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antenna tuners

To: <>
Subject: antenna tuners
From: (Wes Stewart)
Date: Mon, 13 Jan 1997 19:32:55 +0000
At 11:55 PM 1/13/97 PST, you wrote:
>Don't know the original question, but as far as using coax as a cap. , been
doing it for
>years. ...[snip]

You may well be using the capacitive reactance of the coax, but strictly
speaking, it is not a *capacitor* but a capacitive stub.  In fact, make it
long enough, and it is an *inductor*.  It is a distributed element and
except at very low frequencies, the total capacitance is not length x pf per

The best way to see these effects is to plot the line on a Smith Chart.

73, Wes N7WS

>73, Ed

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