Re: HT20 LPF performance
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I have. <g>
The source impedance is 12.5 ohms. That's how the HT is able to put out 5W - there's an impedance transformation in the LPF.
On Mon, Aug 26, 2019 at 9:45 AM Curt via Groups.Io <firstname.lastname@example.org> wrote:
Has anyone simulated the HT20 LPF? Using ELSIE to simulate, must be doing something wrong, seeing 3 dB loss at 14 MHz. Of course a deep 60 dB suppression at 25 MHz. I am using 50 ohm input and 50 ohm output impedance. What does the actual output spectrum look like on a scope? ( I don't own one ).