[TowerTalk] RE :Mosley TA34XL

[Dudley Chapman]

Jim,
    The Mosley faq at the link you provided sheds no light on why they
recommend no balun.  It's as unscientific as their inability to explain that
advice over the phone.  That business about gain and f/b with the same
tuning may be true, but it has no bearing on the balun discussion.  I think
they just don't really understand why and when baluns are needed.  
    On the other hand, it's not surprising that most installations of
tribanders from any vendor seem to work ok without a balun, since the
feedline comes off along the boom and down the tower in a way that preserves
symmetry with the E field of the antenna.  
    So the real question is how unique is the Mosley design compared to
other tribanders that make a balun unnecessary or detrimental? I bet the
answer is that it is not unique in that regard.  So that puts us back into
the age old balun vs no balun for any antennas in general.  Is that the way
you see it?

Dudley - WA1X


Jim wrote.......

Message: 2
Date: Fri, 29 Apr 2005 23:19:14 EDT
From: Jamesnf at aol.com
Subject: Re: [TowerTalk] Mosley TA34XL
To: k3cc at fast.net, towertalk at contesting.com
Message-ID: <191.3e58dd3b.2fa45332 at aol.com>
Content-Type: text/plain; charset="US-ASCII"

In a message dated 4/29/2005 9:54:28 PM Central Standard Time, k3cc at fast.net

writes:
I called Mosley after I read the instructions and they said don't use a
Balun but couldn't give me a gud explanation
Try reading the material at http://www.mosley-electronics.com/faq.htm#baluns

I've used a couple of the smaller Mosley tribanders over the years and they 
worked fine with the insulated, split dipole driven element fed directly
with 
coax.

Jim W9TM