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@audiosystemsgroup.com>
To: "Tower Talk List" <towertalk@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@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|