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Re: [TowerTalk] Stacking Dissimilar Antennas

To: Edward Sylvester <>
Subject: Re: [TowerTalk] Stacking Dissimilar Antennas
From: bob finger <>
Date: Sat, 19 Aug 2006 07:37:09 -0400
List-post: <>
Run HFTA.  You will be amazed to see that the little one at 35 feet will 
be MUCH better to some areas of the world at times.  Here on the east 
coast there are times when the 40 footer will be 8-10 db better into EU 
and SA and AF than will the same antenna at 70 feet.  It is the 
difference in being first in or among the last to be heard.  Everyone 
who contests should try to have one antenna that is at 40 feet or so.  
When the angles are high that beam at 70 feet will have a null right 
where the signals are coming.  HFTA will graphically display that so you 
can see what will be going on. 73 bob de w9ge

Edward Sylvester wrote:

>  But if I don't combine the antennas and simply have them completely 
> separate, is there an advantage here in terms of vertical take off angles 
> because of the different heights of the antennas (i.e. lower antenna better 
> for short path and higher antenna better for long path and short path to 
> farther places)?
>  Or am I just spinning my wheels and reaching a point of redundancy?


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