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Re: [TowerTalk] Fwd: Re: vertical ground experiment

Subject: Re: [TowerTalk] Fwd: Re: vertical ground experiment
From: Bill Turner <>
Date: Thu, 21 Jun 2007 20:13:40 -0700
List-post: <>

On Thu, 21 Jun 2007 14:45:20 -0700 (PDT), John Cowan <>

>If I have a 1/4 wave vertical and the feedpoint measures 27 ohms, what does 
>that tell me?

------------ REPLY FOLLOWS ------------

If it shows only resistance and no reactance, I'd check he meter's

Sounds like I'm joking but I'm not. A perfect, infinite ground should
give you about 36 ohms. Anything less than perfect should add
resistance, not subtract it. 

Having said that, I should add a qualifier: It might be possible to
add some kind of impedance transforming device between the coax braid
and the connection to ground which might cause a lower reading, but I
was talking about a direct ground connection.

Bill W6WRT

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