[TowerTalk] Swinging gate antenna mounts

[Mike Ryan]

Dan, I had a 150ft Rohn 45 stick when I lived in Manassas, Va back in the 
late '90s.  There was a 4 x 4 x 4 stack of HyGain 204ba antennas on the 
tower with two side mounted and the third just over 160ft  and above a 3 ele 
40m beam that was on the tower top.  I used two of the IIX Industries side 
mounts with Ham IV rotators. The side mounted antennas were mounted in such 
away that the little bit of lost rotation was in a direction least likely 
aimed.  The spacing of the guy wires and avoiding resonant lengths to me is 
more important than trying to avoid a convenient spread of the ground level 
guy points to aim the antennas through, but that's just me.  I think the 
antennas were spaced where the guy points on the tower were spread apart to 
some extent rather than every 30ft for example so that the rotation was 
clear.  Once you know just where you want to put the antennas on the tower 
as far as spacing is concerned I think you can plan on where to attach the 
guys points and their end result on your pattern, directions, etc.   Good 
luck with it.  - Mike

-----Original Message----- 
From: Stan Stockton
Sent: Wednesday, May 29, 2013 12:58 PM
To: Dan Atchison
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] Swinging gate antenna mounts

Dan,

I think you would be happy with guying the tower at approximately 225
degrees, 345 degrees and 105 degrees and having the rotator sit off the leg
that is in the 105 degree direction.  Assuming you have enough room between
the boom to mast plate and the nearest element you should be able to cover
what you want and maybe even ZL.  I believe you need at least the distance
from the center of the vertical mast to the outside point of the farthest
leg of the tower.   Depending on how you mount the rotator 24 inches should
be good for 45G, for example.
73...Stan, K5GO
On Wed, May 29, 2013 at 11:20 AM, Dan Atchison <N3ND at aol.com> wrote:

> Stupid question, but I want to make sure I'm visualizing this correctly.
>
> I'm planning a new tower installation that will include a swinging gate
> antenna mount somewhere down the tower.  Antenna rotation desired is on
> this mount is CW, 270 through 180 degrees .  Based on experience, what's
> the best way to configure the tower's guy location/direction?
>
> 73,
> Dan
>
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