> Dave VanHorn wrote:
>
> > If all you care about is finding the biggest impedance discontinuity,
> > then you could do a lumped line oscillator, based on the fact that a
> > short at 1/4 wave reflects as an open, and at 3/4 wave as a short.
>
>   OK, I know I/m picky as ever, but you mean "and at 1/2 wave as a
> short".

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