Re: Impedance measuring

K2DB Paul Mackanos

Thanks for the heads up, I was thinking it had to be set for a freq. 
73 Paul K2DB

On Sun, Apr 5, 2020 at 6:49 PM <fred.g3srf@...> wrote:
I'm not certain that a LPF has a resonant frequency, it is a cut off frequency designed to remove harmonics. What are you showing in your picture of the analyser? Is your LPF showing a resonance at that frequency?
To check the response of a filter, it is best to look at a graphic display, does the Autek Research unit give such a display?

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