TenTec
[Top] [All Lists]

Re: [TenTec] Bazooka antenna.. More than you wanted to know!

To: tentec@contesting.com
Subject: Re: [TenTec] Bazooka antenna.. More than you wanted to know!
From: Jim WA9YSD <wa9ysd@yahoo.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 5 Jun 2008 16:36:29 -0700 (PDT)
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Jerry,  Both the FD and bazooka on UHF/VHF antenna test use tubing with a large 
diameters.  This gave the antennas band width among other things.
The folded dipole had tubing on only one side.

The charts on the FD went off the scale with just wire on both half's and with 
large spaced spreaders.  Programs cannot adjust to it to give you any thing 
accurate unless and accurate simulation is built, other wise your guessing on 
its performance.

The crossed Double Bazooka will give you more band width I think 1.5 times more 
than a dipole.  Wide spaced FD about 2.0 times more than a dipole.  Whats the 
increased band width with the 2000pf cap and 3 foot cable combo compared to a 
dipole?

Bazooka eliminates the use of a balun that matches a balanced antenna to 
unbalance feed line makeing the DB a more reliable antenna.  Normally you would 
use a 6:1 balanced to balanced balun at the feed point of an FD and attach a 
1:1 current balun to it.  Too many pieces to fail for one reason or another.


 Keep The Faith, Jim K9TF/WA9YSD



      
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

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