TopBand: Re: Measuring impedances through a filter

[P & V Nesbit]

At 21:33 24/06/1998 +0000, Dave_K9NX wrote:
>(snip) A better approach might be to calculate the "filtered"
>R+jX from the measured Z and SWR reading then if you know the
>values of the components in the filter run that through
>"backwards" through Radio Designer or some other circuit
>simulation program to get the exact R+jX. This eliminates the
>need to have a wide range of R, L and C comp on hand to do the
>substitution...

This is just what I proposed. I never suggested physical substitution,
because that is what programs like Radio Designer are supposed to free us
from!

Perhaps I didn't make this point clear enough. Thanks for the clarification.

Peter VK3APN
pnesbit@melbpc.org.au


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