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Re: [TowerTalk] Antenna Side-mounted to Tower

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Subject: Re: [TowerTalk] Antenna Side-mounted to Tower
From: "K8RI on TowerTalk" <>
Date: Thu, 31 Aug 2006 02:28:22 -0400
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Another route is 4 half wave folded dipoles fed in phase using (I think it 
was a 90 ohm coax harness).  You can put them all on one side of the tower 
for reasonable gain or orient them 90 degrees apart or two on each side of 
the tower for 180 degrees.  They'll be broad any way.

As I recall these are in the ARRL Antenna handbook or Handbook.  I have 4 
made up out of 1/2" copper pipe and fittings, but have not put them up yet. 
I may put them on the top of the mast at 130 feet in place of the stacked 
arrays for 144 and 440 which I rarely use.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2

>I have never been one to mess with 2 meters but recently I have found an
> interest and I am thinking of mounting an antenna on the side of my tower. 
> I
> intend to make the antenna and am thinking of a colinear design. I have 
> been
> told that if I make a J-Pole I will not be able to mount it to the side of
> the tower even if I extend it out say 4 feet. Thus I am limited to a 
> ground
> plane. Can anyone give me some advise on this? How far away should an
> antenna be so it does not effect the SWR? Is it true that the J-Pole will
> not work next to the tower?
> Thanks for your help.
> 73,
> John, KA9OFM
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