[TowerTalk] Step-down balun 12.5-50ohm

[Perry - K4PWO]

True, but flipping the balun would unbalance the intended balanced side due 
to the ground reference point.  I said "might not" because I didn't know his 
antenna feedpoint configuration.  My pet peeve is people who insist on 
calling a coax air wound or ferrite bead choke a balun (no balanced to 
unbalanced consideration).

73 de Perry - K4PWO

----- Original Message ----- 
From: "Jim Brown" <jim at audiosystemsgroup.com>
To: "Tower Talk List" <towertalk at contesting.com>
Sent: Friday, August 21, 2009 00:26 AM
Subject: Re: [TowerTalk] Step-down balun 12.5-50ohm


> On Thu, 20 Aug 2009 13:57:58 -0500, Perry - K4PWO wrote:
>
>>ust flipping the balun might not work as the Hi-Z side is balanced and the
>>Lo-Z side is unbalanced.  Just the reverse of what he probably needs.
>
> It's the circuit, including the antenna and transmission line and coupling 
> to
> surrounding objects that makes an antenna balanced or not. A balun does 
> not do
> that.
>
> I suggest that you (and the original poster) study my tutorials on RFI and
> Common Mode Chokes.
>
> http://audiosystemsgroup.com/publish
>
> 73,
>
> Jim K9YC
>
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>