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[AMPS] MFJ-259 and matching circuits

To: <amps@contesting.com>
Subject: [AMPS] MFJ-259 and matching circuits
From: jono@enteract.com (Jon Ogden)
Date: Wed, 3 Feb 99 09:54:11 -0600
Well put, Bill.  I don't think I've heard anyone put it so deftly and so 
well!

Good job!

73,

Jon
KE9NA


>Interesting argument.  The point really is that an antenna tuner is 
>a resonant device that has a high Q. this means that at resonance
>it stores AC energy. Just like a child on a swing is storing 
>oscillating energy. That is to say that energy is oscillating between 
>kinetic to potential (current to voltage) storage devices (inductance and
>capacitance). It does not matter that the drive or load is non-linear.
>In the case of the swing the drive is a periodic short push of the parent
>and the 
>load resistance is usually drag which is approximately proportional to 
>speed. 
>  The high-Q averages out the effect of the nonlinearity so that you
>can use steady state analysis to solve the problem. In fact you want 
>this energy storage mechanism so that you don't splatter all over the
>place. 
>
>73
>Bill


--------------------------------------------------------------------------
Jon Ogden

jono@enteract.com
www.qsl.net/ke9na

"A life lived in fear is a life half lived."


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