I'm not sure why my message posted three times when I only sent it once.
Yes, I meant using an elevation or azimuth rotator won't change the angle
of radiation. This is assuming level ground, if your antenna is on the side
of a mountain it will vary depending on direction.
John KK9A
----- Original Message -----
From: "JC Smith" <jc-smith@comcast.net>
To: <john@kk9a.com>
Sent: Saturday, July 29, 2006 10:11 PM
Subject: RE: [TowerTalk] Fw: [SteppIR] 3El height
John says: "Turning the antenna (even with an azimuth
rotator) won't change the angle of radiation."
I think he means elevation rotator.
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of john@kk9a.com
Sent: Saturday, July 29, 2006 1:01 PM
To: TOWERTALK@contesting.com
Cc: w7why@verizon.net
Subject: [TowerTalk] Fw: [SteppIR] 3El height
The original question (
http://lists.contesting.com/archives//html/Towertalk/2006-07/msg00834.html )
inquired if the angle of radiation could be changed by adjusting the element
lengths of 3 element SteppIR. Turning the antenna (even with an azimuth
rotator) won't change the angle of radiation.
John KK9A
To: "Towertalk"
Subject: Re: [TowerTalk] Fw: [SteppIR] 3El height
From: "Tom Osborne" Date: Sat, 29 Jul 2006 10:20:37 -0700
List-post: <mailto:towertalk@contesting.com>
I guess I don't understand why someone would want to do all this to shift
the pattern of the antenna in a different direction. Why not just rotate it
in the direction you want the pattern to go? I don't think there is any way
to make it have more gain. 73
Tom W7WHY
>I like the "squishy water balloon of constant volume" analogy for
> antenna patterns. You can poke and prod it into a bizarre shape, >but the
> overall power remains the same.
>
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