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Re: [TowerTalk] Open wire feed line length

Subject: Re: [TowerTalk] Open wire feed line length
From: Steve Hunt <>
Date: Wed, 02 Jul 2008 22:12:17 +0100
List-post: <">>
Richards wrote:
> okay, that makes sense to me.    But, then why do they use
> a 4:1 balun for open feeder line?

Because open-wire feeder is often used in applications where it is
unmatched - for example a doublet. Although the characteristic impedance
of the feeder might be 450 Ohms, in these applications the impedance
presented at the ATU is likely to be something completely different.

Steve G3TXQ


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