[Elecraft] 43 ft Vertical & Balun

[Phil LaMarche]

I have a 43 ft vertical from Zero Five and I purchased the switching balun
from Phil after it was featured in QST.  I switch back and forth from the
PRO67B at 72 ft and the vertical and am amazed how good the vertical works.
The ground is the key.

Phil 


Philip LaMarche
 
LaMarche Enterprises, Inc
Phil at LaMarcheEnterprises.com
www.LaMarcheEnterprises.com 
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 
www.w9dvm.com
 
K3 #1605
 
CCA 98-00827
CRA 1701
W9DVM
 

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David Little
Sent: Sunday, June 06, 2010 2:13 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] 43 ft Vertical & Balun

Those of you who a thinking about a 43 ft vertical or how to feed it might
read the links I have provided you here.
I have built a 43 ft vertical from a 50 ft telescoping Rohn push-up pole. I
am using a mesh ground system under it thanks to Home Depot's  4ft x 7 ft
mesh sheets linked together, radial wires, grounding rods, and a homebrew
balun.
I am using a K2 with ATU and 100 watts through a short run of LMR400 coax to
the base of the antenna where the balun is located. The 43 ft vertical also
supports my windom. The windom is insulated from the vertical.

Below are several links on the 43 ft antenna including the AD5X info on how
to build your own balun. I based my balun on his and it works fine. If you
do not wish the build your own balun, a great one can be purchased from
Balun Desins LLC. They offer two models for low and high power. The links
are all there.

http://vk1od.net/antenna/multibandunloadedvertical/index.htm
http://www.balundesigns.com/servlet/the-Ununs-for-Verticals-%26-Longwires/Ca
tegories
http://www.ad5x.com/images/Articles/Match160.pdf
http://www.ad5x.com/images/Presentations/Vertical43.pdf

73
Dave Little, AF5U 

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