It sure looks to me like the filter is for a lower frequency range than
what you're sweeping. Maybe mixed up the component sets?
toggle quoted message
Show quoted text
On Thu, Jun 4, 2020 at 3:55 PM GM7 <geeemmseven@...> wrote:
I haven't measured the parts yet. I have checked the capacitors are
correct based on the markings and that the torroids have the correct number
of turns.
All 4 filters that I built show the same response so I suspected that my
test setup or methodology was likely to be wrong.
I have another kit so I could build it measuring the components as I go.
Is there a standard setup for measuring filter response with the NanoVNA?
--
Carey Fisher
careyfisher@...