m] On Behalf Of Mike
> Waters
> Sent: Sunday, August 27, 2017 3:11 PM
> To: Mike Furrey <mikefur...@att.net>
> Cc: gary mankoff <garyj...@gmail.com>; topband <topband@contesting.com>
> Subject: Re: Topband: Best 160 antenna
>
> The importance of a ferrite chok
...@contesting.com] On Behalf Of Mike
Waters
Sent: Sunday, August 27, 2017 3:11 PM
To: Mike Furrey <mikefur...@att.net>
Cc: gary mankoff <garyj...@gmail.com>; topband <topband@contesting.com>
Subject: Re: Topband: Best 160 antenna
The importance of a ferrite choke balun at th
Have there been any professional studies done on the efficiency of elevated
radials?
One would think the broadcast industry would be interested in a few elevated
radials instead of burying all that expensive copper. They could use the
Aluminium conductor steel-reinforced cable favored by the
Next to last paragraph is what I had focused on before sending you an email
last night. Seems there it is not cut and dried solution, maybe even some
black magic, as opposed to an excellent ground system. I would take my chances
with 120 radials on ground given the choice and dispense with
Maybe not. There has been more research done since I last read N6LF's
writings, etc. The earth underneath must have something to do with it. In
any case, the current has to be the same on all the radials.
This is the first reference. See what you think.
Really? Well established FACT? I’m quite confused then as reading John’s book
it seems quite nebulous the impact of elevated radials. Doesn’t seem to be a
‘fact’ – more dependent on location and other variables. I’m not suggesting
you’re wrong – just it seems the jury is quite out on this
Wow! What a question to ask on this site. Gary, every member has an
answer. Back as far as the 70's I asked that question of about 80 160 DXers
world
wide. I had more than 60 of them answer with diagrams, charts, results,
pictures and descriptions. Eventually a summary of the survey was
ike Furrey<mailto:mikefur...@att.net>
> Cc: gary mankoff<mailto:garyj...@gmail.com>; topband<mailto:topband@
> contesting.com>
> Subject: Re: Topband: Best 160 antenna
>
> The importance of a ferrite choke balun at the feedpoint cannot be
> overemphasized.
lto:mikew...@gmail.com>
Sent: Sunday, August 27, 2017 3:13 PM
To: Mike Furrey<mailto:mikefur...@att.net>
Cc: gary mankoff<mailto:garyj...@gmail.com>;
topband<mailto:topband@contesting.com>
Subject: Re: Topband: Best 160 antenna
The importance of a ferrite choke balun at the feed
x6vm.jo...@gmail.com>
>Sent: Aug 27, 2017 12:31 PM
>To: gary mankoff <garyj...@gmail.com>
>Cc: topband@contesting.com
>Subject: Re: Topband: Best 160 antenna
>
>Hi Gary
>
>Congratulations!
>
>Best or what people are using?
>
>For best maybe you can take a loo
The importance of a ferrite choke balun at the feedpoint cannot be
overemphasized. A good design for 160m is 5 or 6 turns of coax wound
through five stacked 2.4" 31-material ferrite toroids. Photos and details
on my web pages referenced earlier.
I had two elevated radials. It is a
Hi Gary,
For many years I used an inverted L between two tall pine trees and one
elevated radial that was L shaped to fit on the 90' x 60' lot I had in Spring,
TX. The radial was about 15' up and it was fed through a choke balun. Worked
about 160 countries with 600 watts output. I also had an
Gary,
I've compiled some useful information about this at
www.w0btu.com/160_meters.html.
Maybe you can use those trees as supports for a few elevated radials under
an inverted-L! Scroll down to the links part at
www.w0btu.com/Optimum_number_of_ground_radials_vs_radial_length.html
73, Mike
Hi Gary
Congratulations!
Best or what people are using?
For best maybe you can take a look at VY2ZM antennas :-)
What people are using, maybe and inv L, vertical with lot of radials, 1/2 wl
sloper
I had big success with 1/2 wl sloper
Good luck!
73,
Jorge
CX6VM/CW5W
Enviado desde mi
Hi everyone
I finally have some land to do a 160 meter antenna
Lots of tall trees
May I have some input as to what people are using on 160
Gary
N6biz
Sent from my iPad
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