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[TowerTalk] Impedance Matching Losses

To: <towertalk@contesting.com>
Subject: [TowerTalk] Impedance Matching Losses
From: 2@vc.net (2)
Date: Fri, 31 Aug 2001 06:41:35 -0700
>
>Impedance matching losses.
>
>The efficiency of the antenna is not being questioned.
>Only the loss of power when coupling to it.
> ... ...
>A ground mounted wire half wave vertical fed at its base. Its feed point
>impedance will be in the thousands of ohms 

//  True

>with some reactance. 

//  A half-wave antenna exhibits zero reactance at it's resonant 
frequency.   

>Coupling to the 50-ohm coax can be done easily enough but what is the amount 
of
>power being lost.
>
//  When matched with the venerable L-network, little power is lost 
because operating Q is always minimal,  

cheers, Rich

-  R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.  
end


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