[AMPS] Smith Chart center point

[Phil T. (VA3UX)]

At 10:43 PM 10/1/99 +0100, you wrote:

>>The 
>>50+j0 point on a Smith Chart is the very center of the chart.  A VSWR has 
>>the 50 Ohm point as its center.  
>
>Nope. The center on a standard Smith Chart is 1.0 ohms. You are either outa
>school too long or never knew it to begin with. Remember the little part
>about normalization? 50 ohms is neither sacred nor universal.
>
>

Actually, they do make Smith charts with 50 ohm centers. I had a stack of
them here until they were used up.  The charts with the "1.0" centers I
think are in wider use because they're not restricted to any particular
surge Z, and they can be used for Z or Y data points.  I prefer these over
the 50 ohm jobbies.

Phil
>73,
>
>Larry - W7IUV
>w7iuv@arrl.net
>http://www.axtek.com/w7iuv
>Amp pix at http://207.108.137.61
>
>
>
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