 AM
To: topband
Subject: Topband: Are stacked verticals feasible?
Assuming that sufficient tower height was available, guy wires are insulated
or broken up into short non-resonant sections. Tower face is 12 or 18
...@contesting.com] On Behalf Of Shoppa,
Tim
Sent: Thursday, September 05, 2013 10:30 PM
To: Carl; topband@contesting.com
Subject: Re: Topband: Are stacked verticals feasible?
Isn't this a Vertical dipole? Two quarter wave radiating elements? And
tower behind it will be some kind of reflector/director
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