Topband
[Top] [All Lists]

Re: Topband: 160m Sloper on Crank-up tower

To: kq0b@sbcglobal.net
Subject: Re: Topband: 160m Sloper on Crank-up tower
From: Herb Schoenbohm <herbs@surfvi.com>
Reply-to: herbs@surfvi.com
Date: Mon, 20 Apr 2009 18:41:24 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Michael W Elliott wrote:
> I am trying to use a 160m  sloper on a  TRI-EX  54 foot crank-up tower.  
>  
>
> Any help would be appreciated.
>  
>
>  
> 54 feet is a little short but with a beam on top you may be close to having a 
> functioning vertical.  With three or four 5 foot metal speaders at the top I 
> would drop wires to the ground in the form of a cage.  Make sure the coax and 
> rotor cables are all grounded or chocked at the base. I would not at first 
> worry about finding the sweet point in the form of a tap to the tower.  You 
> already have a unipole with the cage connected at the top of the steel and 
> your grounded coax or a single wire will provide the return path to ground, 
> which ever is easier. Use a CLC network to match the tower or use an 
> impedance bridge to save time.  You will fid that even a 54 foot top loaded 
> vertical is most likely a better DX performer than a cloud warming sloper.
>   

73 and good luck.......Herb, KV4FZ





_______________________________________________
Topband mailing list
Topband@contesting.com
http://lists.contesting.com/mailman/listinfo/topband

<Prev in Thread] Current Thread [Next in Thread>