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[TenTec] "Tuning" antennas; baluns

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Subject: [TenTec] "Tuning" antennas; baluns
From: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Tue, 23 Sep 97 11:48:02 -0400
On 9/23/97 11:30 AM, RICHARD ANDREN at andrenr@ul.com wrote:

>Now I'm getting confused.....  Doesn't an antenna act and resonate 
>differently depending on it's height (I think).  Is this true?  I've tuned 
>antenna's 10 feet of the ground, and had to retune when they were 60 feet 
>off the ground.

Proximity to the ground (and other objects) affects the electrical 
characteristics of the antenna, hence changing its resonance. 

>Also, I thought a tuner would correct the L and C to obtain resonance 
>(within reason) so you could resonate any object... screen door, gutters, 
long wire, 
>etc.  Ok, I probably need to read more.

You are correct. Such a condition is known as a conjugate match.

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr@radio.org
Quote: "Not in a thousand years will man ever fly!"
            -- Wilbur Wright, 1901

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