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Re: 2 poles filters teminaison impedance

 

Edy555, the first NanoVNA developer, did some measurements on monolithic crystal filters like the ones Gerard is using (45R15AZ; motorola 20J26) . The article is on his website in Japanese at the link below:



A translation to English is attached.

Roger

Looking at Crystal Filter Characteristics with NanoVNA.pdf
Looking at Crystal Filter Characteristics with NanoVNA.pdf

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